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T: Fachverband Teilchenphysik

T 123: Beschleunigerphysik X (Injektoren)

T 123.2: Vortrag

Dienstag, 5. März 2013, 17:00–17:15, WIL-C205

Multipactor discharge simulation for the RF Photo Gun at PITZ. — •Igor Isaev and Mikhail Krasilnikov — DESY, Platanenallee 6, 15738 Zeuthen, Germany

Multipactor discharge is the phenomenon of undesirable resonant secondary electron emission. The multipactor discharge may lead to operational problems of the RF systems such as vacuum breakdown, power losses, overheating and damage of RF components. The multipactor discharge simulations for the PITZ RF Photo Gun were performed by CST Studio. The Photo Injector Test facility at DESY, location Zeuthen (PITZ) was built to develop, test and optimize high quality beam source for Free Electron Lasers (FELs). The PITZ gun is a 1.6 cell L-band normal conducting RF cavity with a Cs2Te photocathode. Maximum accelerating field at the cathode is about 60 MV/m. The gun is surrounded by the pair of solenoids for beam focusing to counteract the space charge effect. The research of the multipactor discharge process in the PITZ Gun was performed.