密闭式电热增压液氮自动注入器

AN AUTOMATIC PRESSURIZED LIQUID N_2 FILLER IN SEALED CONTAINER BY ELECTRO-HEATING

摘要: <正> HPGe,Si(Li)及Ge(Li)等半导体探测器有良好的能量分辨率,已广泛用于γ、X射线谱的分析。这类探测器不仅要在低温下工作,有的还需要在液氮温度下保存。因此,定期地向低温恒温器内充液氮是采用这类探测器后

Abstract: This paper describes a simple and useful device which can pump up liquid N_2automatically from its container to fill the cryostals of the HPGe, Si(Li) andGe(Li) detectors. It is particularly suitable for the laboratories without aircompressors.