The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Han, B. AU - Murray, S.N. AU - Pennisi, T.R. AU - Peplov, V.V. AU - Saethre, R.B. AU - Stinson, C. AU - Stockli, M.P. AU - Welton, R.F. ED - Schaa, Volker RW ED - Makino, Kyoko ED - Snopok, Pavel ED - Berz, Martin TI - Simulations of Beam Chopping for Potential Upgrades of the SNS LEBT Chopper J2 - Proc. of ICAP2018, Key West, FL, USA, 20-24 October 2018 CY - Key West, FL, USA T2 - International Computational Accelerator Physics Conference T3 - 13 LA - english AB - The LEBT chopper is a critical element of the SNS accelerator system. In this work, the benefit of increasing the chopping voltage amplitude for the present chopping pattern is shown with beam simulations, and an ongoing hardware upgrade of the chopper pulser units is discussed. In addition, with the prospect of higher voltage capability of the new pulser design, two alternative chopping patterns which reduce the switching frequency of the chopper pulsers down to 1/2 or 1/4 of the present chopping pattern, are also explored with beam simulations. PB - JACoW Publishing CP - Geneva, Switzerland SP - 325 EP - 329 KW - rfq KW - simulation KW - LEBT KW - gun KW - operation DA - 2019/01 PY - 2019 SN - 978-3-95450-200-4 DO - DOI: 10.18429/JACoW-ICAP2018-WEPAF02 UR - http://jacow.org/icap2018/papers/wepaf02.pdf ER -