作者：杨建1,2, 方方1, 张从华2
作者单位：1. 成都理工大学, 四川 成都 610059;
2. 中国测试技术研究院, 四川 成都 610021
关键词：伽玛刀; 焦点剂量率; 半导体探测器; 小射野
摘要：
根据半导体探测器体积小、灵敏度高及无方向性等特点,研制一种用于测量伽玛刀焦点剂量率的半导体探测器,建立伽玛射线的半导体探测器测量模型,并给出半导体探测器模型的测量计算方法。实验结果表明:研制的半导体探测器适用于伽玛刀小射野下的焦点剂量率的测量和检定。
Application of semiconductor detectors in gamma knife's verification
YANG Jian1,2, FANG Fang1, ZHANG Cong-hua2
1. Chengdu University of Technology, Chengdu 610059, China;
2. National Institute of Measurement and Testing Technology, Chengdu 610021, China
Abstract: According to the small size, high sensitivity and non-directional characteristics of the semiconductor detector, a kind of semiconductor detector for measuring the dose rate of gamma knife's focus was developed. Then a semiconductor detector's model for gamma ray measurement was built, and the measurement calculation method of the semiconductor detector's model was given. The experimental tests show that the semiconductor detector developed was suitable for the measurement and verification of the gamma knife's focus dose rate at small gamma radiation field.
Keywords: gamma knife; dose rate of focus; semiconductor detector; small radiation field
2014, 40(4): 23-25 收稿日期: 2013-10-27;收到修改稿日期: 2013-12-18
基金项目: 国家科技支撑计划项目(2011BA102B07);四川省科技计划项目(2013GZ0010)
作者简介: 杨建(1982-),男,江苏南通市人,博士研究生,主要从事辐射测试与计量研究工作。
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