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首页> 外文期刊>Applied radiation and isotopes: including data, instrumentation and methods for use in agriculture, industry and medicine >Feasibility study of radiophotoluminescent glass rod dosimeter postal dose intercomparison for high energy photon beam.
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Feasibility study of radiophotoluminescent glass rod dosimeter postal dose intercomparison for high energy photon beam.

机译：放射性光致发光玻璃棒剂量计邮政剂量比对高能光子束的可行性研究。

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摘要

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 (60)Co 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.
机译：放射光致发光玻璃棒剂量计（GRD）系统最近已经可以商业获得。在这项研究中，我们评估了GRD是否适合放射治疗中的外部剂量学审核程序。为此，我们通过建立校准系数和各种校正因子（非线性剂量响应，衰落，能量依赖性和角度依赖性），引入了利用GRD确定吸收剂量的方法。还考虑了韩国的四个放射治疗中心，对八个高光子束进行了GRD邮政剂量比对的可行性测试。在这项研究中建立的GRD剂量测定的准确性评估中，我们获得了与（60）Co束电离室剂量测定一致的1.5％的协议。还观察到，在可行性研究中，所有相对偏差均小于3％。根据这些结果，我们认为新的GRD系统具有很大的潜力可用于邮政剂量审核程序。

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