^(125)I密封籽源水中吸收剂量分布的测量  

Measurement of distribution of absorbed dose to water from ^(125)I seed sources

作　　者：滕婧静[1] 眭国平[1] 陈建新[1] 

机构地区：[1]上海市计量测试技术研究院

出　　处：《上海计量测试》2012年第5期25-28,共4页Shanghai Measurement and Testing

摘　　要：用热释光剂量计对125I密封籽源在水中的剂量分布进行具有量值溯源性的测量,结果表明,125II密封籽源在水中的剂量分布随着离源距离的增加而快速衰减,同时受照角度对剂量分布也有一定的影响。模拟实验有助于改进放射性籽源植入治疗的剂量准确性和安全性。对测量误差和实验方法也进行了有益的讨论。The distribution of absorbed dose to water from ^125Iseed sources was measured by TLD. The result indicated that the dose distribution of^125I seed sources in water decreased quickly with the increasing distance from sources and changed with angles. The simulation experiment is helpful to improve the dosimetry accuracy and safety in therapy of radioactive seed planting. The measurement errorand experiment mthod were also discussed in this paper.

关 键 词：125I密封籽源 吸收剂量测量 热释光剂量计(LiF-TLD) 

分 类 号：TL84[核科学技术—核技术及应用] R142[医药卫生—公共卫生与预防医学]