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Development of Preparation Systems with K$_{2}$CsSb Photocathodes and Study on the Preparation Process |
| Fan Zhang1,2, Xiao-Ping Li1,2**, Xiao-Shen Li1,2 |
1Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
2Key Laboratory of Particle Acceleration Physics and Technology, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
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| Cite this article: |
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Fan Zhang, Xiao-Ping Li, Xiao-Shen Li 2019 Chin. Phys. Lett. 36 022901 |
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Abstract The next generation of advanced light sources requires photons with large average flux and high brightness, which needs advanced electron gun matched with excellent photocathode materials. K$_{2}$CsSb photocathode has the advantages of high quantum efficiency, long lifetime and instantaneous response. This study introduces the design of a set of K$_{2}$CsSb photocathode preparation systems and detailed preparation process of K$_{2}$CsSb photocathodes, including sequential deposition process and co-deposition process, and finally develops a K$_{2}$CsSb photocathode. The influence of laser power on the quantum efficiency is also investigated.
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Received: 26 September 2018
Published: 22 January 2019
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| PACS: |
29.25.Bx
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(Electron sources)
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81.05.Hd
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(Other semiconductors)
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07.30.Kf
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(Vacuum chambers, auxiliary apparatus, and materials)
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| [1] | Yan J X and Mahoney K 2009 Proc. ICALEPCS 92 582 | | [2] | Michelato P, Gallina P and Pagani C 1994 Nucl. Instrum. Methods Phys. Res. Sect. A 340 176 | | [3] | https://www.osti.gov/servlets/purl/780780 | | [4] | An Y B, Xu X Y and Sun Q X 2014 J. Opt. 34 325 (in Chinese) | | [5] | Mammei R, Suleiman R, Poelker M, Rao T, Smedley J and McCarter J L 2011 Proc. Ipac 178 1443 | | [6] | Li X P, Wang J Q, Xu J Q, Pei S L, Xiao O Z, He D Y, Lv K, Kong X C and Peng X H 2017 Chin. Phys. Lett. 34 072901 | | [7] | Li X P, Peng X H, Zhang T, Wang G W, Guo P L and Jiang D K 2014 Chin. J. Vacuum Sci. Technol. 11 1155 (in Chinese) | | [8] | Liu B Q, Peng X H, Zhai J Y and Gao J 2016 Chin. J. Vacuum Sci. Technol. 5 538 (in Chinese) |
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