光子计数特性反常效应的实验观测与研究

An Experimental Observation and Study of the Abnormal Effect on photon Counting Characteristics

本文首次报道了PMT光子计数系统光电特性的反常现象,介绍了观测与研究其反常效应的实验装置与方法,给出了相应的实验结果,并就PMT阳极电压、入射光波长、偏振特性等对反常效应的影响进行了初步的实验研究。

This article has reported the abnormal phenomenon on photoelectric characteris- tics of PMT photon counting system for the first time. The two physical quantities (i. e. ab- normal position R_(iz) and abnormal depth ΔR_(sh) for the describing of abnormal effect are de- fined, the experimental apparatus and method for observation and study of the abnormal ef- fect on photoelectric characteristics of PMT photon counting system are introduced, the ef- fects of PMT anode voltage, wavelength and polarization feature of incidence light on abnor- mal position R_(iz) and abnormal depth ΔR_(sh) are studied experimently.