比值法在热释光个人剂量计中的应用

The Ratio Method Applied in Personal Thermo-luminescence Dosemeters

目前广泛使用的个人剂量计不具有能量鉴别能力,在混合辐射环境、复杂辐射环境和未知能量的辐射环境中使用可能有较大的误差,为解决此问题,将比值法应用在了热释光个人剂量计。使用MCNP程序模拟计算能量响应、在标准辐射场进行实验验证并参加了全国比对。实验结果和比对结果表明,应用了比值法的剂量计能大幅度提高监测结果的质量。论文相关的剂量计设计合理、能够有效区分光子能量,在混合辐射场、复杂辐射场和未知能量辐射环境中的个人剂量监测工作中有很好的应用前景。

The personal thermo-luminescence dosemeters usually used at present are not capable of distinguishing the energy of radiation,which may cause much error when they are used in some mixed fields,complicated radiation fields and energy unknown workplace.So a kind of personal dosemeter that has capability of distinguishing energy is designed and built.It＇s energy response is calculated by MCNP program.Then it has been tested in reference fields and compared nationally.The kind of personal dosemeter can promote the quality of dose monitor by being tested and compared.This well designed dosemeter could distinguish energy of photon,which has good potential in personal dose monitor of some mixed fields,complicated radiation fields and energy unknown workplace.