Cs<SUB>2</SUB>Te photocathode fabrication system at Peking University

DAI Jin; QUAN Sheng-Wen; CHANG Cheng; LIU Ke-Xin; ZHAO Kui

doi:10.1088/1674-1137/36/5/017

Chinese Physics C> 2012, Vol. 36> Issue(5) : 475-478 DOI: 10.1088/1674-1137/36/5/017

Cs₂Te photocathode fabrication system at Peking University

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A cesium telluride (Cs₂Te) photocathode with a quantum efficiency of 13% at 253.7 nm (radiant incidence 200 μ/cm²) is fabricated by tellurium and cesium vapor deposition onto a stainless-steel substrate. The cesium telluride cathode will be used to provide a high-brightness electron beam source for the 3+1/2 photo-injector at Peking University. The design of the system, the fabrication procedures and the preliminary experimental results are presented in this paper.

References

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DAI Jin, QUAN Sheng-Wen, CHANG Cheng, LIU Ke-Xin and ZHAO Kui. Cs₂Te photocathode fabrication system at Peking University[J]. Chinese Physics C, 2012, 36(5): 475-478. doi: 10.1088/1674-1137/36/5/017

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Received: 2011-07-27
Revised: 2011-08-30

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Cs₂Te photocathode fabrication system at Peking University

Received Date: 2011-07-27

Accepted Date: 2011-08-30

Available Online: 2012-05-05

Abstract: A cesium telluride (Cs₂Te) photocathode with a quantum efficiency of 13% at 253.7 nm (radiant incidence 200 μ/cm²) is fabricated by tellurium and cesium vapor deposition onto a stainless-steel substrate. The cesium telluride cathode will be used to provide a high-brightness electron beam source for the 3+1/2 photo-injector at Peking University. The design of the system, the fabrication procedures and the preliminary experimental results are presented in this paper.

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