Electron dose radiation response of dyed PMMA detectors developed at IPEN.
Dyed polymethylmethacrylate (PMMA) detectors using yellow, red, blue and green colouring compounds, commercially available in Brazil, were originally developed and characterised using the optical absorption (OA) technique for gamma radiation, with the aim of obtaining a sensitive, useful, practical and cheap dosemeter for use in the quality control of industrial gamma radiation processing. In this work these detectors were evaluated for electron OA response, for use in the quality control of electron accelerator radiation processing. The studied parameters were the absorption spectra, dose-rate dependence between 2.66 and 45.22 kGy s(-1); dose response between 1.2 and 110 kGy; and energy dependence of response between 0.8 and 1.5 MeV electron energy.
Galante
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Instituto de Pesquisas Energéticas e Nucleares-IPEN/CNEN, Av. Prof. Lineu Prestes, 2242 CEP-05508-000 São Paulo, SP, Brazil. sgalante@ipen.br
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D001938:Brazil; D004396:Coloring Agents / Q000737:chemistry / Q000528:radiation effects; D004307:Dose-Response Relationship, Radiation; D004583:Electrons; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005720:Gamma Rays; D008422:Materials Testing; D019904:Polymethyl Methacrylate / Q000737:chemistry* / Q000528:radiation effects*; D011829:Radiation Dosage; D011835:Radiation Protection / Q000295:instrumentation* / Q000379:methods; D011839:Radiation, Ionizing; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013819:Thermoluminescent Dosimetry / Q000295:instrumentation* / Q000379:methods
D004396:Coloring Agents; D019904:Polymethyl Methacrylate