| Autor: |
Tai-min Zhang, Fan Zhang, Xiao-jian Liu, Ni Zhang, Shu-fei Wang, Dan Li, Jing Nie, Zhao-lu Liu, Yu-feng Zhu |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part I. |
| ISSN: |
0277-786X |
| DOI: |
10.1117/12.2177782 |
| Popis: |
The noise factor, which is the main factor affecting the noise performance of image intensifier and can accurately reflect the noise characteristics of the micro-channel plate(MCP), is the ratio of the input signal to noise ratio (SNR) and the output SNR. According to definition of noise factor of micro channel plate, noise mechanism and test principle, noise factor of filmed MCP test system is established in order to study the technical way to reduce noise factor of MCP. Because the input surface of the MCP is covered with ion barrier film to block the feedback ions, which have a great impact on the noise factor of the MCP. Hence, noise factor of filmed MCP and un-filmed MCP is measured respectively, and noise factors with different materials and different filmed thickness are measured too. Relationships between noise factor and filmed thickness, noise factor and output SNR of image intensifier have been obtained. That is valuable to reduce the noise of filmed MCP. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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