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In order to prepare high-quantum-efficiency semiconductor Cs-Te photocathode which can produce a high-quality electron source, based on the INFN-LASA Cs-Te photocathode preparation method, the Cs-Te photocathode preparation method with Te intermittent, Cs continuous deposition is developed. The Cs-Te photocathode with quantum efficiency greater than 5% under 265 nm UV irradiation is successfully prepared in the photocathode preparation device of SINAP and SARI, and the fabrication success rate reaches 100%. As long as the preparation chamber vacuum degree is better than 10–8 Pa, the Cs-Te photocathode with high quantum efficiency can be prepared by this preparation method, which will not be different due to the changes of preparation equipment and operators.
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Keywords:
- photocathode /
- Te intermittent /
- Cs continuous deposition /
- quantum efficiency
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[1] Michelato P 1997 Nucl. Instrum. Meth. A 393 455
Google Scholar
[2] Musumeci P, Navarro J G, Rosenzweig J B, Cultrera L, Bazarov I, Maxson J, Karkare S, Padmore H 2018 Nucl. Instrum. Meth. A 907 209
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Google Scholar
Xiang R, Quan S W, Lin L, Ding Y T, Lu X Y, Jiao F, Wang G M, Zhao K 2004 High Energy Phys. Nuc. 28 771
Google Scholar
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Google Scholar
[17] Tamba T, Miyamatsu J, Sakaue K, et al. 2019 Proceedings of the 10th International Particle Accelerator Conference Melbourne, Australia, May 19–24 2019 TUPTS111
[18] Kong S H, Kinross-Wright J, Nguyen D C, Sheffield R L 1995 J. Appl. Phys. 77 6031
Google Scholar
[19] Michelato P, Di Bona A, Pagani C, et al. 1996 Proceedings of the 5th European Particle Accelerator Conference Barcelona, Spain, June 10–14 1996 p1475
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Google Scholar
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Niu J, Zhang Y J, Chang B K, et al. 2011 Acta Phys. Sin. 60 044209
Google Scholar
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Google Scholar
Hao G H, Han P Y, Li X H, et al. 2020 Acta Phys. Sin. 69 108501
Google Scholar
[26] 王国建, 刘燕文, 李芬, 等 2021 物理学报 70 218503
Google Scholar
Wang J G, Liu Y W, Li F, et al. 2021 Acta Phys. Sin. 70 218503
Google Scholar
[27] Michelato P, Pagani C, Sertore D, di Bona A, Valeri S 1997 Nucl. Instrum. Meth. A 393 464
Google Scholar
[28] Sertore D, Michelato P, Monaco L, et al. 2014 J. Vac. Sci. Technol. A 32 031602
Google Scholar
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