| ^60Coγ射线放疗水平二级剂量标准的TLD国际比对 |
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| 引用本文： | 刘雅,郭朝晖,姜庆寰,程金生.^60Coγ射线放疗水平二级剂量标准的TLD国际比对[J].中国辐射卫生,2013(6):670-672. |
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| 作者姓名： | 刘雅 郭朝晖 姜庆寰 程金生 |
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| 作者单位： | 中国疾病预防控制中心辐射防护与核安全医学所,辐射防护与核应急中国疾病预防控制中心重点实验室,北京100088 |
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| 摘 要： | 目的通过参加IAEA/WHO组织的TLD国际比对,检查二级标准剂量学实验室（SSDL）放疗水平剂量标准和国际标准的一致性。方法 SSDL对IAEA邮寄的TLD进行照射,并计算出其吸收剂量,然后将TLD及其计算结果寄往IAEA剂量学实验室,IAEA对其进行评价后给出比对的偏差。结果本次60Coγ射线吸收剂量比对的偏差为-1.8%。结论按照IAEA要求,该项比对的最大允许偏差为±3.5%,所以这次比对结果是合格的。
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| 关 键 词： | 国际比对 热释光剂量计 二级剂量标准 |
TLD International Intercomparision of Secondary Dosimetry Standard for ^60Coγ-ray Radiotherapy Level |
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| Institution: | LIU Ya, GUO Zhao - hui, JIANG Qing - huan, CHENG Jin - sheng.( National Institute for Radiological Protection, China CDC, Beijiing 100088 China.) |
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| Abstract: | Objective To check the consistency between SSDL radiotherapy dose level standard and international standard,our SSDL participated in TLD international intercomparision organized by IAEA / WHO in 2012. Methods SSDL irradiated the TLDs posted by IAEA and caculated the dose to be delivered to the TLDs,then returned the TLDs and data sheet to IAEA dosimetry laboratory. IAEA gave the diviation of intercomparision result. Results The deviation for 60Co is-1. 8%. Conclusion The requirement of deviation between IAEA and SSDL should be no more than ± 3. 5%. Therefore the results of this intercomparison are considered satisfactory. |
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| Keywords: | International Intercomparision TLD Secondary Dosimetry Standard |
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