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TY - CONF
AU - Aderhold, S.
AU - Adolphsen, C.
AU - Burrill, A.
AU - Gonnella, D.
AU - Nelson, J.
ED - Michel, Peter
ED - Arnold, André
ED - Schaa, Volker RW
TI - RF Incoming Inspection of 1.3 GHz Cryomodules for LCLS-II at SLAC National Accelerator Laboratory
J2 - Proc. of SRF2019, Dresden, Germany, 30 June-05 July 2019
CY - Dresden, Germany
T2 - International Conference on RF Superconductivity
T3 - 19
LA - english
AB - The main part of the SRF linac for the Linac Coherent Light Source II (LCLS-II) at SLAC National Accelerator Laboratory will consist of 35 cryomodules with superconducting RF cavities operating at 1.3 GHz. The cryomodules are assembled and tested at Fermi National Accelerator Laboratory and Thomas Jefferson National Accelerator Facility. Following the transport to SLAC, the cryomodules undergo several incoming inspection steps before ultimately being moved to the tunnel for installation in the linac. The RF part of the incoming inspection covers measurements of a number of parameters like cavity frequency spectrum, notch filter frequency of the higher order mode couplers and external quality factor Q_{ext} of the input coupler. The inspection results are compared to measurements at the partner labs prior to shipping and the nominal values in order to verify that the cryomodules have not been damaged during the transport and are ready for installation. We present an overview and analysis of the inspections for the cryomodules received to date.
PB - JACoW Publishing
CP - Geneva, Switzerland
SP - 1014
EP - 1017
KW - cryomodule
KW - cavity
KW - HOM
KW - linac
KW - controls
DA - 2019/08
PY - 2019
SN - ""
SN - 978-3-95450-211-0
DO - doi:10.18429/JACoW-SRF2019-THP059
UR - http://jacow.org/srf2019/papers/thp059.pdf
ER -