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Proceedings Paper

Evaluation system of negative electron affinity photocathode
Author(s): Rongguo Fu; Benkang Chang; Yunsheng Qian; Guihua Wang; Zhiyuan Zong
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Paper Abstract

This article first describes the background of the research and manufacture of evaluation system of Negative Electron Affinity photocathode. This article designs a set of super high vacuum system for activating NEA photocathode on the base of activation theory, the process of design and debugging is given. The system is composed of three parts: super high vacuum system for GaAs material activation, multi-meter testing system, surface analysis system. The system is used for on-line evaluation of activating of NEA photocathode. The technical parameters and structure of the evaluation system of NEA photocathode are given in the paper. The system is finished and experiments are made. At last the picture of the system is given.

Paper Details

Date Published: 19 October 2001
PDF: 9 pages
Proc. SPIE 4580, Optoelectronics, Materials, and Devices for Communications, (19 October 2001); doi: 10.1117/12.444932
Show Author Affiliations
Rongguo Fu, Nanjing Univ. of Science and Technology (China)
Benkang Chang, Nanjing Univ. of Science and Technology (China)
Yunsheng Qian, Nanjing Univ. of Science and Technology (China)
Guihua Wang, Nanjing Univ. of Science and Technology (China)
Zhiyuan Zong, Nanjing Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 4580:
Optoelectronics, Materials, and Devices for Communications
Tien Pei Lee; Qiming Wang, Editor(s)

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