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TY - CONF AU - Kuriki, M. AU - Guo, L. AU - Konomi, T. AU - Negishi, K. AU - Seimiya, Y. AU - Urano, M. AU - Yokota, A. ED - Yamazaki, Yoshishige ED - Facco, Alberto ED - McCausey, Amy ED - Schaa, Volker RW TI - UPS Study for CsK2Sb Photocathode J2 - Proc. of LINAC2016, East Lansing, MI, USA, 25-30 September 2016 C1 - East Lansing, MI, USA T2 - Linear Accelerator Conference T3 - 28 LA - english AB - CsK2Sb photo-cathode is one of the ideal cathode for accelerators requiring the high brightness electron beam. It can be driven with a green laser which can be generated as SHG from solid state laser. The QE (Quantum Efficiency) of photo-electron emission is as high as more than 10% with 532nm light. The material is robust and the typical operational lifetime is more than several months. It is also vital against the high intensity beam extraction. The photo-cathode is generated as a thin film in-situ and the material property and optimized condition for the cathode formation is not understood well. In this article, we present UPS analysis of CsK2Sb cathode for deeper understanding. PB - JACoW CP - Geneva, Switzerland SP - 465 EP - 467 KW - cathode KW - electron KW - laser KW - experiment KW - ion DA - 2017/05 PY - 2017 SN - 978-3-95450-169-4 DO - 10.18429/JACoW-LINAC2016-TUPRC022 UR - http://jacow.org/linac2016/papers/tuprc022.pdf ER -