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Study on magnetic mirror array image intensifier to work at room temperature
Tang, YH; Yu, Y; Gao, HY; Liu, SL; Wang, XL; Liu SL(刘术林)
2015
Source PublicationAPPLIED OPTICS
ISSN1559-128X
EISSN2155-3165
Volume54Issue:26Pages:8010-8017
SubtypeArticle
AbstractIn order to improve the detection capability of the current low-light-level (LLL) imaging systems at room temperature, a new device, a magnetic mirror array image intensifier (MMAII), is proposed in this paper. A magnetic mirror array device (MMAD) is coupled into an image intensifier which sits between the photocathode and the microchannel plate (MCP). The trace photoelectrons, one after another, are first sufficiently accumulated by the MMAD over a long time at room temperature, and then they are released and enter the MCP for further gain. These two steps are used to improve the detection capability at the LLL imaging system at room temperature. After the two-dimensional magnetic field distribution of the magnetic mirror array (MMA) is calculated, the MMA is designed and optimized with a rubidium Nd-Fe-B permanent magnet. Three groups of ideal parameters for the Nd-Fe-B permanent magnet MMAD, with a magnetic mirror ratio of 1.69, for all of them have been obtained. According to the research results on the noise of the escape cone of the MMAII, the angle between the incident direction and the axis is greater than 57 degrees, so the trace electrons must be constrained by the magnetic mirror. We made 54 MMAs from Nd-Fe-B permanent magnets and packaged them in a container. Then the system was evacuated to 10(-3) Pa at room temperature. It was found by experiment that the trace electrons could be actually constrained by the MMAD. The MMAII can be applied to images for static LLL objects. (C) 2015 Optical Society of America
Subject AreaOptics
DOI10.1364/AO.54.008010
Indexed BySCI ; EI
Language英语
WOS Research AreaOptics
WOS SubjectOptics
WOS IDWOS:000361143300029
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/228738
Collection实验物理中心
Recommended Citation
GB/T 7714
Tang, YH,Yu, Y,Gao, HY,et al. Study on magnetic mirror array image intensifier to work at room temperature[J]. APPLIED OPTICS,2015,54(26):8010-8017.
APA Tang, YH,Yu, Y,Gao, HY,Liu, SL,Wang, XL,&刘术林.(2015).Study on magnetic mirror array image intensifier to work at room temperature.APPLIED OPTICS,54(26),8010-8017.
MLA Tang, YH,et al."Study on magnetic mirror array image intensifier to work at room temperature".APPLIED OPTICS 54.26(2015):8010-8017.
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