کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1878257 1042294 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A comparison of the performance characteristics of four film dosimeters in a 10-MeV electron beam
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم تشعشع
پیش نمایش صفحه اول مقاله
A comparison of the performance characteristics of four film dosimeters in a 10-MeV electron beam
چکیده انگلیسی

Performance characteristics of four routine film dosimeters (CTA, B-3, PVC and LiF (Sunna)) in a 10-MeV electron beam were investigated. Dose response curves for the range 5–40 kGy are presented. The dose response curve is linear for the CTA film, supralinear for the LiF (Sunna) film and sublinear for the B-3 and PVC films. The low sensitivity of the CTA film to ionizing radiation restricts its use to high doses, while the supralinear response curve of the LiF (Sunna) dosimeter allows this film to be used only in measurements of low doses. The optical absorption temperature coefficients for the CTA, B-3 and LiF (Sunna) films were found to be at the level of ±0.1%/∘C±0.1%/∘C. The temperature coefficient for the PVC film decreased from +0.35%/∘C+0.35%/∘C immediately after irradiation to +0.04%/∘C+0.04%/∘C three months later. Because of the significant time dependence of the PVC film signal, a careful standardization of the heating regimen and of the time between the irradiations and measurements is necessary.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Radiation and Isotopes - Volume 66, Issue 3, March 2008, Pages 346–352
نویسندگان
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