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TY - CONF
AU - Roggen, T.
AU - Calaga, R.
AU - Caspers, F.
AU - Kaltenbacher, T.
AU - Vollinger, C.
ED - Eshraqi, Mohammad
ED - Trahern, Garry
ED - Schaa, Volker RW
TI - The SPS 200 MHz TWC Impedance after the LIU Upgrade
J2 - Proc. of HB2016, Malmö, Sweden, July 3-8, 2016
C1 - Malmö, Sweden
T2 - ICFA Advanced Beam Dynamics Workshop on High-Intensity and High-Brightness Hadron Beams
T3 - 57
LA - english
AB - As a part of the LHC Injectors Upgrade project (LIU) the 200 MHz Travelling Wave Cavities (TWC) of the Super Proton Synchrotron (SPS) will be upgraded. The two existing five-section cavities will be rearranged into four three-section cavities (using two existing spare sections), thereby increasing the total voltage from 7 MV (I_{RF} = 1.5 A) to 10 MV (I_{RF} = 3.0 A). Projections of the HL-LHC (High Luminosity Large Hadron Collider) era are conceived by the macro-particle simulation code BLonD, that makes use of an impedance model of the SPS, developed from a thorough survey of machine elements. This paper analyses the impedance contribution of the 200 MHz cavities in the two configurations, using electromagnetic simulations. Measurements of the existing cavities in the SPS and a single-section prototype are also presented.
PB - JACoW
CP - Geneva, Switzerland
SP - 76
EP - 80
KW - cavity
KW - HOM
KW - simulation
KW - impedance
KW - pick-up
DA - 2016/08
PY - 2016
SN - 978-3-95450-185-4
DO - 10.18429/JACoW-HB2016-MOPR011
UR - http://jacow.org/hb2016/papers/mopr011.pdf
ER -