论文部分内容阅读
本文介绍了我们实验室研制的BPLL型晶溶发光剂量计的测量装置。本装置采用直流电流积分法。选用GDB-52型光电倍增管做光探测器,使用NWF-02A型微电流放大器和电压—频率转换器。装置的灵敏度可进行调节,对于剂量测量,八小时的稳定性是令人满意的。48个测量数据的平均值的标准偏差为±0.4％。在此装置上对适用于辐射加工的谷氨酰胺晶溶发光剂量计的剂量学特性进行了研究。谷氨酰胶的剂量响应线性范围为10~2～10~4Gy。论述了溶剂的温度、样品的质量对光产额的影响以及射线照射后的存贮效应。
This article describes the measurement apparatus developed by our laboratory for the BPLL crystal-based luminescence dosimeter. The device uses DC current integration method. Use GDB-52 type photomultiplier tube as light detector, use NWF-02A micro-current amplifier and voltage-frequency converter. The sensitivity of the device can be adjusted, and for eight hours the stability of the dose measurement is satisfactory. The standard deviation of the average of the 48 measurements was ± 0.4%. The dosimetric properties of a glutamine crystallolytic luminescence dosimeter suitable for radiation processing were investigated on this device. The dose response of glutamate ranged from 10 ~ 2 ~ 10 ~ 4Gy. The effects of the temperature of the solvent, the quality of the sample on the yield of light, and the storage effect after radiation are discussed.