The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Shemyakin, A.V. AU - Baffes, C.M. AU - Carneiro, J.-P. AU - Chase, B.E. AU - Chen, A.Z. AU - Einstein-Curtis, J. AU - Frolov, D. AU - Hanna, B.M. AU - Lebedev, V.A. AU - Prost, L.R. AU - Richard, C.J. AU - Saewert, G.W. AU - Saini, A. AU - Sharma, D. AU - Sun, D. ED - Schaa, Volker RW TI - Design of 162-MHz CW Bunch-by-Bunch Chopper and Prototype Testing Results J2 - Proc. of HB2018, Daejeon, Korea, 17-22 June 2018 C1 - Daejeon, Korea T2 - ICFA Advanced Beam Dynamics Workshop T3 - 61 LA - english AB - The PIP-II program of upgrades proposed for the Fermilab accelerator complex, is centered around a 800 MeV, 2 mA CW SRF linac. A unique feature of the PIP-II linac is the capability to form a flexible bunch structure by removing a pre-programmed set of bunches from a long-pulse or CW 162.5 MHz train, coming from the RFQ, within the 2.1-MeV Medium Energy Beam Transport (MEBT) section. The MEBT chopping system consists of two travelling-wave kickers working in sync followed by a beam absorber. The prototype components of the chopping system, two design variants of the kickers and a 1/4-size absorber, have been installed in the PIP-II Injector Test (PIP2IT) accelerator and successfully tested with beam of up to 5 mA. In part, one of the kickers demonstrated a capability to create an aperiodic pulse sequence suitable for synchronous injection into the Booster while operating at 500 V and average switching frequency of 44 MHz during 0.55 ms bursts at 20 Hz. This report presents the design of the PIP-II MEBT chopping system and results of prototypes testing at PIP2IT. PB - JACoW Publishing CP - Geneva, Switzerland SP - 428 EP - 433 KW - kicker KW - booster KW - injection KW - linac KW - ECR DA - 2018/07 PY - 2018 SN - 978-3-95450-202-8 DO - 10.18429/JACoW-HB2018-THP1WC03 UR - http://jacow.org/hb2018/papers/thp1wc03.pdf ER -