کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1879464 1042569 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Feasibility study of radiophotoluminescent glass rod dosimeter postal dose intercomparison for high energy photon beam
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم تشعشع
پیش نمایش صفحه اول مقاله
Feasibility study of radiophotoluminescent glass rod dosimeter postal dose intercomparison for high energy photon beam
چکیده انگلیسی

A radiophotoluminescent glass rod dosimeter (GRD) system has recently become commercially available. In this study we evaluated whether the GRD would be suitable for external dosimetric audit program in radiotherapy. For this purpose, we introduced a methodology of the absorbed dose determination with the GRD by establishing calibration coefficient and various correction factors (non-linearity dose response, fading, energy dependence and angular dependence). A feasibility test of the GRD postal dose intercomparison was also performed for eight high photon beams by considering four radiotherapy centers in Korea. In the accuracy evaluation of the GRD dosimetry established in this study, we obtained within 1.5% agreements with the ionization chamber dosimetry for the 60Co beam. It was also observed that, in the feasibility study, all the relative deviations were smaller than 3%. Based on these results, we believe that the new GRD system has considerable potential to be used for a postal dose audit program.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Radiation and Isotopes - Volume 67, Issue 2, February 2009, Pages 324–328
نویسندگان
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