A polymer-alanine film for measurements of radiation dose distributions |
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| Institution: | 1. Risø National Laboratory, DK 4000 Roskilde, Denmark;2. Nuclear Research Institute, 250 68 Řež, Czechoslovakia;1. Computer Science Department, University of Bejaia, Algeria;2. Computer Security Research Laboratory, University of Quebec in Outaouais, Quebec, Canada;1. Department of Radiation Oncology, Academic Medical Center/University of Amsterdam, Amsterdam, The Netherlands;2. Department of Radiation Oncology, MAASTRO Clinic, GROW—School for Oncology and Developmental Biology, Maastricht University Medical Center+, Maastricht, The Netherlands;3. Department of Radiation Oncology, VU University Medical Center, Amsterdam, The Netherlands;1. College of Information Science and Engineering, Northeastern University, Shenyang, 110819, China;2. Navigation College, Dalian Maritime University, Dalian, 116026, China;3. State Key Laboratory of Synthetical Automation for Process Industries, Northeastern University, Shenyang, 110819, China;4. Key Laboratory of Vibration and Control of Aero-Propulsion Systems of the Ministry of Education of China, Shenyang, 110819, China;1. Department of Ionizing Radiation, National Institute for Standards, El-Giza, Egypt;2. Department of Physics, Faculty of Science, Mansoura University, Egypt |
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| Abstract: | A film dosimeter (0.35 mm thick) composed of polyethylene-vinyl acetate and microcrystalline l-α-alanine has been prepared and investigated with respect to dosimetric properties using electron spin resonance spectroscopy. The useful absorbed dose range is ∼ 25 to 105 Gy and no dose-rate dependence of the response is observed between 1 and 107 Gy s−1 within the dose range up to 50 kGy. With irradiation temperature increasing from 25 to 80°C, the response increases at most by 10%. The response is stable, within experimental uncertainty, at least up to 2500 h after irradiation. The suitability of the polymer-alanine film for measurements of ionizing photon and electron dose distributions is demonstrated. |
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