The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Navarro Fernandez, A. AU - Belohrad, D. AU - Bracco, C. AU - Renner, E. AU - Roncarolo, F. AU - Tassan-Viol, J. ED - Kim, Changbum ED - Schaa, Volker R. W. ED - Kim, Dong-Eon ED - Lee, Jaeyu TI - PSB H0-H⁻ Monitor Calibration and Commissioning J2 - Proc. of IBIC2021, Pohang, Rep. of Korea, 24-28 May 2021 CY - Pohang, Rep. of Korea T2 - International Beam Instrumentation Conference T3 - 10 LA - english AB - During the LHC Long Shutdown 2 (LS2), the H⁻ LINAC4 replaced the proton LINAC2 as Proton Synchrotron Booster (PSB) injector. In each of the four PSB rings, the injection region was upgraded to accommodate the necessary elements for a proper H⁻ charge exchange injection systems. Four internal beam dumps (one per ring), installed downstream the stripping foil, block the unstripped H⁻ particles not injected in the ring. The H0-H⁻ monitors consists in 4 titanium plates placed few centimetres upstream of the dump, intercepting partially stripped H⁰ or not stripped H⁻ ions. They allow a continuous monitoring of the stripping efficiency and, connected to an interlock system, block the injection process in case of heavy degradation or breakage of the foil, which would heavily damage the dumps. The contribution will focus on the commissioning and operation these new systems. This will include the calibration campaigns, performed by comparison to beam current transformers during special periods with low intensity beams and no stripping foils. During normal operation it was already possible to monitor stripping inefficiencies below 1% and compare different beams and stripping foil types. PB - JACoW Publishing CP - Geneva, Switzerland SP - 429 EP - 433 KW - injection KW - electron KW - linac KW - proton KW - operation DA - 2021/10 PY - 2021 SN - 2673-5350 SN - 978-3-95450-230-1 DO - doi:10.18429/JACoW-IBIC2021-WEPP24 UR - https://jacow.org/ibic2021/papers/wepp24.pdf ER -