The Experts below are selected from a list of 252 Experts worldwide ranked by ideXlab platform
Marc F Desrosiers - One of the best experts on this subject based on the ideXlab platform.
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supplementary comparison ccri i s2 of standards for absorbed dose to water in 60 co gamma Radiation at Radiation Processing dose levels
Metrologia, 2011Co-Authors: D T Burns, A. Miller, Marc F Desrosiers, P J Allisyroberts, P H G Sharpe, M Pimpinella, V Lourenco, Y L Zhang, V Generalova, V SochorAbstract:Eight national standards for absorbed dose to water in 60Co gamma Radiation at the dose levels used in Radiation Processing have been compared over the range from 1 kGy to 30 kGy using the alanine dosimeters of the NIST and the NPL as the transfer dosimeters. The comparison was organized by the Bureau International des Poids et Mesures, who also participated at the lowest dose level using their radiotherapy-level standard for the same quantity. The national standards are in general agreement within the standard uncertainties, which are in the range from 1 to 2 parts in 102. Evidence of a dose rate effect is presented and discussed briefly. Main text. To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/. The final report has been peer-reviewed and approved for publication by the CCRI Section I, according to the provisions of the CIPM Mutual Recognition Arrangement (MRA).
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dosimetry systems for Radiation Processing
Radiation Physics and Chemistry, 1995Co-Authors: William L Mclaughlin, Marc F DesrosiersAbstract:Abstract Dosimetry serves important functions in Radiation Processing, where large absorbed doses and dose rates from photon and electron sources have to be measured with reasonable accuracy. Proven dosimetry systems are widely used to perform Radiation measurements in development of new processes, validation, qualification, and verification (quality control) of established processes and archival documentation of day-to-day and plant-to-plant Processing uniformity. Proper calibration and traceability of routine dosimetry systems to standards are crucial to the success of many large-volume Radiation processes. Recent innovations and advances in performance of systems that enhance Radiation measurement assurance and process diagnostics include dosemapping media (new radiochromic film and solutions), optical waveguide systems for food irRadiation, solid-state devices for real-time and passive dosimetry over wide dose-rate and dose ranges, and improved analytical instruments and data acquisition.
Alexei K Pikaev - One of the best experts on this subject based on the ideXlab platform.
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Current status of Radiation Processing in the CIS
Radiation Physics and Chemistry, 1995Co-Authors: Alexei K PikaevAbstract:Abstract The paper is a brief review of current status of Radiation Processing in the CIS. The main attention is paid to the most developing areas of Radiation Processing in the region: Radiation sterilization of medical products, Radiation curing, environmental applications, and manufacture of electron accelerators.
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Current state of Radiation Processing
Russian Chemical Reviews, 1995Co-Authors: Alexei K PikaevAbstract:A review of common trends in the development of modern Radiation Processing is presented. The sources of ionising Radiation and the most important processes practically induced under the influence of this Radiation are discussed. It is shown that Radiation methods can be used successfully for the modification of materials, for the sterilisation of medical articles, for the solution of ecological problems, for treatment of food products, in Radiation engineering, etc. Special attention is paid to processes at the pilot plant and industrial scales. The bibliography includes 548 references.
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applied Radiation chemistry Radiation Processing
1993Co-Authors: Alexei K Pikaev, R J WoodsAbstract:Radiation: Sources and Characteristics. Interaction of Radiation with Matter. Radiation Dosimetry. Radiolysis Intermediates. Selected Topics in Radiation Chemistry. Radiation Synthesis. Polymerization. Polymer Modification. Radiation Sterilization of Medical Products. Radiation Treatment of Food. Waste Management. Other Applications. Appendix. Index.
R J Woods - One of the best experts on this subject based on the ideXlab platform.
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Radiation Processing: Current Status and Future Possibilities
Journal of Radioanalytical and Nuclear Chemistry, 2020Co-Authors: R J WoodsAbstract:Radiation Processing developed following the Second World War and employs gamma- or electron-irRadiation to process polymers, cure alkene-based inks and coatings, sterilize medical supplies, irradiate food, and manage wastes. The current status of these applications is described with the probable direction of future developments.
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applied Radiation chemistry Radiation Processing
1993Co-Authors: Alexei K Pikaev, R J WoodsAbstract:Radiation: Sources and Characteristics. Interaction of Radiation with Matter. Radiation Dosimetry. Radiolysis Intermediates. Selected Topics in Radiation Chemistry. Radiation Synthesis. Polymerization. Polymer Modification. Radiation Sterilization of Medical Products. Radiation Treatment of Food. Waste Management. Other Applications. Appendix. Index.
Carlos G. Silveira - One of the best experts on this subject based on the ideXlab platform.
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electron beam accelerators trends in Radiation Processing technology for industrial and environmental applications in latin america and the caribbean
Radiation Physics and Chemistry, 2012Co-Authors: Wilson A P Calvo, José Eduardo Manzoli, Celina L. Duarte, Luci Diva B. Machado, Aurea Beatriz C. Geraldo, Yasko Kodama, Elizabeth S.r. Somessari, Eddy Segura Pino, Leonardo Gondim De Andrade E Silva, Carlos G. SilveiraAbstract:Abstract The Radiation Processing technology for industrial and environmental applications has been developed and used worldwide. In Latin America and the Caribbean and particularly in Brazil there are 24 and 16 industrial electron beam accelerators (EBA) respectively with energy from 200 keV to 10 MeV, operating in private companies and governmental institutions to enhance the physical and chemical properties of materials. However, there are more than 1500 high-current electron beam accelerators in commercial use throughout the world. The major needs and end-use markets for these electron beam (EB) units are R and D, wire and electric cables, heat shrinkable tubes and films, PE foams, tires, components, semiconductors and multilayer packaging films. Nowadays, the emerging opportunities in Latin America and the Caribbean are paints, adhesives and coatings cure in order to eliminate VOCs and for less energy use than thermal process; disinfestations of seeds; and films and multilayer packaging irRadiation. For low-energy EBA (from 150 keV to 300 keV). For mid-energy EBA (from 300 keV to 5 MeV), they are flue gas treatment (SO 2 and NO X removal); composite and nanocomposite materials; biodegradable composites based on biorenewable resources; human tissue sterilization; carbon and silicon carbide fibers irRadiation; irradiated grafting ion-exchange membranes for fuel cells application; electrocatalysts nanoparticles production; and natural polymers irRadiation and biodegradable blends production. For high-energy EBA (from 5 MeV to 10 MeV), they are sterilization of medical, pharmaceutical and biological products; gemstone enhancement; treatment of industrial and domestic effluents and sludge; preservation and disinfestations of foods and agricultural products; soil disinfestations; lignocellulosic material irRadiation as a pretreatment to produce ethanol biofuel; decontamination of pesticide packing; solid residues remediation; organic compounds removal from wastewater; and treatment of effluent from petroleum production units and liquid irRadiation process to treat vessel water ballast. On the other hand, there is a growing need of mobile EB facilities for different applications in South America.
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Electron beam accelerators-trends in Radiation Processing technology for industrial and environmental applications in Latin America and the Caribbean
Radiation Physics and Chemistry, 2012Co-Authors: Wilson A. Parejo Calvo, José Eduardo Manzoli, Celina L. Duarte, Luci Diva B. Machado, Aurea Beatriz C. Geraldo, Yasko Kodama, Leonardo Gondim A. Silva, Elizabeth S.r. Somessari, Eddy Segura Pino, Carlos G. SilveiraAbstract:The Radiation Processing technology for industrial and environmental applications has been developed and used worldwide. In Latin America and the Caribbean and particularly in Brazil there are 24 and 16 industrial electron beam accelerators (EBA) respectively with energy from 200keV to 10MeV, operating in private companies and governmental institutions to enhance the physical and chemical properties of materials. However, there are more than 1500 high-current electron beam accelerators in commercial use throughout the world. The major needs and end-use markets for these electron beam (EB) units are R and D, wire and electric cables, heat shrinkable tubes and films, PE foams, tires, components, semiconductors and multilayer packaging films. Nowadays, the emerging opportunities in Latin America and the Caribbean are paints, adhesives and coatings cure in order to eliminate VOCs and for less energy use than thermal process; disinfestations of seeds; and films and multilayer packaging irRadiation. For low-energy EBA (from 150keV to 300keV). For mid-energy EBA (from 300keV to 5MeV), they are flue gas treatment (SO2and NOXremoval); composite and nanocomposite materials; biodegradable composites based on biorenewable resources; human tissue sterilization; carbon and silicon carbide fibers irRadiation; irradiated grafting ion-exchange membranes for fuel cells application; electrocatalysts nanoparticles production; and natural polymers irRadiation and biodegradable blends production. For high-energy EBA (from 5MeV to 10MeV), they are sterilization of medical, pharmaceutical and biological products; gemstone enhancement; treatment of industrial and domestic effluents and sludge; preservation and disinfestations of foods and agricultural products; soil disinfestations; lignocellulosic material irRadiation as a pretreatment to produce ethanol biofuel; decontamination of pesticide packing; solid residues remediation; organic compounds removal from wastewater; and treatment of effluent from petroleum production units and liquid irRadiation process to treat vessel water ballast. On the other hand, there is a growing need of mobile EB facilities for different applications in South America. © 2012 Elsevier Ltd.
Arne Miller - One of the best experts on this subject based on the ideXlab platform.
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Uncertainty of dose measurement in Radiation Processing
Radiation Physics and Chemistry, 1996Co-Authors: Arne MillerAbstract:The major standard organizations of the world have addressed the issue of reporting uncertainties in measurement reports and certificates. There is, however, still some ambiguity in the minds of many people who try to implement the recommendations in real life. This paper is a contribution to the running debate and presents the author's view, which is based upon experience in Radiation Processing dosimetry. The origin of all uncertainty components must be identified and can be classified according to Type A and Type B, but it is equally important to separate the uncertainty components into those that contribute to the observable uncertainty of repeated measurements and those that do not. Examples of the use of these principles are presented in the paper.
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Status of Radiation Processing dosimetry
Radiation Physics and Chemistry, 1993Co-Authors: Arne MillerAbstract:Abstract Several milestones have marked the field of Radiation Processing dosimetry since IMRP 7. Among them are the IAEA symposium on High Dose Dosimetry for Radiation Processing and the international Workshops on Dosimetry for Radiation Processing organized by the ASTM. Several standards have been or are being published by the ASTM in this field, both on dosimetry procedures and on the proper use of specific dosimeter systems. Several individuals are involved in this international cooperation which contribute significantly to the broader understanding of the role of dosimetry in Radiation Processing. The importance of dosimetry is emphasized in the standards on Radiation sterilization which are currently drafted by the European standards organization CEN and by the international standards organization ISO. In both standards, dosimetry plays key roles in characterization of the facility, in qualification of the process and in routine process control. As a function of the work on the standards, several issues are now receiving major attention. These include traceability and uncertainty limits of the dose measurements, calibration procedures, environmental influence and combination of influence factors such as dose rate and temperature. The increased attention to these factors have increased the demands on existing dosimeter systems, and rather than new dosimeters, the latest years have seen improvements on established dosimeters.
