Infrared Technology, Volume. 43, Issue 9, 811(2021)

High Performance Super Second Generation Image Intensifier and Its Further Development

Xiaofeng LI1,2、*, Heng ZHAO1, Yanyun ZHANG1, and Qindong ZHANG1
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  • 1[in Chinese]
  • 2[in Chinese]
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    This paper presents the technical characteristics and performance of high performance super second generation image intensifier, compares it with ordinary super second generation image intensifier, and puts forward the technical measures to further improve the performance of high performance super second generation image intensifier. Super second generation image intensifier is a kind of image intensifier with higher performance over second generation image intensifier. It was developed by application of new technology, new craft and new material on the base of the second generation image intensifier. After nearly 30 years of development, its performance has been greatly improved. In recent years, due to the use of grating window on the super second generation image intensifier, the sensitivity of the Na2KSb photocathode is over 1000 ?A·lm-1, and the resolution is above 17 lp·mm-1 on the illumination of 10-4 lx. It would be predicted that the sensitivity of Na2KSb photocathode will reach 1350-1800 ?A?lm-1, and the signal-to-noise ratio will reach 35-40 by further improving the fabrication process of Na2KSb film and optimizing the structure of grating. It would be predicted that the resolution will reach 81 lp·mm-1through use of microchannel plate of 4 ?m diameter and fiber optical plate of 3 ?m diameter, the resolution is likely to reach 81 lp·mm-1.

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    LI Xiaofeng, ZHAO Heng, ZHANG Yanyun, ZHANG Qindong. High Performance Super Second Generation Image Intensifier and Its Further Development[J]. Infrared Technology, 2021, 43(9): 811

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    Paper Information

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    Received: Sep. 22, 2020

    Accepted: --

    Published Online: Nov. 6, 2021

    The Author Email: Xiaofeng LI (984118295@qq.com)

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