Analysis of Resolution Change of the Super Gen.Ⅱ Image Intensifier with Input Illumination Variation

LI Xiaofeng; CHANG Le; LIU Beihong; XU Shiyu; DING Yibing

Volume 44 Issue 4

Apr. 2022

Turn off MathJax

Article Contents

Article Navigation > Infrared Technology > 2022 > 44(4): 377-382

LI Xiaofeng, CHANG Le, LIU Beihong, XU Shiyu, DING Yibing. Analysis of Resolution Change of the Super Gen.Ⅱ Image Intensifier with Input Illumination Variation[J]. Infrared Technology , 2022, 44(4): 377-382.

Citation:

LI Xiaofeng, CHANG Le, LIU Beihong, XU Shiyu, DING Yibing. Analysis of Resolution Change of the Super Gen.Ⅱ Image Intensifier with Input Illumination Variation[J]. Infrared Technology , 2022, 44(4): 377-382.

Citation:

PDF( 534 KB)

Analysis of Resolution Change of the Super Gen.Ⅱ Image Intensifier with Input Illumination Variation

1.
North Night Vision Technology Co. Ltd, Kunming 650217, China
2.
Science and Technology on Low-light-level Night Vision Laboratory, Xi'an 710065, China

Received Date: 2021-04-14
Rev Recd Date: 2021-04-30
Publish Date: 2022-04-20

Abstract

Abstract

The resolution of image intensifier samples with different limiting resolution, signal-to-noise ratio, and equivalent background illumination were tested under different illuminations to study the variation of the resolution of Super Gen.Ⅱ image intensifier. By analyzing the test data, the influence of limiting resolution, signal-to-noise ratio and equivalent background illumination on resolution under different illuminations were obtained. The results show that in the range of 5×10⁻² to 5×10⁻³ lx, the resolution of the image intensifier with different performance parameters is identical to its limiting resolution, and the resolution does not decrease with decreasing illumination. In the range of 5×10⁻³ to 5×10⁻⁷ lx, the resolution differs from its limiting resolution, and the resolution decreases with decreasing illumination. In the case of resolution decreasing with illumination, the higher the signal-to-noise ratio and the lower the equivalent background illumination, the lower the rate of resolution decrease, and the resolution reamains relatively high. In the illumination range of 5×10⁻³ to 5×10⁻⁶ lx, signal-to-noise ratio has a greater influence on the resolution, whereas in the illumination range of 5×10⁻⁶ to 5×10⁻⁷ lx, the influence of equivalent background illumination is greater. As the image intensifier is mainly used in low light conditions, the resolution under these conditions is more important. To increase the resolution of the image intensifier in the illumination range of 5×10⁻³ to 5×10⁻⁷ lx, it is necessary to improve the signal-to-noise ratio and reduce the equivalent background illumination as well as the limiting resolution.
- image intensifier,
- resolution,
- signal-to-noise ratio,
- equivalent background illumination,
- contrast

FullText(HTML)

References(21)

References

[1]	李晓峰, 李娇娇, 李金沙, 等. 超二代及三代像增强器不同响应波段的参数测量及比较[J]. 光子学报, 2020, 50(2): 0225001-1. https://www.cnki.com.cn/Article/CJFDTOTAL-GZXB202102013.htm LI Xiaofeng, LI Jiaojiao, LI Jinsha, et al. Measure and comparison between the Second-generation and the third-generation image intensifier within the different region of wavelength[J]. Acta Photonica Sinica, 2021, 50(2): 0225001-1. https://www.cnki.com.cn/Article/CJFDTOTAL-GZXB202102013.htm
[2]	李晓峰, 杜木林, 徐传平, 等. 影响超二代像增强器最高增益的因数分析[J]. 光子学报, 2022, 51(3): 0304001-1. https://www.cnki.com.cn/Article/CJFDTOTAL-GZXB202203011.htm LI Xiaofeng, DU Mulin, XU Chuanping, et al. Analysis on factors affecting the maximum gain of super second generation image intensifier[J]. Acta Photonica Sinica, 2022, 51(3): 0304001-1. https://www.cnki.com.cn/Article/CJFDTOTAL-GZXB202203011.htm
[3]	微光像增强器试验方法: WJ 2091-1992 [S]. 北京: 中国标准出版社, 1992. Test Method of Image Intensifier: WJ 2091-1992 [S]. Beijing: Standards Press of China, 1992.
[4]	像增强器通用规范: GJB 2000A-2020[S]. 北京: 中国标准出版社, 2020. General Specification of Image Intensifier: GJB 2000A-2020[S]. Beijing: Standards Press of China, 2020.
[5]	李晓峰, 常乐, 赵恒, 等. 超二代与三代像增强器低照度分辨力的比较[J]. 光子学报, 2021, 50(9): 0904003. https://www.cnki.com.cn/Article/CJFDTOTAL-GZXB202109030.htm LI Xiaofeng, CHANG Le, ZHAO Heng, et al. Comparison of resolution between super gen. Ⅱ and gen. Ⅲ image intensifier[J]. Acta Photonica Sinica, 2021, 50(9): 0904003. https://www.cnki.com.cn/Article/CJFDTOTAL-GZXB202109030.htm
[6]	LU Nianhua, YANG Yigang, LV Jingwen, et al. Neutron detector design based on ALD coated MCP[J]. Physics Procedia, 2012, 26: 110-115.
[7]	YAN Baojun, LIU Shulin, HENG Yuekun, et al. Nano-oxide thin films deposited via atomic layer deposition on microchannel plates[J]. Nanoscale Research Letters, 2015, 10(1): 1-11. doi: 10.1186/1556-276X-10-1
[8]	LU Nianhua, YANG Yigang, LIU Jingwen, et al. Neutron detector design based on ALD coated MCP[J]. Physics Procedia, 2012, 26: 110-115.
[9]	李晓峰, 李廷涛, 曾进能, 等. 微通道板输入信号利用率提高研究[J]. 光子学报, 2020, 49(3): 0325002. https://www.cnki.com.cn/Article/CJFDTOTAL-GZXB202003022.htm LI Xiaofeng, LI Tingtao, ZENG Jinneng, et al. Study on the improvement of input signal utilization of MCP[J]. Acta Photonica Sinica, 2020, 49(3): 0325002. https://www.cnki.com.cn/Article/CJFDTOTAL-GZXB202003022.htm
[10]	李晓峰, 常乐, 曾进能, 等. 微通道板分辨力提高研究[J]. 光子学报, 2019, 48(12): 1223002. https://www.cnki.com.cn/Article/CJFDTOTAL-GZXB201912016.htm LI Xiaofeng, CHANG Le, ZENG Jinneng, et al. Study on resolution improvement of microchannel plate[J]. Acta Photonica Sinica, 2019, 48(12): 1223002. https://www.cnki.com.cn/Article/CJFDTOTAL-GZXB201912016.htm
[11]	Hoenderken T H, Hagen C W, Barth J E, et al. Influence of the microchannel plate and anode gap parameters on the spatial resolution of an image intensifier[J]. Journal of Vacuum Science & Technology B, 2001, 19(3): 843-850.
[12]	陶禹, 金伟其, 王瑶, 等. 高性能近贴式像增强器的调制传递函数分析[J]. 光子学报, 2016, 45(6): 0604003. https://www.cnki.com.cn/Article/CJFDTOTAL-GZXB201606027.htm TAO Yu, JIN Weiqi, WANG Yao, et al. The MTF analysis of high performance proximity image intensifier[J]. Acta Photonica Sinica, 2016, 45(6): 0604003. https://www.cnki.com.cn/Article/CJFDTOTAL-GZXB201606027.htm
[13]	邱亚峰, 严武凌, 华桑暾. 基于电子追迹算法的微光像增强器分辨力研究[J]. 光子学报, 2020, 49(12): 1223003. https://www.cnki.com.cn/Article/CJFDTOTAL-GZXB202012003.htm QIU Yafeng, YAN Wuling, HUA Sangtun. Resolution research of low-light-level image intensifier based on electronic trajectory tracking[J]. Acta Photonica Sinica, 2020, 49(12): 1223003. https://www.cnki.com.cn/Article/CJFDTOTAL-GZXB202012003.htm
[14]	Alla Shymanska. Numerical analysis of electron optical system with microchannel plate[J]. Journal of Computational Electronics, 2011, 10(3): 57-60.
[15]	钱芸生, 常本康, 童默颖, 等. 微光像增强器噪声频谱测试技术研究[J]. 光学学报, 2003, 23(1): 67 -70. doi: 10.3321/j.issn:0253-2239.2003.01.015 QIAN Yunsheng, CHANG Benkang, TONG Moying. Frequency spectrum measurement of noise of image intensifiers[J]. Acta Optica Sinica, 2003, 23(1): 67-70. doi: 10.3321/j.issn:0253-2239.2003.01.015
[16]	李晓峰, 李金沙, 常乐, 等. 微通道板噪声因子与工作电压关系研究[J]. 光子学报, 2020, 49(7): 0725002. https://www.cnki.com.cn/Article/CJFDTOTAL-GZXB202007003.htm LI Xiaofeng, LI Jinsha, CHANG Le, et al. Study on the relationship between noise factor and working voltage of microchannel plate[J]. Acta Photonica Sinica, 2020, 49(7): 0725002. https://www.cnki.com.cn/Article/CJFDTOTAL-GZXB202007003.htm
[17]	Pranav Gupta, Luca Cultrera, Ivan Bazarov. Monte Carlo simulations of electron photoemission from cesium antimonide[J]. Journal of Applied Physics, 2017, 121(21): 215702. doi: 10.1063/1.4984263
[18]	李晓峰, 赵恒, 张彦云, 等. 高性能超二代像增强器及发展[J]. 红外技术, 2021, 43(9): 811-816. http://hwjs.nvir.cn/article/id/5a0a0141-171d-410c-bb3f-ac14dc76e189 LI Xiaofeng, ZHAO Heng, ZHANG Yanyun, et al. High performance super second generation image intensifier and its further development[J]. Infrared Technology, 2021, 43(9): 811-816. http://hwjs.nvir.cn/article/id/5a0a0141-171d-410c-bb3f-ac14dc76e189
[19]	Dimitrov D, Bell G, Smedley J, et al. Modeling quantum yield, emittance, and surface roughness effects from metallic photocathodes[J]. Journal of Applied Physics, 2017, 122(16): 165303. doi: 10.1063/1.4996568
[20]	Nutzel G, Lavout P. Sem-transparent Photocathode with Improved Absorption Tate: US, 9960004B2[P]. 2018-05-01.
[21]	格特⋅怒茨泽尔, 帕斯卡尔⋅拉武特. 具有改善吸收率的半透明的光电阴极: CN, 104781903A[P]. 2015-07-15. Nutzel G, Lavout P. Sem-transparent photocathode with improved absorption rate: CN, 9960004B2[P]. 2015-07-15.