The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Sheppard, J.C. AU - Beukers, T.G. AU - Colocho, W.S. AU - Decker, F.-J. AU - Lutman, A.A. AU - McKee, B.D. AU - Smith, T.J. AU - Sullivan, M.K. ED - Schaa, Volker RW TI - Diagnoses and Controls of Single e-Pulse Extraction at LCLS-I for the ESTB Program J2 - Proc. of IBIC2016, Barcelona, Spain, Sept. 13-18, 2016 C1 - Barcelona, Spain T2 - International Beam Instrumentation Conference T3 - 5 LA - english AB - A pulsed magnet is used to kick single electron bunches into the SLAC A-line from the 120 Hz LCLS-1 bunch train. These single bunches are transported to the End Station Test Beam facility. It is mandated that extraction from the LCLS beam does not disturb the non-kicked pulses. An 8 mrad kick is required to extract a bunch; without compensation the following bunch experiences a 2 urad kick; with compensation this kick is reduced to about 0.1 urad which is well within the jitter level of about 0.3 urad. Electron and photon diagnostics were used to identify problems arising from eddy currents, beam feedback errors, and inadequate monitoring and control protocol. This paper discusses the efforts to diagnose, remedy, and control the pulse snatching. PB - JACoW CP - Geneva, Switzerland SP - 446 EP - 449 KW - extraction KW - kicker KW - feedback KW - operation KW - controls DA - 2017/02 PY - 2017 SN - 978-3-95450-177-9 DO - 10.18429/JACoW-IBIC2016-TUPG44 UR - http://jacow.org/ibic2016/papers/tupg44.pdf ER -