The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Shao, J.H. AU - Antipov, S.P. AU - Baryshev, S.V. AU - Chen, H.B. AU - Conde, M.E. AU - Doran, D.S. AU - Gai, W. AU - Jing, C.-J. AU - Liu, W. AU - Power, J.G. AU - Qiu, J.Q. AU - Shi, J. AU - Wang, D. AU - Wang, F.Y. AU - Whiteford, C. AU - Wisniewski, E.E. AU - Xiao, L. ED - Henderson, Stuart ED - Akers, Evelyn ED - Satogata, Todd ED - Schaa, Volker R.W. TI - Observation of Dark Current Dependence on Stored Energy in an L-Band RF Gun J2 - Proc. of IPAC2015, Richmond, VA, USA, May 3-8, 2015 C1 - Richmond, VA, USA T2 - International Particle Accelerator Conference T3 - 6 LA - english AB - A pin cathode has been installed into an L-band photocathode gun to study the influence of stored energy on field emission. The stored energy was varied by tuning the recess of the cathode in order to have the same E-field on the cathode tip. We have observed 5 times difference of dark current level at the same E-field, while by varying the stored energy by three fold. Dynamics study reveals the difference is not caused by transmission, but by emission process itself. We'll present experiment results and discuss possible mechanisms about the phenomena. PB - JACoW CP - Geneva, Switzerland SP - 2956 EP - 2959 KW - cathode KW - gun KW - solenoid KW - experiment KW - simulation DA - 2015/06 PY - 2015 SN - 978-3-95450-168-7 DO - 10.18429/JACoW-IPAC2015-WEPMN016 UR - http://jacow.org/ipac2015/papers/wepmn016.pdf ER -