中华放射医学与防护杂志

程金生,安晶刚,刘立明,郭朝晖.2002年⁶⁰Co放疗标准的IAEA-SSDL TLD国际比对[J].中华放射医学与防护杂志,2003,23(1):50-51

2002年⁶⁰Co放疗标准的IAEA-SSDL TLD国际比对

IAEA-SSDL TLD intercomparison of ⁶⁰Co radiotherapy dose level standard in our SSDL in 2002

投稿时间：2002-09-02

DOI：

英文关键词:IAEA ⁶⁰Co radiotherapy dose level standard TLD Intercomparison

基金项目:

作者	单位
程金生	100088 北京, 中国疾病预防控制中心辐射防护与核安全医学所
安晶刚	100088 北京, 中国疾病预防控制中心辐射防护与核安全医学所
刘立明	100088 北京, 中国疾病预防控制中心辐射防护与核安全医学所
郭朝晖	100088 北京, 中国疾病预防控制中心辐射防护与核安全医学所

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中文摘要:

目的参加IAEA的SSDL比对,检查SSDL⁶⁰Co放疗标准的准确度水平,保证量值传递的准确性。方法 IAEA在比对时邮寄TLD到本所SSDL,经过测量后对每个TLD照射2Gy,IAEA对其进行评价后给出SSDL的比对偏差。结果参加这次比对的偏差为-2.4%.结论根据IAEA的规定,该项比对的最大允许偏差为±3.5%,所以这次比对是合格的。

英文摘要:

Objective By participating in IAEA-SSDL TLD postal intercomparison to check the measuring consistency of our ⁶⁰Co radiotherapy dose level standard and ensure the accuracy of our calibration. Methods IAEA send TLDs to our SSDL and we irradiated each TLD with 2 Gy, which were then returned to IAEA.The irradiated TLDs were measured by IAEA dosimetry laboratory and gave the diviation between our stated dose and IAEA reference dose. Results The results of intercomparison indicated the diviation was -2 4%. Conclusions The deviation between our stated dose and the reference dose is well within the IAEA acceptable level of ± 3 5%.Therefore the result of this intercomparison is considered satisfactory.

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