The analysis of the defects of the view field of the UV image intensifier

RongGuo Fu; YiFang Wei; Qi Yang; Xu Yang; GuiYuan Wang

doi:10.1117/12.2264947

5 May 2017 The analysis of the defects of the view field of the UV image intensifier

RongGuo Fu, YiFang Wei, Qi Yang, Xu Yang, GuiYuan Wang

Proceedings Volume 10196, Sensors and Systems for Space Applications X; 1019604 (2017) https://doi.org/10.1117/12.2264947
Event: SPIE Defense + Security, 2017, Anaheim, CA, United States

Abstract

UV(ultraviolet) image intensifier is a vacuum image device with Cs2Te (Cesium Tellurium) photocathode. It converts the incident ultraviolet(UV) light from the optical lens into electronic signal, then the electronic signal is converted into responding visible image on the phosphor screen. Defects of different sizes can be seen on the screen when it works. A system is build to inspect the distribution of the defects, then the sources and category of the defects of the view field are analyzed, including photocathode, microchannel plate and phosphor screen, some improving technique is brought to decrease the defects.

Citation Download Citation

RongGuo Fu, YiFang Wei, Qi Yang, Xu Yang, and GuiYuan Wang "The analysis of the defects of the view field of the UV image intensifier", Proc. SPIE 10196, Sensors and Systems for Space Applications X, 1019604 (5 May 2017); https://doi.org/10.1117/12.2264947

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KEYWORDS

Image intensifiers

Cesium

Tellurium

Defect detection

Edge detection

Image processing

Inspection

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