TY  - JOUR
AU  - Maiano, C. G.
AU  - Branlard, J.
AU  - Hüning, M.
AU  - Jensch, K.
AU  - Kostin, D.
AU  - Matheisen, A.
AU  - Möller, W. D.
AU  - Sulimov, A.
AU  - Vogel, E.
AU  - Bosotti, A.
AU  - Chen, J. F.
AU  - Moretti, M.
AU  - Paparella, R.
AU  - Pierini, P.
AU  - Sertore, D.
TI  - Validation of the superconducting 3.9 GHz cavity package for the European X-ray Free Electron Laser
JO  - Physical review accelerators and beams
VL  - 20
IS  - 4
SN  - 2469-9888
CY  - College Park, MD
PB  - American Physical Society
M1  - PUBDB-2018-00489
SP  - 042005
PY  - 2017
N1  - *Brief entry*
AB  - A full test of the cavity package concept under realistic operating condition was a necessary step before the assembly of the European XFEL (EXFEL) 3.9 GHz superconducting system and its installation in the accelerator. One cavity, equipped with magnetic shielding, power coupler and frequency tuner has been tested in a specially designed single cavity cryostat in one of the test benches of the DESY Accelerator Module Test Facility (AMTF). The cavity was operated at high pulsed power up to an accelerating field of 24 MV/m, above the quench accelerating field of 21 MV/m achieved during the continuous wave (CW) vertical qualification test and with a large margin with respect to the EXFEL maximum operating specification of 15 MV/m for the 3.9 GHz system. All subsystems under test—coupler, tuner, waveguide tuners, low level radio-frequency (LLRF) system—were qualified to their design performances.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000400244900002
DO  - DOI:10.1103/PhysRevAccelBeams.20.042005
UR  - https://bib-pubdb1.desy.de/record/399184
ER  -