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光电倍增管是一种将光信号转换成电信号的光电器件.光电倍增管主要由光电阴极、倍增系统及真空密封外壳等组成.按倍增系统来分,光电倍增管大致可分为四大类:百叶窗式光电倍增管、盒式光电倍增管、聚焦式光电倍增管和加速式光电倍增管. 由于光电倍增管具有极低的噪声、快速响应和高达10~6倍以上的放大能力,使其成为快速探测微弱光信号最灵敏器件之一.因此,它的应用范围越来越大,如射线仪器、光学仪器、激光仪器、电视设备、图象传真、天文应用、空间开发等方面,尤其在射线探测以及
Photomultiplier tube is a kind of optoelectronic device which converts optical signal into electrical signal.The photomultiplier tube mainly consists of photocathode, multiplier system and vacuum sealed housing, etc. According to the multiplication system, photomultiplier tube can be divided into four categories : Louvered photomultiplier tubes, photomultiplier tubes, focusing photomultiplier tubes and accelerating photomultiplier tubes Since photomultiplier tubes have very low noise, fast response, and up to 10 to 6 times more amplification capability, It becomes one of the most sensitive devices for fast detection of weak optical signals. Therefore, its application is more and more large, such as ray instruments, optical instruments, laser instruments, television equipment, image faxes, astronomical applications, space development, Ray detection as well