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GB/T 37951-2019: Test methods for microchannel plate
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Test methods for microchannel plate
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GB/T 37951-2019
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Basic data | Standard ID | GB/T 37951-2019 (GB/T37951-2019) | | Description (Translated English) | Test methods for microchannel plate | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | L50 | | Classification of International Standard | 31.260 | | Word Count Estimation | 26,231 | | Date of Issue | 2019-08-30 | | Date of Implementation | 2020-03-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 37951-2019: Test methods for microchannel plate---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Test methods for microchannel plate
ICS 31.260
L50
National Standards of People's Republic of China
Microchannel plate test method
Published on.2019-08-30
2020-03-01 implementation
State market supervision and administration
China National Standardization Administration issued
Content
Foreword III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 General requirements 2
4.1 Atmospheric conditions 2
4.2 Vacuum conditions 2
4.3 Test parameter tolerance 2
4.4 Sample 2
5 Test method 2
5.1 size 2
5.2 Appearance quality 7
5.3 Electrical performance 8
5.4 Process Adaptability 16
5.5 Environmental Adaptability 17
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
Please note that some of the contents of this document may involve patents. The issuing organization of this document is not responsible for identifying these patents.
This standard was proposed by the China Machinery Industry Federation.
This standard is under the jurisdiction of the National Optical and Photonics Standardization Technical Committee (SAC/TC103).
This standard was drafted. North Night Vision Technology Co., Ltd., China Metrology University, Nanjing University of Science and Technology, China Ordnance Industry Standardization
Institute, Shanghai Institute of Ceramics, Chinese Academy of Sciences.
The main drafters of this standard. Liu Wenshan, Zhang Shuqin, Guo Yan, Qian Yusheng, Zhao Huimin, Zhang Zhiyong, Shao Aifei, Zhang Qindong, Su Detan, Sun Sailing,
Zhang Yanyun, Li Yanna, Li Yuwen, Wu Yongqing, Mao Hanjun, Xu Wei, and Hui Huimin.
Introduction
The microchannel plate has the advantages of high spatial resolution, fast time response, large dynamic range, small size, light weight, etc., in night vision technology, particle meter
Fields, space exploration, scientific research and other fields have been widely used. In order to meet the development needs of microchannel plate research and production, it has promoted all relevant parties.
Coordination and promotion of trade and communication, it is necessary to develop national standards for microchannel plate test methods.
The test items of this standard involve the dimensions, appearance quality, electrical properties, process adaptability and environmental adaptability of microchannel plates, including
Common diameters, channel diameter, open area ratio, bevel angle, electrode depth, gain, resistance, gain non-uniformity, noise factor, and lifetime
Performance metrics for most applications.
Since the shape and channel of the microchannel plate are mainly circular, the number of other shapes (such as polygons) is very small, so this standard
When the standard size is involved, the test method is based on a circle, but this does not affect the standard versatility, because other shapes of the ruler
A similar method can be used to calculate from the analytical geometry relationship.
In addition to general-purpose instrumentation for dimensional measurement and mechanical environment testing, there is currently no special equipment for microchannel plate testing.
In order to avoid technical barriers, only the corresponding measurement principles are described in this standard, and the construction and instrumentation of the equipment are not limited.
Microchannel plate test method
1 Scope
This standard specifies the terms and definitions of microchannel plates, general requirements for testing and test methods.
This standard applies to microchannel boards.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 1185-2006 Optical parts surface rickets
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Microchannel plate microchannelplate; MCP
An array electron multiplier consisting of a large number of tiny channels based on the principle of secondary electron multiplication.
3.2
Effective area usefularea
Use the minimum electron multiplication area expected by the function.
3.3
Opening area ratio openarearatio
In the effective area, the ratio of the sum of the area occupied by the passage holes to the area of the effective area.
3.4
Gain gain
The ratio of the output electron flow to the input electron flow.
3.5
Resistance resistance
The ratio of the applied voltage between the input and output electrodes to the steady state current flowing between the two electrodes.
3.6
Dark current darkcurrent
The output current at the rated operating voltage without input current.
Note. The dark current per unit area is called the dark current density.
3.7
Gain non-uniformity electrongainnon-uniformity
The output electronic image produced by the difference in gain between channels has a visual characteristic of uneven distribution of light and dark.
3.8
Launch point
Self-excited emission without input current at rated operating voltage.
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