放射性活度计灵敏度曲线测量及应用

Sensitivity Curve Measurement and Application of Radioactivity Meter

摘要: 利用已有标准样品的活度值和放射性活度计测量得到的电流值，在不同能量段对核素分段构造函数，拟合出灵敏度曲线。然后利用灵敏度曲线函数计算出待测核素的电流活度比，从而很好地解决了HD-175型放射性活度计的刻度问题。

Abstract: The paper describes the sensitivity curve measurements and applications for radioactivity meter. The energy-dependent sensitivity curve is established with the activity of standard sources and their corresponding current by constructing functions subsection. Thus the currentactivity ratio is acquired from the sensitivity curve and the calibration of radioactivity meter is solved satisfactorily.