The multi-stage vacuum system and gaseous secondary electron detector(GSED) for environmental scanning electron microscope(ESEM) were simply introduced and the basic principle of ESEM was discussed.
本文简单介绍了构成环境扫描电镜（ESEM）的多级真空系统和气体二次电子探测器，描述了ESEM的基本工作原理。
The vacuum and heat preserving apparatus of BGO detector using steam compressing are introduced, and temperature effect on energy resolution of BGO detector are discussed.
采用蒸汽压缩式制冷方法制作了BGO探测器真空保温系统，并探讨了温度对BGO探测器能量分辨率的影响。
The integrated Pirani vacuum sensor system in this work can be applied for the gas pressure detector in the medium and rough vacuum measurement.
本文研制的集成皮拉尼传感器系统能够作为气压检测器应用于中真空和粗真空的测量。
In both vacuum and atmosphere, the damage threshold and damage spot appearance of the photovoltaic detector are discussed under single pulse or multi-pulse laser irradiation.
分析讨论了真空及大气环境下，单脉冲及多脉冲激光打击时，光伏型探测器的破坏阈值及破坏形貌的区别及其成因。
The second is using a secondary electron detector that could function in this non vacuum sample environment.
二是使用了一个在样品室非真空环境下仍然能起作用的二次电子探头。
A overview of the basic structure, operating principle and properties for a new single-photon photo-detector, called vacuum avalanche photodiode (VAPD), is presented too.
本文着重介绍了半导体雪崩光电二极管(APD)的研究现状和应用，以及一种新型的单光子探测器—真空雪崩光电二极管(VAPD)的结构，原理和特性。
A overview of the basic structure, operating principle and properties for a new single-photon photo-detector, called vacuum avalanche photodiode (VAPD), is presented too.
本文着重介绍了半导体雪崩光电二极管(APD)的研究现状和应用，以及一种新型的单光子探测器—真空雪崩光电二极管(VAPD)的结构，原理和特性。
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