The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Ding, Z. AU - Attenkofer, K. AU - Bhandari, H. AU - Frisch, H.J. AU - Gaowei, M. AU - Kühn, J. AU - Muller, E.M. AU - Padmore, H.A. AU - Schubert, S.G. AU - Sinsheimer, J. AU - Smedley, J. AU - Walsh, J. AU - Wong, J.J. AU - Xie, J. ED - Belomestnykh, Sergey ED - Hoffman, Caitlin M. ED - Schaa, Volker RW TI - Improving the Smoothness of Multialkali Antimonide Photocathodes: An In-Situ X-Ray Reflectivity Study J2 - Proc. of ERL2015, Stony Brook, NY, USA, June 7-12, 2015 C1 - Stony Brook, NY, USA T2 - ICFA Advanced Beam Dynamics Workshop on Energy Recovery Linacs T3 - 56 LA - english AB - Multialkali antimonide photocathodes have been shown to be excellent electron sources for a wide range of applications because of high quantum efficiency, low emittance, good lifetime, and fast response. In recent years, synchrotron X-ray methods have been used to study the growth mechanism of K2CsSb photocathodes. The traditional sequential growth of CsK2Sb has been shown to result in rough surface, which will have an adverse impact on the emittance of the electron beam. However, co-evaporation of alkali metals on the evaporated Sb layer and sputter deposition may offer a route to solving the roughness problem. Recent studies on K2CsSb grown by these methods are presented and surface roughness is determined by X-ray reflectivity (XRR) and results are compared. PB - JACoW CP - Geneva, Switzerland SP - 27 EP - 29 KW - cathode KW - simulation KW - electron KW - experiment KW - synchrotron DA - 2015/09 PY - 2015 SN - 978-3-95450-183-0 DO - 10.18429/JACoW-ERL2015-TUICLH1030 UR - http://jacow.org/ERL2015/papers/tuiclh1030.pdf ER -