本文叙述了氢原子束探针的研制。该探针的特点是中性束的等效流强小,结构较简单,使用了特殊结构的探测器。文中给出了模拟等离子体中离子密度测量结果,数据表明,随着放电电压增大,离子密度增高,有外加磁场放电比无外加磁场放电时的密度大。实验数据由电压波形存贮器配上微处理机系统进行在线测量。 This article describes the development of hydrogen atomic beam probes. The probe is characterized by the equivalent stream of neutral beam intensity is small, the structure is simple, the use of a special structure of the detector. The results of ion density measurement in simulated plasma are given. The data shows that with the increase of discharge voltage and the increase of ion density, the density of external magnetic field discharge is higher than that of external magnetic field discharge. The experimental data from the voltage waveform memory coupled with microprocessor system for on-line measurement.