Study on the External Quenching Circuit of Halogen GM Tube

In this study, the improvement of halogen GM tube of the external circuit was carried on by using external quenching method, and the advantages of low threshold pressure was also reserved, so the performance of GM tube was optimized. Even if the internal loss of halogen happened in the process of gas quenching, quenching circuit outside still work normally with the research effects, including increasing measurement range and lifespan of GM tube.