SD-3系列测氡仪检查源在FD-125测氡仪坪曲线测试工作中的实验研究

Using the α-check-source of SD-3 Emanometer to find the Testing-plateau-curve of FD-125 Emanometer

在FD-125测氡仪检查工作中,需使用α检查源或固体氡气源测试高压-坪曲线来确定及检查最佳工作高压。由于厂家提供α检查源测试高压-计数率坪曲线坪区不明显、氡源故障,造成在FD-125测氡仪检查工作中难以对工作高压进行检查的问题。考虑到SD-3系列测氡仪其工作原理与FD-125测氡仪基本一致,SD-3系列测氡仪故障后所配置α检查源仍然可用,因此,将SD-3测氡仪检查源用于FD-125测氡仪的检查工作,经测试效果较好。

We often check and determine the best working iligh-vohage by using the testing-plateau-curve, which needs the a-check-source or solid radon gas. In order to check the FD-125 emanometer, we often meet some prob- lems. For example, the plateau-curve of manufacture is not very clear, and the radon source is out of work, and so on. These problems bring about difficulty of determining best working high-voltage. Considering the same principle of measurement between the FD-125 and SD-3, we try to use the a-check-source of SD-3 to check the FD-125, when it was scraped. After the test analyzing, using the old a-check-source of SD - 3 to check the FD-125 has got a good result.