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30 May 2011

Volume 98, Issue 22, Articles (22xxxx)

Issue Cover Spotlight Figure

Appl. Phys. Lett. 98, 223101 (2011); http://dx.doi.org/10.1063/1.3595266 (3 pages)

Takahiro Ohori, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, Yutaka Hayashi, and Kazuhiko Matsumoto
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Thermal emittance measurements of a cesium potassium antimonide photocathode

Ivan Bazarov, Luca Cultrera, Adam Bartnik, Bruce Dunham, Siddharth Karkare, Yulin Li, Xianghong Liu, Jared Maxson, and William Roussel

Appl. Phys. Lett. 98, 224101 (2011); http://dx.doi.org/10.1063/1.3596450 (3 pages) | Cited 4 times

Online Publication Date: 2 June 2011

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Thermal emittance measurements of a CsK2Sb photocathode at several laser wavelengths are presented. The emittance is obtained with a solenoid scan technique using a high voltage dc photoemission gun. The thermal emittance is 0.56±0.03 mm mrad/mm(rms) at 532 nm wavelength. The results are compared with a simple photoemission model and found to be in a good agreement.
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85.60.Ha Photomultipliers; phototubes and photocathodes
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