IMRP 2008 Conference Theme, Scope and Objectives

9:00-9:20 Monday 21 September
John Woolston, PhD. Chair of the IMRP 2008 Programme Committee
Chair for Keynote Speakers: Dr. Ian Latham - Managing Director - REVISS Services UK. Ltd
Chair for Plenary Speakers: Mr. Paul Santing - Chief Executive Officer - Isotron Ltd.
Introducing the Conference Hosts - REVISS and Isotron; Organizing, Program and Poster Committees...

9:30 - 10:15 Monday 22 September | StepChange in Materials Discovery - Directions and Drivers
Director of the Centre for Materials Discovery and Head of Chemistry at the University of Liverpool, U.K.
Environmental conservation and declining fossil fuels are two of many external drivers that are influencing the direction of research in Professor Cooper's main fields of interest. His presentation will provide delegates with an exciting insight into the future of Materials Development.

11:15 - 12:00 Monday 22 September | The Development of Global Healthcare Markets Role of Governments and Trade Associations by George Kennedy, CBE - Chairman of Eschmann Equipment and President of the Association of British Health Care Industries

Healthcare markets around the world develop in response to a number of drivers and influences, some
historical perspectives will be considered and views offered on future developments. Key amongst the
influencers are the attitudes and positions of Governments in the manufacturer's home base and in the
potential markets.

14:15 - 15:00 Monday 22 September | Plenary Session 2: Advanced Materials
David A. Vroom, PhD: Formerly Director of R&D Raychem/Tyco - Consultant in Radiation Processing, USA | The development of materials suitable for radiation processing is a complex process that involves understanding customer requirements, product design, manufacturing processes, regulatory issues and the individual and synergistic effects of radiation on all components of the material. New products are generally smaller, greener and more robust than earlier versions.

13:30 - 16:15 Monday 22 September | Plenary Session 3: Global Trading
Natesan Ramamoorthy, PhD: Director of the Division of Physical and Chemical Sciences, IAEA, Austria | Radiation processing has become a well accepted technology on the global market, from sterilization of medical devices, through polymer cross-linking and controlled degradation, grafting and curing, to irradiation of selected food items. Besides these well-established uses, new technologies and applications are emerging in the area of environmental protection and synthesis of advanced materials. The new technologies aiding the development, manufacture and analysis of advanced materials as well as for tackling environmental pollutants and biohazards are attracting increasing interest in many Member States (MS) of the IAEA.

16:15- 16:30 Monday 22 September | Plenary Session 3: Global Trading
Paul Wynne, iia Director | The international irradiation Association (iiA) is the only global association with members from throughout the world that includes the leading suppliers of both isotope and machine based radiation equipment, multi-national healthcare companies, as well as the providers of over 90% of the world's contract irradiation services. iiA (including its predecessor AIII) and our members continue to play a leading role in the continuing development of industrial radiation-processing applications.

16:30 - 17:00 Monday 22 September | Plenary Session 3: Global Trading
John Masefield, iia Chairman | Since 1978 our industry has recognized twenty-eight individuals for their outstanding contributions in advancing the science, technology or business of radiation processing individuals nominated by peers.

Congratulations to Dieter Ehlermann recipient of the prestigious IMRP Laureate Award in recognition of Outstanding Contributions in Advancing the Science of Radiation Processing.

Congratulations to Rocco Basson in receiving the prestigious IMRP Laureate Award in recognition of Innovation and Leadership in Advancing Radiation Processing.  

8:30 - 10:30 Tuesday 23 September
Chair: Byron Lambert- Abbott Vascular, USA

11:00 - 12:30 Tuesday 23 September
Chair: Byron Lambert

15:30 - 17:00 Tuesday 23 September
Chair: Dave Meyer, Sterigenics, USA

15:35 - 15:50 Tuesday 23 September | Global Trading 1: Commercial Systems and Market Developments
Jean-Louis Bol, IBA, Belgium | With years, IBA has developed innovative approaches for the sterilization by X-Ray irradiation based on the existing 7 MeV 700 kW Electron power Rhodotron. The interaction with customers, using Gamma technologies for years, pushed in the direction of a simple and flexible solution: an X-ray converter irradiate a single layer of totes.

15:50 - 16:05 Tuesday 23 September | Global Trading 1: Commercial Systems and Market Developments
Philippe FONTCUBERTA, Linac Technologies SAS, France | The paper presents e-beam accelerator facilities from small in-line self-shielded units to medium power high energy industrial and research facilities and discusses latest developments to existing technology and the new systems which have been developed in the past few years.

15:30 - 17:00 Tuesday 23 September | Global Trading 1: Commercial Systems and Market Developments
Larry Winn: MDS Nordion, Ottawa, Canada | The design of large scale industrial irradiators has evolved significantly since the first North American irradiator was installed by MDS Nordion in 1963. Current designs provide efficient, effective and reliable delivery of sterilization dose for traditional single use medical disposables, as evidenced by the more than 40% share of the sterilization market commanded by gamma globally.

16:20 - 16:35 Tuesday 23 September | Global Trading 1: Commercial Systems and Market Developments
Peng Wei: Beijing SQHL Radiation Engineering Technology Co., China | The first gamma irradiator was constructed in China in the late of 1950's, through nearly half century's development, now there are total 101 gamma irradiators (design capacity more than 0.3 MCi) with total design capacity more than 100MCi in operation in China, and other 10 irradiators with total design capacity of 15MCi under construction.

16:35 - 16:50 Tuesday 23 September | Global Trading 1: New Commercial Systems and Market Developments
Kohli, A. K., India | Radiation processing of food is in its infancy in India. Currently radiation processing of food is being carried out mostly for export purposes. Export markets also have not been fully exploited as yet and tremendous scope lies ahead. The products currently being treated by gamma radiation besides medical products are mainly spices and pet feed.

8:30 - 10:30 Tuesday 23 September
Chair: Joachim Gehring - BGS,Germany

8:40 - 9:00 Tuesday 23 September | Advanced Materials 1: New Applications
Lewis Parks, Sterigenics Advanced Applications, USA | Long chain branching (LCB) was induced on carefully selected grades of high density and linear low density polyethylenes by electron beam irradiation under ambient conditions at controlled, relatively low radiation doses. Although there was little or no crosslinking, the molecular weight distribution became wider after irradiation. The melt flow index of these polymers decreased significantly with increasing radiation dose.

9:00 - 9:20 Tuesday 23 September | Advanced Materials 1: New Applications
Richard Galloway, IBA Industrial,USA | Carbon fiber reinforced composites were cured in molds using X-rays derived from a high current electron beam. X-rays could penetrate the mold walls as well as the fiber reinforcements and polymerize a matrix system. Matrix materials made from modified epoxy-acrylates were tailored to suitably low viscosity so that fiber wetting and adhesion could be attained.

9:20 - 9:40 Tuesday 23 September | Advanced Materials 1: New Applications
Jennifer K. Lynch, Rutgers University, USA | Electron beam processing is used to reduce time-dependent creep properties of HDPE and filled HDPE composites. Three materials systems are investigated, including neat HDPE, 30/70 % Magnesium Hydroxide/HDPE, and 30/70 % Polypropylene coated fiberglass/HDPE, and are processed using injection molding methods.

9:40 - 10:00 Tuesday 23 September | Advanced Materials 1: New Applications
Phil-Hyun Kang, KAERI, Korea | Aromatic polymers are used for heat resistant materials and are expected to be used under severe conditions such as those in space. So the radiation resistance of aromatic polymers was studied by ion irradiation. Polyimides were extensively studied and reported having excellent resistivity for gamma rays and electron beam irradiation. In this study, electron beam irradiation effects on the dynamic mechanical properties of polyimide were investigated.

11:00 - 12:30 Tuesday 23 September
Chair: Joern Meissner - Meissner Consulting GmbH, Germany

11:05 - 11:25 Tuesday 23 September | Advanced Materials 2: Facilities Processing and Equipment
Josef Mittendorfer, Mediscan GmbH&CoKG, Austria | In this paper recent advances in material qualification for industrial irradiation applications like medical device sterilisation and advanced material processing are reviewed. The paper summarizes the requirements or applicable standards like ISO 11137 and gives an overview of recent literature and guidance literature.

11:25 - 11:45 Tuesday 23 September | Advanced Materials 2: Facilities Processing and Equipment
Neil Witten, Zotefoams plc, UK | Zotefoams plc is the worlds leading manufacturer of low density, closed-cell crosslinked block foams and is recognised globally for producing the highest performance polyolefin foams. In recent years, the company has developed a new generation of low density crosslinked foams based on materials where foaming to low densities has traditionally been an insurmountable technical challenge.

11:50 - 12:00 Tuesday September 23 | Advanced Materials 2: Facilities Processing and Equipment
Jean‐Louis Bol | The Rhodotron is a widely employed high‐power industrial accelerator developed and exclusively distributed by IBA. Most early examples of the accelerator were optimized to operate at 10 MeV. A new Rhodotron configuration recently advanced produces a lower‐energy higher‐current beam dedicated for materials enhancement.

11:50 - 12:00 Tuesday 23 September | Advanced Materials 2: Facilities Processing and Equipment
Takashi Baba, NHV Corporation, Japan | Electron beam accelerator is used for material processing, medical device sterilization and other industrial applications, and it performs an essential function for some processing. In electron beam accelerator for these industrial applications energy range from several hundred keV to 10MeV and high beam current are required. Additionally high reliability, compactness and low cost are desired.

12:10 - 12:20 Tuesday 23 September | Advanced Materials 2: Facilities Processing and Equipment

Nicolay K Kuksanov, Budker Institute of Nuclear Physics, Russia | The ELV electron accelerators are DC machines purposed for wide application in various technological processes. ELV accelerators are the most popular Russian accelerators. Over 110 accelerators are operating both inside Russia and abroad.

15:30 - 17:00 Tuesday 23 September
Chair: Piotr Ulanski - Technical University of Lódz, Poland

15:35 - 16:15 Tuesday 23 September | Advanced Materials 3: Medical & Speciality
Sophie Rouif, Ionisos, France | To obtain hydrogels, two methods can be used; the first one using a chemical cross linking agent. The second method is irradiation that induces combination of free radicals.
When hydrogels are used in biomedical applications, irradiation presents several advantages: direct sterilization of the product, synthesis of a pure product, uncontaminated with ballast materials or residual toxic initiators.

15:55 - 16:15 Tuesday 23 September | Advanced Materials 3: Medical & Speciality
Orhun K Muratoglu, Massachusetts General Hospital, USA | Highly crosslinked ultra high molecular weight polyethylene (UHMWPE) has become the bearing material of choice for total hip arthroplasty over the past decade and its use in total knees is increasing. Clinical follow-up studies are showing marked reduction in the wear of UHMWPE acetabular liners in comparison with conventional, inert gas gamma sterilized UHMWPE liners, corroborating the findings of the early in vitro hip simulator studies.

16:15 - 16:35 Tuesday 23 September | Advanced Materials 3: Medical & Speciality
Giovanni Marletta, University of Catania, Italy | The need for having a breakthrough in fields relevant to health and safety like biocompatible materials, bioelectronics devices, biosensors etc., is the driving force to develop new performant methods for the controlled modification of surfaces and bulk of materials. In particular, polymers represent the material of choice for most of the desired biological applications, due to their highly specific properties, including the dynamical behaviour in presence of external stimuli and the biomimetic mechanical properties.

16:35 - 16:55 Tuesday 23 September | Advanced Materials 3: Medical & Speciality
Xavier Coqueret, Institut de Chimie Moléculaire de Reims, France | Cross-linking polymerization initiated by high energy radiation is a highly attractive technique for the fabrication of high performance composite materials. The method offers many advantages compared to conventional energy- and time-consuming thermal curing processes. Free radical and cationic polyaddition chemistries have been investigated in some details by various research groups along the last years.

8:30 - 10:30 Wednesday 24 September
Chair: George West, Steritech, Australia

8:35 - 8:55 Wednesday 24 September | Global Trading 2: Food Irradiation
Alan Green, USDA-APHIS, PPQ Plant Health Programs, USA | Since 2002, the United States Department of Agriculture has accepted irradiation as a phytosanitary treatment for imported fruits and vegetables. The regulation is based on a proven treatment system including accurate dosimetry that delivers the minimum regulatory dosage to address specified regulated pests; and adequate safeguards to protect the product against potential re-infestation prior to entry into the United States. Successful irradiation programs initiated in Thailand and India for tropical fruits received outstanding consumer support. New programs are ready for startup in Vietnam and Mexico.

8:55 - 9:15 Wednesday 24 September | Global Trading 2: Food Irradiation
Carl Blackburn, Food Standards Agency, UK |This presentation will provide a summary of the regulatory requirements for irradiating food, the rules governing approval of irradiation facilities and the importation of irradiated food. • What are the EU requirements? • Can food irradiation facilities from non-EU countries be approved to irradiate food for sale in the European Community?

9:15 - 9:30 Wednesday 24 September | Global Trading 2: Food Irradiation
Monique Lacroix, Canadian Irradiation Center, CANADA | Spice extracts under the form of essential oils were tested for their efficiency to increase the relative radiosensitivity of Listeria, Escherichia coli and Salmonella Typhi in culture media under different atmosphere conditions. The selected essential oils were tested for their ability to reduce the dose necessary to eliminate E.coli and S. Typhi in medium fat ground beef (23% fat) and Listeria in ready-to-eat carrots.

9:30 - 9:45 Wednesday 24 September | Global Trading 2: Food Irradiation
Susy Sabato, IPEN-CNEN/SP, Brazil | All regions of Brazil are potential areas for growing tropical fruits. As our country is already a great producer and exporter of tropical fruits, ionizing radiation has been subject of studies in many commodities. An important project has been carried out to increase the commercial use of gamma radiation in our country.

9:45 - 10:00 Wednesday 24 September | Global Trading 2: Food Irradiation
Maria J.A.P. Trigo, Instituto Nacional dos Recursos Biológicos, Portugal | Vegetables are an essential part of diet of people all around the world. Due to cultivate techniques and handling after harvest, these products, may contain high microbial load that can cause food borne outbreaks. The irradiation of minimally processed vegetables is an efficient way to reduce the level of microorganisms and to inhibit parasites, helping a safe global trade.

10:00 - 10:15 Wednesday 24 September | Global Trading 2: Food Irradiation
Ju-Woon Lee, Korea Atomic Energy Research Institute, Korea | It became important to establish the advanced life support system in space as the first Korean astronaut was scheduled to accomplish space missions at the International Space Station in 2008. Safety and taste of space foods are important matters to the astronaut to support life and implement experiments

11:00 - 12:30 Wednesday 24 September
Chair: Andrzej Chmielewski, INCT, Poland

11:00 - 11:15 Wednesday 24 September | Global Trading 3: Environmental Applications
Andrzej Chmielewski, Institute of Nuclear Chemistry and Technology, Poland | The electron beam flue gas treatment technology has been developed some years back I Japan, USA, Germany and Poland. The first industrial applications for coal fired boiler off-gases purification have been reported for projects in China and Poland.

11:15 - 11:30 Wednesday 24 September | Global Trading 3: Environmental Applications
Mohamad Al-Sheikhly, University of Maryland, USA | The widespread release of PCBs into the environment presents a serious problem due to their persistence and toxicity. Ionizing radiation, such as gamma rays and the high-energy electron beam, is remarkably effective in dechlorinating PCBs into biphenyls.

11:30 - 11:45 Wednesday 24 | Global trading 3: Environmental Applications
Richard Sharp, Isotron, UK | This presentation describes the use of a Tandem particle accelerator to expose candidate radioactive waste encapsulation materials to alpha radiation in order to assess their suitability for long term waste disposal. Traditional assessment methods use open, alpha‐emitting sources, requiring special handling and containment practices. This new technique offers a clean, contamination‐free alternative.

11:45 - 12:00 Wednesday 24 September | Global Trading 3: Environmental Applications
Bumsoo Han, EB TECH Co., Ltd., Korea | Textile dyeing processes consume large amount of water, steam and discharge filthy and colored wastewater. After the laboratory experiments, a pilot scale e-beam plant had constructed at Daegu Dyeing Industrial Complex (DDIC) in 1997.

11:45 - 12:00 Wednesday 24 September | Global Trading 3: Environmental Applications
Yuriy A. Zaikin, PetroBeam, Inc., USA | Radiation technologies for oil refining have been intensely developing during the last decade. At the earlier stage of this period, they were intended to application of radiation-thermal cracking to heavy feedstock difficult for processing by conventional methods. These studies resulted in efficient radiation methods for heavy oil processing.

13:30 - 15:00 Wednesday 24 September
Chair: Bob Moss - STERIS Isomedix, USA

13:30 - 15:00 Wednesday 24 September | Global Trading 4: Isotope security, logistics and supply

Lorne Green, World Nuclear Transport Institute, UK | Each day thousands of shipments of Class 7 - radioactive materials are transported on national and international routes. These consignments are vital to many aspects of modern life, from medicine and health, scientific research, and agriculture to the generation of electricity.

13:30 - 15:00 Wednesday 24 September | Global Trading 4: Isotope security, logistics and supply
Philip Robbins, REVISS Service (UK) Ltd. U.K. | The process of designing, manufacturing and validating a Type B(U) transport container starts with a specification, defined and agreed in consultation with the necessary stakeholders. The requirements of different stakeholders are frequently conflicting and the design process involves balancing each of them to a satisfactory degree.

13:30 - 15:00 Wednesday 24 September | Global Trading 4: Isotope security, logistics and supply

Peter Lambourne, REVISS Services (UK) Ltd., U.K. | Compliance with national and international regulatory requirements for the shipment of radioisotopes is fundamental to the smooth running of a large proportion of the global radiation processing industry.

13:30 - 15:00 Wednesday 24 September | Global Trading 4: Isotope security, logistics and supply
Paul Gray, MDS Nordion, Canada | The positive safety and security record of the gamma processing industry is well known and long standing. Regulations which govern us, however, continue to evolve to meet an ever changing socio-political environment.

11:00 - 12:30 Wednesday 24 September
Chair - Arne Miller, RisØ National Laboratory, Denmark

8:40 - 9:05 Wednesday 24 September | Healthcare 3: Process Monitoring

Marc F. Desrosiers, National Institute of Standards and Technology, USA | NIST developed the alanine dosimetry system in the early 1990's to replace radiochromic dye film dosimeters. Later in the decade the alanine system was firmly established as a transfer service for high-dose radiation dosimetry and an integral part of the internal calibration scheme supporting these services.

9:05 - 9:30 Wednesday 24 September | Healthcare 3: Process Monitoring
Mark Bailey, National Physical Laboratory, UK | The dose rate distribution in a MDS Nordion JS7500 60Co industrial irradiation plant has been calculated using the EGSpp Monte Carlo code. This code is a development of the established EGSnrc code developed and distributed by National Research Council of Canada.

9:30 - 9:50 Wednesday 24 September | Healthcare 3: Process Monitoring
Kevin O'Hara, Canada | Absorbed-dose calculations provide insight into the critical areas for dose mapping and routine monitoring, allowing for the optimal placement of dosimeters. Accessible, accurate and validated dose-calculation programs can be used to help optimize the radiation process and reduce the requirement for dosimetry.

9:50 - 10:10 Wednesday 24 September | Healthcare 3: Process Monitoring

Peter Veselovsky: Konnexis Inc., Canada | In an incremental carrier irradiator with product interchange located outside of the biological shield and "shuffle and dwell" source pass mechanism it is difficult to predict product mix inside the source pass at any given time. Cycle time setting is limited to a fixed time value that translates to a fixed dose per pass of around 2.5 kGy to allow processing of small product batches with varying dose requirement.

11:00 - 12:30 Wednesday 24 September
Chair - Arne Miller, RisØ National Laboratory, Denmark

11:00 - 11:25 Wednesday 24 September | Healthcare 4: Process and Technology
Dieter Bachmann, Cilag AG, Switzerland | Low-energy electron beam technologies are being used as an effective means to decontaminate materials for use in aseptic filling applications. To date, this technology has been applied most successfully to decontaminate the outer surfaces of containers housing pre-sterilized syringes used in aseptic filling isolators.

11:25 - 11:50 Wednesday 24 September | Healthcare 4: Process and Technology
Jakob Helt-Hansen,Risø National Laboratory, Denmark | Irradiation with low-energy electrons (100 - 300 keV) results in dose gradients across the thickness of the dosimeters typically used for dose measurement at these energies. This leads to different doses being measured with different thickness dosimeters irradiated at the same beam. In order to overcome this problem a new concept is introduced of correcting all measured doses to the mean dose in the first micron - Dµ.

11:50 - 12:15 Wednesday 24 September | Healthcare 4: Process and Technology
Smith, Mark, Sterigenics, USA | The standard on radiation sterilization of medical products (International Standards Organization ISO 11137-1, Sterilization of health care products - Radiation- Part 1: Requirements for the development, validation and routine control of a sterilization process of medical devices. (2006)) states, "If energy for electrons exceeds 10 MeV...the potential for induced radioactivity in product shall be assessed."

13:30 - 15:00 Wednesday 24 September
Chair: Paul Minbiole - E-BEAM Services, Inc., USA

Six experts review technology advances around the world:

13:30 - 13:40 Wednesday 24 September | Advanced Materials 4: Worldwide Panel Review
Gerhard Gielenz - Radiation & Polymer Services, Switzerland | A brief survey on the European plastics production as well as materials demand by resin type and end use segments is given.

13:40 - 13:50 Wednesday 24 September | Advanced Materials 4: Worldwide Panel Review
Lewis Parks - Sterigenics Advanced Applications, USA | The following topics will be presented, with a short discussion: • E‐beam curing is replacing some UV curing.• The US FDA clears the use of certain acrylate monomers for radiation cured coatings and adhesives for direct contact with food....

13:50 - 14:00 Wednesday 24 September | Advanced Materials 4: Worldwide Panel Review
Guozhong Wu -  Shanghai Institute of Applied Physics, China | Radiation processing has been widely applied in China mainland in food preservation and polymer processing. There are now a number of irradiation facilities for industrial use; most of them are installed in east and southeast China. According to the Chinese Association of Isotope and Radiation Processing, there are 132 Cobalt‐60 sources and 127 electron beam accelerators at the end of 2007.

14:00 - 14:10 Wednesday 24 September | Advanced Materials 4: Worldwide Panel Review
Fumio Yoshi, JAERI Japan | Three commercial products and two other products still under R&D stage, all processed by radiation technology, are reported. The products that will be introduced are hydrogel sheets irradiated by low energy accelerator as wound dressing, silicon carbide that can resist up to 1700oC and polytetrafluoroethylene crosslinked at molten state.

14:10 - 14:20 Wednesday 24 September | Advanced Materials 4: Worldwide Panel Review
V.K. Tikku - Cords Cable Industries Ltd.,India | This presentation will give an overview of the status of radiation processing in India as applied in the making of products involving advanced materials.

14:20 - 14:30 Wednesday 24 September | Advanced Materials 4: Worldwide Panel Review
Agnes Safrany - International Atomic Energy Agency (IAEA) | A brief review of the state of the art of radiation processing in the field of material sciences (including the number of irradiators, both gamma and electron accelerators) in the "Rest of the World" will be given. The "Rest of the World" will denote Africa, Part of Asia, Australia, the Middle East and South America.

Poster Sessions IMRP 2008 LondonTuesday 23 September 13:30 - 15:00
Poster Presenters will be allocated their Poster Space when they register at the Programme Registration Desk in the Hotel Lobby.

Ordered by Reference Number (Date Received).

 

Jiao, Zheng et. al., China | This paper provides a new method to product single-crystalline CdS nanorods. γ-irradiation play a key role in this process, which can accelerated formation of S2- under acidic condition (PH=3) and vinyl acetate (VAc) monomer formed pre-organized nano polymer tubules which were used as both templates and nanoreacters for the growth of CdS nanorods.

Hernández-Martínez, A. et. al., Mexico | The thermosensitive polymers have gained much attention because of their intelligent and reversible behavior in response to environmental stimuli, in particular to temperature variation. Dimethylaminoethylmethacrylate (DMAEMA) has a low critical solution temperature (LCST) close to 40 °C and a critical pH around 5, poly (ethyleneglicol) methyl ether methacrylate (PEGMEMA) can modified LCST to lower values.

Adem, E. et. al. Mexico | Hydrogels have been widely used because of their unique properties and versatile applications in medicine and biotechnology. However a serious limitation of hydrogels in many applications is the low mechanical strength of such gels when highly swollen.

D `Almeida, Maria Luiza Otero et. al., Brasil | Disinfection and sterilization by radiation is a common technique nowadays. Books and documents attacked by fungi and insects have also been treated by this process for disinfection.

ROCHA, R.M. et. al., Brazil | A process for the manufacture of SiOC ceramic foams has been for the first time developed through foaming of siloxane preceramic polymer with the electron beam radiation in air prior to the pyrolysis under an inert atmosphere. Poly(methylsilsesquioxane) (PMS) resin foams were obtained without additional foaming agent when exposed to accelerated electrons with radiation doses up to 9 MGy and dose rate of 2.8 kGy/s.

Hassanpour, S. Iran | Recycling of municipal plastic waste is often a difficult task due to the fact that this material is usually a mixture of several polymers, which makes processing more difficult and also limits the number of potential applications.

Auslender, V.L. Russia | At Budker INP SB RAS, a 5 MeV section for high-power industrial linear electron accelerator has been tested at full voltage. The accelerator operates at 176 MHz. The obtained beam pulsed power of 1.5 MW at the structure electron efficiency of 67% is close to the simulation value.

Shin, Junhwa et. al., Korea | In this study, several AgNPs were prepared in PVA solution containing various amounts of NaOAc by gamma-ray irradiation using 60Co source at various doses.

Poveda, Patricia Negrini Siqueiraet. al., Brazil | Biodegradable plastics and green plastics are the new tendency in the world. Effect of the electron beam irradiation on the tensile strength at break and elongation at break for films made of aromatic aliphatic copolyester and the blend with corn starch (Ecoflex® and Ecobras®) was reported.

Jeun, Joon-Pyo et.al. Korea | Epoxies have been used as matrices in reinforced composites, adhesives in the aerospace industry, and as surface coatings. However, the main drawback of epoxy resins is their inherent brittleness because of their highly crosslinked structure.

Kang, Phil-Hyun et. al., Korea | Silicon carbide (SiC) has important properties such as high intrinsic strength, stiffness and high temperature stability. Thus, it has been considered one of the most promising candidates for reinforcement. The use of preceramic polymers generates possibility of solving the intricacies involved to obtain new generation of ceramic materials.

J.W. Kim, et. al., Korea |  A new carbon material which has a unique surface property was made from Multi-Walled Carbon Nano Tubes (MWCNTs) using a fluorination and defluorination by electron beam irradiation. Fluorinated MWCNTs were prepared to increase the dispersion and surface modification of CNTs for composite applications.

Lee, Young-Seak et. al., Korea | In this study, surface modificated MWCNT/Epoxy composite was prepared by photo-polymerization using electron beam. Diglycidyl ether of bisphenol-A (DGEBA) was also used as epoxy resin.

Kodama, Yasko et. al., Brazil | The problem of non-biodegradable plastic waste remains a challenge due to its negative environmental impact. Poly(L-lactic acid) (PLLA) and poly(-caprolactone) (PCL) have been receiving much attention lately due to their biodegradability in human body as well as in the soil, biocompatibility, environmentally friendly and non-toxicity characteristics.

Peng, Jing et. al, China | Poly(methyl methacrylate) (PMMA) /multi-walled carbon nanotubes (MWNT) nanocomposites were synthesized via an in-situ bulk polymerization of MMA induced by gamma rays. During the gamma-induced polymerization of MMA, the conversion and average molecular weight of PMMA decreased slightly with the increase of MWNT content.

Bardakhanov, S.P. et. al., Russia | The generation of nanopowders and investigation of its properties is important problem of modern science and technologies. Special attention is focused on development of high rate methods of nanopowders production. In the paper there was investigated the possibilities of production of different nanopowders by electron beam evaporation of raw materials (both artificial and natural) under atmospheric pressure with various gases.

Park, Jong seok et. al., Korea | The objective of our investigation is to determine the basic characteristics of the pores in battery separators. We founded the optimum conditions in drawn process according to the addition of the various quantity of nucleating agent(Millad 3988).

Sohn, Joon-Yong et. al., Korea | To realize a highly safe battery, the thermal stability improvement is one way to refine battery safety. A separator that doesn't shrink will improve battery safety because this separator can keep electronic insulation between two electrodes in case of unusual heat generation.

Youn, Jong-Kyu et. al, Korea | Titanium dioxide nanoparticles were prepared by gamma ray irradiation with various doses and dose rates. SEM, TEM, XRD, and PSA indicated the prepared particles had diameters of 10~50 nm with narrow size distribution (anatase form) and photocatalytic activity to eliminate airborne contaminants.

Chung, Byung Yeoup et. al., Korea | Kapok [Ceiba pentandra (L.) Gaertn.] fiber is originated in tropical India and it is found widespread in several plantations in Southeast Asia. Owing to homogeneous hollow tube shape and hydrophobicity, the usages of this fiber are various such as fiberfill in pillows, quilts, non-woven fabric for oil spill cleanup and so on.

Choi, Jae-Hak et. al., Korea | The cage-shaped polyhedral oligomeric silsesquioxanes (POSS) have been considered very promising in combining the good properties of the ceramics and the compatibility with organic compounds of the polymers. In this study, polymer/POSS nanocomposites were prepared by radiation processing.

Choi, Jae-Hak et. al., Korea | A new surface patterning method which can create biomolecular patterns via ion irradiation-induced graft polymerization has been developed in this study. Various polymer films were irradiated through a mask with high energy ions to activate the surface for grafting.

Dondi, D. et. al., Italy | It is well established that the presence of aromatic moieties onto the chains of polyethylene can have a efficient protection effect against the high energy radiation damages. Various types of energy transfer mechanisms between the aliphatic and the aromatic components can occur: charge and excitation transfer are believed to be the most important in polyethylene, particularly if they can take place in a more effective intramolecular process.

Dondi, D. et. al., Italy | The surface chemical modification of inorganic filler particles aimed at hindering their mutual aggregation thus improving their degree of dispersion in elastomeric matrices, is a well established procedure in the tyres processing technology. In this paper the use of gamma radiations was exploited for inducing the grafting of polybutadiene olygomers onto a silica based filler.

Cleland, Marshall et. al, USA | X-rays, derived from a high current electron beam, were found to in-situ polymerize a unique class of monomers, called a Wood-Polymer-Penetrant (WPP), that were found to enter the cell walls of impregnated wood. X-rays initiated an auto-catalytic acrylic polymerization and could also penetrate thick pieces of wood.

Parvin, P. et. al., Iran | In this work, poly allyl diglycol carbonate (CR-39) samples were irradiated with 10 MeV electrons at different doses ranging from 25 kGy to 250 kGy. The result showed that cross-linking process occurs at low absorbed doses, whereas polymer degradation happens at higher doses.

Jaleh, B. et. al. Iran | In this work, polycarbonate (PC) samples were irradiated with 10 MeV electrons at different doses from 50 kGy to 500 kGy. Another samples irradiated with 60Co up to about 500kGy.

Adem, E. et. al, Mexico | Hydrogels have been widely used because of their unique properties and versatile applications in medicine and biotechnology. However a serious limitation of hydrogels in many applications is the low mechanical strength of such gels when highly swollen.

MOURA, Esperidiana A.B. et. al., Brazil | Packaging materials have been widely processed by ionizing radiation in order to improve their chemical and physical properties and also for sterilization purposes. Basically, flexible packaging manufactures apply specific radiation doses to promote cross-linking and scission of the polymeric chains to improve certain material mechanical properties.

Jaleh, B. et. al., Iran | In this work, polycarbonate (PC) samples were irradiated with 10 MeV electrons at different doses from 50 kGy to 500 kGy. Another samples irradiated with 60Co up to about 500kGy.

Parvin, P. et. al., Iran | In this work, poly allyl diglycol carbonate (CR-39) samples were irradiated with 10 MeV electrons at different doses ranging from 25 kGy to 250 kGy.

Sáfrány, Ágnes et. al., Austria | Porous crosslinked polymers in a variety of shape and size, from spherical particles to monoliths are successfully being used in applications ranging from separation and purification, diagnostics, combinatorial chemistry to peptide synthesis.

Hongyan, Yu et. al., China | The demand for the proton exchange membrane (PEM) used as a key component of the proton exchange membrane fuel cell (PEMFC), capable of withstanding temperatures > 100ºC and cost-competitive, has prompted this study. The PEM was prepared by radiation-induced grafting of styrene onto porous Polytetrafluoroethylene (PTFE) films using simultaneous irradiation followed by sulfonation reaction. Impregnation of nano-silica into PTFE matrix was carried out using sol-gel method in the radiation grafting process.

RZYBYTNIAK, GRAŻYNA et. al., Poland | The mutual radiation grafting of acrylic acid (AAc) onto polyethylene (PE), polypropylene (PP) and polystyrene (PS) films was performed with gamma radiation. Contribution of the processes initiated by active sites situated in the matrices was estimated and compared with grafting induced by intermediates generated initially in the solution.

Sharp, R.E., United Kingdom | This presentation describes the use of a Tandem particle accelerator to expose candidate radioactive waste encapsulation materials to alpha radiation in order to assess their suitability for long term waste disposal.

Poster Sessions IMRP 2008 London Tuesday 23 September 13:30 - 15:00
Poster Presenters will be allocated their Poster Space when they register at the Programme Registration Desk in the Hotel Lobby.

Ordered by Reference Number (Date Received).

Fairand, Barry P. USA | Pharmaceuticals as a class are more sensitive to radiation than medical devices. Radiation sterilization of drug products at low doses to achieve an SAL of 10-6 would be beneficial. A method was developed for radiation sterilization of extremely low bioburden products at doses much less than 10 kGy. The method does not require the sacrifice of a large number of test samples. One potential application would be sterilization of aseptically manufactured pharmaceutical products following a fill/finish operation.

Lundahl, Brad USA | A poster presentation shall address the impact of irradiation environment parameters, specifically dose rate and temperature of gamma irradiation on the functional characteristics of several selected ompounds. As a secondary permutation, the compounds will be presented both a liquid and dry formats thus providing a 2 x 2 permutation matrix of irradiation environmental formats and compound formats.

Farah, K. et. al., Tunisia | During the last decades sugar was considered as a promising radiation sensitive material and used as a radiation detector for high level dosimetry by applying different analytical methods especially for the solid state/EPR dosimetry. This method is high cost and suggested only for reference dosimetry.

Jeong, Il Yun et. al., Korea | Skin contact allergy (SCA) is not life-threatening, but a large number of people suffer from the reactions caused by various kinds of chemicals and products. Thus, radiation technology was employed to improve the traditional herb addition method on the SCA reduction of Rhus verniciflua sap. R. verniciflua has traditionally been used as an herbal medicine plant, but its urushiol derivatives are known as a major allergen for the SCA.

GARCIA, Tristan et. al., France | The Laboratoire National Henri Becquerel uses ESR spectrometry to ensure high dose traceability (100 Gy - 100 000 Gy) for industrial applications involving radiation processing. Furthermore, free radical detection by ESR spectrometry could provide helpful information on drugs stability for pharmaceutics industry. Indeed, free radicals created during irradiations induce chemical reactions.

Garcia, R. et. al., USA | Response functions for Radiachromic Film Dosimeters used to measure delivered dose in Electron Beam processing have historically been developed in-situ.

Kim, Jae-Hun et. al., Korea | Doxorubicin (DOX) is widely used as an anticancer agent, but has given some problems with the immunological toxicity to patients during chemotherapy. The present study was conducted to evaluate the effect of gamma irradiation on the immunological toxicity and cytotoxicity of DOX.

Byun, Eui-Baek et. al., Korea | The physicochemical properties of proteins can be altered by irradiation. But, it is rarely that the researches on the functional properties of irradiated proteins have been reported. Fibroin is a fibrous protein derived from silkworm Bombyx mori and has been suggested as a biomaterial for biomedical applications.

Sung, Nak-Yun et. al, Korea | β-glucans are structural cell wall polymers of many microorganisms and cereals which possess immunomodulatory properties and have been used in the food, cosmetic and medical industry. In our previous study, β-glucan was depolymerized by gamma irradiation and thus lead to improve the solubility and viscosity.

Takehisa, Masaaki et. al., Japan | The measurable dose range of 0.1 to 50 kGy can be covered using different type of conventional PMMA dosimeters. Novel PMMA dosimeter (Radix W), which is manufactured based on chemical cross linkage, was developed to cover wider dynamic dose range of 2 to 150 kGy employing different readout wavelengths of 280nm and 320nm for dose range up to 10 kGy and higher, respectively.

Boardman, Jeffery et. al., U.K. | Jeffery Boardman (Amos Ltd) has developed very robust, cost effective and simple to operate radiation detectors over the past 5 years.

FONTCUBERTA, Philippe et. al., France | A self-shielded sterilisation system using electron beam has been developed for complete and/or terminal sterilisation of products. The system contains a medium energy accelerator (5 MeV, 5 kW), conveyor and ancillary equipment built inside a stainless steel housing designed for installation in a production line.

Sharpe, P.H.G., et. al., U.K, | Published data on the effect of irradiation temperature on the response of alanine dosimeters does not extend to the temperatures that may be experienced in high dose industrial irradiations, particularly in the case of electron beams. We describe here results of the irradiation of alanine dosimeters at temperatures up to 80 ºC and doses up to 100 kGy.

Lim, Youn-Mook et. al., Korea | Atopic dermatitis (AD) is a familial and chronic inflammatory pruritic skin disease that affects a large number of children and adults in industrialized countries. It is known that one of prominent features of AD and chronic pruritus is partially due to the histamine released from mast cell. In this work, hydrogel patches with natural herbal extracts were prepared by "a freezing and a thawing", and a gamma irradiation.

Gwon, Hui-Jeong et. al., Korea | The objective of the present study was to investigate the enhanced adsorption property of a PVA/glycerine hydrogels, as compared to the previously prepared hydrogels with a k-carrageenan for a wound dressing, which were prepared by using a gamma irradiation.

Youn, Min-Ho et. al., Korea | In order to synthesize β-tricalcium phosphate (β-TCP), a mixture of Ca(OH)2 and H3PO4 was exposed to an electron beam.

Yun, Hyejeong et. al., Korea | A series of repeated exposures to γ-irradiation with intervening outgrowth of survivors was used to develop radioresistant cultures of Moraxella osloensis, which have been recognized as potential pathogenic microorganisim.

Biju, K. et. al., India | Source-product irradiation geometry of radiation processing facilities are required to be designed to deliver prescribed dose to the product with an acceptable ‘dose uniformity ratio'. This paper presents the Monte Carlo study of the distribution of energy and dose in the product stack of standard size proposed by a private sector entrepreneur in India at the design stage.

Peimel-Stuglik, Zofia et. al., Poland | According to ISO/ASTM 51607:2004(E) the absorbed dose range of this system is between 1 and 105Gy, the dose rate is up to 5x107 Gy s-1 and the acceptable radiation energy for photons and electrons is between 0,1 and 28 MeV. 

Peimel-Stuglik, Zofia et. al., Poland |  It is commonly accepted that technological dosimeters should be cheap, non-toxic and with energy absorption characteristics similar as for organic matter. A polycrystalline sucrose (saccharose, C12H22O11) and also water solutions of sucrose fulfill all these demands.

Kairiyama, E., et. al., Argentina | Bioburden testing is a fundamental and important tool to evaluate the microbial quality of tissue allograph previous to submit final sterilisation. Frozen preserved morsellised bones of 77 batches from 3 tissue banks were analyzed to define the sterilisation. Even though they are procured and processed carefully, microbial contaminations occur. So a final sterilisation is necessary to reach a SAL of 10-6.

Kairiyama, E., et. al. Argentina | Skin bank facility is indispensable for burn care. In Argentina, the first human skin bank was established in 1989; later, 2 more banks were established in 1998 and 2002. The 3 banks preserve their processed cadaveric skin in frozen condition and use final gamma radiation sterilization since 1993.

Horak, Celina et. al, Argentina | The radiation sterilization has been carried out in our institution since 1968, using a Gammacell 220 (Northion). In 1970, a Cobalt 60 radiation facility was built with national technology.

Tabassum, Safia et. al. Pakistan | Spectrophotometric evaluation of aqueous solution of Acid Fuchsin (AF) as possible chemical dosimeter was carried out. A 5.0 x 10-5 M solution of AF was irradiated by gamma rays by a cobalt-60 radiation source and absorption spectra before irradiation and after irradiation was recorded.

Membership of RPSMUG | Since 2001 the Radiation Process Simulation and Modeling User Group (RPSMUG) has actively sought benchmark simulations and measurements that would provide both scientific and industrial processing end-users with a platform for comparison of mathematical models and simulations to photon and electron-based irradiation systems.

Murphy, M.K. et. al., USA | This paper describes performance testing results for the infrared fluorescence component of the Sunna Model γ dosimeter.

Desrosiers, M.F. et. al., USA | Dosimetric quality control plays a central role in the routine operation of a radiation processing facility. It is important that this dosimetry be suitably accurate and traceable to a national primary standard. The best and most versatile transfer dosimetry system is based on Electron Paramagnetic Resonance (EPR) measurements of the amino acid alanine.

Portugal, Luis et. al. | In December 2003 the irradiator of the Portuguese 60Co irradiation facility, UTR, was replenished. Eighteen new sources were loaded and the older ones (156) were rearranged. The result was an irradiator with about 10.2 PBq of total activity. The purpose of this work is to perform dosimetric studies inside the irradiation room of a 60Co irradiation facility, particularly, the flux and energy deposition distributions.

Kaluska, I. et. al., Poland | Investigation of boundary anomalies for an absorbed dose of an electron beam (EB) in multi-layer targets was carried out both by computer simulation and with film dosimetry. Multi-layer target in form of stack consists of a set of plates made of an arbitrary materials interleaved with dosimetric films with/without packing box was irradiated with scanned 10 MeV EB on moving conveyer.

Kaluska, I. et. al., Poland | Authors have developed the computer technology for simulation of problem tasks in radiation sterilization process in accordance with Method 1, Standard ISO 11137. The technology was realized on the base of the RT-Office modules for modeling by Monte Carlo method of an absorbed dose in an irradiated heterogeneous targets with electron beam (EB), X-ray and gamma-ray and specialized software ModeSAL.

Kaluska, Iwona et. al. Poland | Radiation sterilization facility to be recognized on the market as a reliable organization should established a complete quality management system.

Desrosiers, M.F., et. al., USA | As the response of all high dose range dosimeters are temperature dependent, the estimation of irradiation temperature and the subsequent correction via the temperature coefficient can be a significant source of error in industrial dosimetry. To date, NIST publications of alanine dosimeter temperature coefficient studies have not exceeded 50 °C for the irradiation temperature.

Poster Sessions IMRP 2008 London Tuesday 23 September 13:30 - 15:00
Poster Presenters will be allocated their Poster Space when they register at the Programme Registration Desk in the Hotel Lobby.

Ordered by Reference Number (Date Received).

Wu, Minghong et. al. China | In this paper electron beam irradiation treatment technique were used to treat active violet K-3R present in the effluent. An effort is made to decolorize textile effluents at near 15 kGy for suitable discharge of wastewater.

Lee M.J., et. al., Korea | Concentration of Poly Chlorinated Biphenyl(PCBs) contained in waste insulating oil should be reduced to less than 2 ppm according to environmental regulation in Korea. Electron beam irradiation was applied to dechlorination of PCBs and dechlorinated Cl ion was separated into water by water washing method. Electron beam accelerator with 2.0 MeV and 100 kW was used.

Chasovskih A.V., et. al | During over a century the systems of municipal water supply have used various methods of disinfection of water. However, even now there is still a risk of diseases connected with the use by the population of potable water,

Duarte, C L., et. al., Brazil | This paper is part of the project with the objective to evaluate pesticides degradation for decontamination of commercial polymeric packing of high-density polyethylene (HDPE), used in agriculture. The herbicide used to this study was Ametryne (commercial name, Gesapax 500), commonly used on field crops and on corn and commercialized since 1975.

Duarte, C. L., et. al., Brazil | Under normal conditions Brazil annually produces and processes more than 300 million metric tons of sugarcane, that corresponds a quarter of the 1300 million tons grown worldwide in more than 100 countries. The Brazilian sugar cane sector gross annual income of US$ 10 billion represents around 2% of the Gross National Product.

Joung, Pil-Mun et. al., Korea | Poliovirus is a recognized surrogate for norovirus, pathogen in water and food, due to the structural and genetic similarity. Although radiation sensitivity of poliovirus in water or media had been reported, there was no research in food model such as shellfish.

Wieland, Patricia, Brazil | Although feasibility studies indicate that industrial irradiation plants are a great business that pays off in few years, some initiatives fail due to unexpected reasons. In Brazil, from nine industrial irradiation plants for medical sterilization purposes, only four are in operation.

Oh Sejo, et. al. Korea | Peanut (PN) allergy is one of the most serious forms of IgE-mediated food hypersensitivity, and gamma irradiation has been applied widely for the preservation of food.

Jung, Hee-Jin et. al., Korea | The aim of the present work was to identify products obtained from genistein by ionizing radiation and to enhance the antioxidant properties of genistein through radiation-induced transformation

CHOI, Tae Beom et. al., Korea | Isoflavones have biological activities in human disease such as cancers, osteoporosis, heart disease and postmenopausal symptom. Especially, isoflavones have been used as a functional food for woman patient with osteoporosis and postmenopausal symptom because its chemical structure is similar to that of the female hormone, estrogen.

Futatsukawa, Shoji et. al., Japan | Japan Radioisotope Association (JRIA) supplies radioisotopes (RI), not only sealed RI but also unsealed RI including radiopharmaceuticals, for users all over Japan. The Japanese user orders RI from JRIA. RI produced by foreign manufacture or domestic manufacture is supplied to user through JRIA.

YANAGISAWA, Kazuaki et. al., Japan | Our economic study performed in 1997 revealed that the use of radiological technology in medicine was tended to spread. A reimbursement of medicine was about 10b$ (billion dollars) corresponding to about 4% of the national health expenditures (240b$) or to an average expenditure of 1,900$ a year for the Japanese.

Yuan, Liyong et. al., China | Room-temperature ionic liquids are currently being assessed as next generation diluents for extractions in the nuclear fuel cycle. Influence of radiation on ionic liquid-based extraction systems is very important for their practical applications.

Hongyan, YU et. al., China | The demand for the proton exchange membrane (PEM) used as a key component of the proton exchange membrane fuel cell (PEMFC), capable of withstanding temperatures > 100ºC and cost-competitive, has prompted this study. The PEM was prepared by radiation-induced grafting of styrene onto porous Polytetrafluoroethylene (PTFE) films using simultaneous irradiation followed by sulfonation reaction.

Cho, Jae-Young e. al., Korea | Global attention to the increasing levels of biohazardous pollutants reaching water, air and soil has led to the necessity of developing new alternative technologies devoted to pollutants degradation. The ability of ionizing radiation is to convert non-biodegradable substances into more readily degradable ones.

Cleland, Marshall et. al. USA | Cellulose is the major structural component of wood and plant fibers and is the most abundant polymer synthesized by nature. Despite this great abundance, cellulosic biomass has seen limited application outside of the paper industry.

Herer, Arnold et. al., Belgium | Fifteen years after its industrialization and commercial launch, the CW technology has evolved with new features and capabilities.

Khan, Hasan M. et. al., Pakistan | A number of environmental problems have emerged as a result of rapid Industrialization, such as release of toxic metals and other toxic organic and inorganic compounds to the environment. Rapid expansion of leather related industries in Pakistan have resulted in considerable environmental problems and effluents from processing of both domestic and imported hides and skins have increased pollution to alarming levels.

Fuochi, P.G., et. al., Italy | A bipolar transistor, previuosly investigated as a possible radiation dosimeter and tested under industrial irradiation conditions in high-activity gamma and high energy, high-power electron beam facilities has been subjected to stability test in order to improve its performances.

Fuochi, P.G. et. al., Italy | The electron beam energy device, previously developed and tested under standard laboratory conditions using electron beams having energy in the range of 4-12 MeV, has now been tested under industrial irradiation conditions in high-energy, high-power electron beam facilities.

Hristova-Tranteeva, M.G. et. al., Bulgaria | A self-shielded gamma irradiator has been designed and manufactured in Bulgaria by Gitava LTD for scientific research of gamma ray effects and their practical application on different materials.

Farah, K. et. al., Tunisia | In some irradiation facilities, dosimeters may receive their total absorbed dose in two or more absorbed-dose increments.

Bhatti, Ijaz A. et. al., Pakistan | The effect of gamma radiation on the dyeing of cotton with extract of turmeric (Curcuma longa L.) powder has been investigated. The cotton and turmeric powder were irradiated to absorbed doses of 1,2,3,4 and 6 kGy using Co-60 gamma irradiator.

Sun, Yongxia Su et. al., Poland | Chloroethylenes (vinyl choride (VC), dichloroethylene(DCE), trichloethylne(TCE), tetrachloroethylene(PCE)) emitted into atmosphere from various industrial waste off -gases cause severe environmental problem. Chlorinated ethylenes destruction in air using electron beam (EB) technology was investigated experimentally by many researchers.

Sun, Yongxia et.al., Poland | The volatile organic compounds destruction from the simulated waste combustion process was studied in this work. The simulated off-gases was prepared by combustion of Polish light oil with air and the EB irradiation was carried out at ILU-6 accelerator, Qualitative and quantitative analysis of organic compounds from off-gases and their by-products formed after EB-irradiation were carried out by using a GC-MS.

Borrely, Sueli Ivone et. al., Brazil | The proposed study aimed the color of effluents and the biological effects as well. Color and toxicity removal was performed for dying water solutions and for two kinds of real effluent: the first from textile industry and the second from manufacture of dyes. The radiation processing was applied with double purposes to reduce biological effects and color.

ZIMEK, Zbigniew et. al., Poland | Upgrading of radiation facility located at Institute of Nuclear Chemistry and Technology in Warsaw has been initiated towards higher technical and economical effectiveness, better operational characteristics suitable for radiation processing and research programs in order to promote in Poland the radiation technologies for sterilzation medical devices and tissue grafts as well as food product hygenization and other radiation processes where high energy electrons are required.

Lee, Byung Cheol et. al., Korea | KAERI has built a high power electron beam user facility for the development of radiation processes. The facility provides users from universities, research institutes, and industries with electron beams having energies from 0.1 MeV to 10 MeV

Han, Bumsoo et. al., Korea | The sludge resulting from municipal wastewater treatment is usually in the form of a liquid or semisolid liquid, and can be used as a soil conditioner. However, it contains bacteria, viruses and parasites and should be disinfected prior to any such use.

Masefield, J. et. al., USA | Unfounded concerns exist about industrial cobalt-60 sources being stolen, lost, or abandoned. Implementation of many security measures since September 11, 2001 protects against the theft of cobalt-60 sources. The industry uses unique serial numbers to perform "cradle to grave" tracking of the cobalt-60 sources. And regulatory changes require owners of irradiators to provide substantial upfront financial guarantees to cover anticipated disposal costs in the unlikely event an owner abandons their sources.

Poster Sessions IMRP 2008 London Tuesday 23 September 13:30 - 15:00
Poster Presenters will be allocated their Poster Space when they register at the Programme Registration Desk in the Hotel Lobby.

Ordered by Reference Number (Date Received).

Caillet, Stéphane et. al., Canada | The study was carried out to evaluate the effects of gamma-irradiation and oregano essential oil alone or in combination on murein composition of Listeria monocytogenes and E. coli O157H7 and on the intracellular and extracellular concentration of ATP.

Kameya, H. et. al., Japan | Agaricus (Agaricus Blazei Murill) is one of the popular crude drugs in far-east countries. The crude drugs originating from natural raw products are easy to be contaminated by microorganism. Radiation method has been introduced as a sterilization technology for crude drugs. ESR has been used for the detection of radicals in irradiated drugs.

Sabato, S.F. et. al., Brazil | Brazil is a great producer of tropical fruits including mangoes. Among several purposes gamma radiation can be applied as phytosanitary treatment. This is well studied in scientific papers and more recently demonstrated through commercial advances like bilateral protocols established between India and USA. T

Park, Yong Dae et. al., Korea | Ionizing treatments were applied at 10, 20 and 50 kGy to Nelumbo nucifera extract in order to assess the effect of a gamma-irradiation on the radical scavenging activities, total phenolic content, and color characteristic. Recent studies have evaluated that the Antioxidant activity of N. nucifera using in vitro and in vivo models.

Harder, Marcia Nalesso Costa et. al., Brazil | The kiwi (Actinidia deliciosa) is an exotic fruit that pertaining to the Actinidaceae family. Possesses high nutritional value, being rich mainly in vitamin C and fibers, calcium, iron and phosphorus, what turns it a good nutritious option, presenting an important associated attribute the quality of the fruits and the flavor, what be comes it a fruit with great acceptance in the consuming markets, mainly children.

Ukai, Mitsuko et. al. | The radical properties of pasteurized pepper were investigated by means of CW X-band ESR spectroscopy. Pasteurization process was done by gamma ray irradiation or steam. There were three radicals in the specimens before and after pasteurization. T

Stahl, M. Germany | Seeds (e.g. cereal grains) are treated with low (<300 keV) and high energy electrons (10 MeV) for decontamination of phytopathogenic, spoilage organisms and respectively disinfestation. This treatment is an effective and environmentally friendly alternative to the common method of chemical seed dressing or disinfestation

Bera, A. et. al. Brazil | Honey is one of the most complex substances produced by bees, mainly from the nectar of flowers. The gamma radiation is a technique used to decrease the number of microbiological problems and increase the shelf life of certain products, as well as their safety levels. The objective of this study was to verify the effect of gamma radiation with source of cobalto-60 (10kGy) in some parameters used in honey quality control

Kim, B. et. al. Korea | The use of salted and seasoned short-necked clam (Tapes philippinarum; SNC) has been growing not only for a traditional side dish but for additives of different foods. Recently, industry looks for a technology applicable to enhance storage stability for SNC.

Liu, X.D. et al., Korea | Irradiation of shell egg was already implemented commercially but its changes of physicochemical and functional properties were not well informed. Therefore, fresh eggs were obtained and coated with 2% chitosan solution (pH 5.0) as an antimicrobial and irradiated at 0.5, 1.0, 1.5 and 2.0 kGy.

Park, Jin-Gyu et. al., Korea | This study was conducted to compare the effects of radiation types, gamma ray (GR) and electron beam (EB), in same absorbed doses on food qualities using beef patty as a model food.

Lee, Ju-Woon et. al. Korea | Children suffered from leukemia want to eat delicious dishes, such as cake and ice cream. However, it is very difficult to serve these foods to immune-compromised patients without application of any adequate sanitary measures. This study was conducted to evaluate application of this technology to frozen ready-to-eat food, ice cream.

Byun, Myung-Woo et.al, Korea | Since the first irradiated food was approved and commercialized in 1987, most of Korean still does not accept the irradiated food until now.

Kim, Hyun-Joo et. al., Korea | Although the byproducts from fishery industry had many nutrients, it is being wasted or only used as bacteria media. In this study, the effect of a gamma irradiation on the cooking drips of Thunnus thynnus (CDT) were investigate to examine the possible use of the by-product from Tuna processing as a functional material for food and cosmetic composition

Kim, Jae-Kyung et. al., Korea | Tamarind (Tamarindus indica L) seed has been extensively used for various processed foods as a swelling agent or stabilizer in the food industry. The present investigation was carried out to compare extraction yield, morphological characteristics and antioxidant activities of Tarmarind seed polysaccharides (TSP) from gamma and electron beam irradiated tamarind seed.

Choi Jong-il et. al., Korea | Carboxymethylcellulose (CMC) is used for a variety of applications in a number of industries, including the food, personal care, pharmaceutical, oilfield and paper industries due to its superior properties of high viscosity in a low concentration. In this study, the difference between a gamma ray (GR) irradiation from Co-60 with 490 kCi and an electron beam (EB) irradiation with 10 MeV Energy on the viscosity change in CMC solution was compared.

Srinivasana, Periasamy et. al., Korea | Glycowithanolide is an active component in Withania somnifera (WS) known as Indian ginseng, for the treatment to tumors, inflammation, arthritis, asthma, and hypertension. The current investigation was carried out to study the effect of electron beam (EB) and gamma ray (GR) irradiation on the antioxidant characteristics of extracted glycowithanolide. In this study, the WS dry root was powdered and irradiated.

TAIPINA, Magda S. et. al., Brazil | Pecan nuts (Carya illinoensis) were treated with gamma irradiation and evaluated for changes in vitamin E content and sensory properties. Radiation dosages were 0.0, 1.0 and 3.0kGy, dose rate varied between 4.5 and 3.5kGy/h.

Boniglia, Concetta et. al. Italy | Community legislation concerning food irradiation, states that any treated food or food ingredient, must be labelled with the word "irradiated" and that every year each Member State has to carry out analytical checks to enforce correct labelling.

Todoriki, Setsuko et. al. Japan | With the increasing consumption of fresh produce, the presence of L. monocytogenes is of increasing concern in produce because of its likely association with foodborne illness. Ionizing radiation is an effective non-thermal means for eliminating pathogenic bacteria in fresh produce; however, the effect of ionizing irradiation on the allergenic properties of host commodities is still unknown. This study was designed to determine the effective dose of gamma-irradiation in eliminating L. monocytogenes on whole cherry tomatoes and to see the effect of gamma-irradiation on the allergenic properties of tomato proteins.

Imamura, Taro et. al., Japan | Soft electrons (low-energy electrons) have been reported to effectively disinfest grains contaminated with stored-product insects. In this study, brown rice grains infested with different ages of the maize weevil, Sitophilus zeamais Motschulsky, were exposed to soft electrons.

D'Oca M.C., et. al. Italy | Food safety can be improved using ionizing radiation to reduce food spoilage and to extend its shelf life. The gas chromatography/mass spectrometry (GC/MS) has been validated by the European Community as a powerful method to identify irradiated food containing fat.

Debiazzi, R.G., et. al. Brazil | Between the options of supplies derived from poultry beef, turkey meat has shown an increase on consumption, due to the global healthy interest about diet.

Salum, D.C. et. al., Brazil | In order to protect food from pathogenic microorganisms as well as increase its shelf life while keeping sensorial properties (e.g. odor and taste), once the latter are one of the main properties required by spice buyers, it is necessary to analyze volatile formation from irradiation of food herbs.

Mangiacotti M. et. al., Italy | Montella chestnut is a typical Italian chestnut variety recognized as a PGI (Protected Geographical Indication) product and widely used in confectionery industry. Unfortunately, due to the insects and the natural sprouting, a considerable amount of the product is normally lost during the storage period.

Silva, P. et. al. Brazil | The presence of high quantity of aflatoxin in pistachio (Pistacia vera L.) is a serious health problem in the world. The contamination of the pistachio is due to the traditional practice of harvesting, transportation and storage used by producers that increases the likelihood of developing fungal and the production of aflatoxin.

Furgeri, C. et. al., Brazil | The radiation food processing has been demonstrating great effectiveness in the combat of pathogenic agents while little compromising nutritional value and sensorial properties of foods. The maté (Ilex paraguariensis), widely consumed product in South America, generally in the form of infusions with hot water or cold, calls of chimarrão or tererê, it is cited in literature as one of the best sources phenolic compounds.

Furuta, M., Japan | An irradiation detection method using the difference of the radiation sensitivity of the heat-treated microorganisms was developed as one of the microbiological detection methods of the irradiated foods.This detection method is based on the difference of the viable cell count before and after heat-treatment (70℃ and 10 minutes).
The verification by collaborative blind trial of this method was done by eight inspecting agencies in Japan.

Kitai, S. et al., Japan | Change of thermoluminescence emitted from irradiated paprika powder was monitored for 6 months after irradiation. The samples were irradiated with 60Co gamma rays at 1, 5, and 10 kGy and stored under various temperatures and humidities. As a result, 10-kGy irradiation was enough to achieve the decontamination level required by Japanese food hygiene law.

Kim, Dongho et. al, Korea | Hydrated feed promote the growth performance and shorten the feeding time of fish by increasing the efficiency of digestion. However, the shelf-life of hydrated feed is serious concern because of its relatively higher water content. Therefore, a radiation sterilization was applied to improve the shelf-life and microbiological quality of hydrated feed for fish.

Kwona, J.H. et al., Korea | Transportation trials were performed in a laboratory scale for gamma-irradiated red ginseng powder from Korea to the United States to evaluate its quality properties. Irradiated samples (2.4 kg) in commercial bottles (60 g/bottle) were sent to Iowa State University via air- (10 days) and sea-cargos (50 days), and analyzed for their microbiological, physicochemical, and sensory properties.

Wajea, C. et al., Korea | The comparative effects of steaming and gamma irradiation on the microbiological and physicochemical properties of dried red pepper were evaluated during post-treatment storage.

Wajea, C. et al. Korea | The effects of garlic and onion on the microbiological (total aerobic bacteria and coli form) and physicochemical (Hunter's color, pH, lipid oxidation, and sensory attributes) properties of irradiated and non-irradiated ground beef patty (30 g) were evaluated.

Chung Hyung-Wook et al., Korea | Photostimulated luminescence (PSL)-Thermoluminescence (TL) combined analysis was applied to detect whether food was irradiated or not.

Khan, Ashfaq A. et al., Pakistan | The samples from seven types of the whole pulses (green lentils, red lentils, yellow lentils, chickpeas, green peas, cowpeas and yellow peas) and three types of grams (black grams, red grams and white grams) have been investigated for the identification of radiation treatment.

Perez, J. et al. Argentina | Argentina produces around 2.000.000.000 Tons/year of pip fruits. Apples and pears are produced mainly in the Patagonia region; the 80% are exported as fresh fruit. Cydia pomonella is a quarantine pest in pip fruits.A dose of 200 Gy prevents adult emergence (Mansur, 2003 and local unpublished results). Pilot irradiation process was carried out with commercial packaged apples and pears.

Horak, Celina et al., Argentina | The purpose of this work was to evaluate if it is possible to identify the irradiated apples for phytosanitary purposes from the others that were not. Also, the possibility to estimate the absorbed dose was evaluated.

Gryczka, U. et al. Poland | The irradiation has been found as physical tool for chitosan degradation. In this work degradation with gamma rays and e-beam was investigated. Powder chitosan samples were irradiated with gamma and e-beam under vacuum and in air in the dose range 30-300 kGy. The effects of the different irradiation conditions on the molecular weights and the chemical structures of the polymer were investigated.

Solimana et al., Egypt | Zein, a predominant corn protein, is an alcohol-soluble protein extracted from corn and is characterized by unique film forming properties. The characteristic brittleness of zein diminishes its usefulness as a structural material. Our objectives were to study the effect of γ-irradiation on improving the mechanical and water barrier properties of the zein films.

Raouf Mbarki et. al, Tunisia | There is an increasing consumer demand for high quality, minimally processed, additive-free and microbiologically safe foods. The future application of irradiation to the seafood industry is developing. In order to investigate the feasibility of using gamma irradiation in the fish and seafood industry, questionnaires were distributed to the managers of 25 fish exporting companies.

Sung-Lye Shim, et. al., Korea | The study was carried out to find the effect of γ-irradiation on contents of volatile flavor compounds from medicinal herb, Paeoniae Radix (Paenia albiflora Pallas var. trichocarpa Bunge). The volatile organic compounds of control, 1, 3, 5 and 10 kGy irradiated samples were extracted by simultaneous steam distillation and extraction (SDE) method and analyzed by gas chromatograph-mass spectrometer.