TY - CPAPER
AU - Simon, C.S.
AU - Boulch, C.
AU - Carbonnier, P.
AU - Contrepois, P.
AU - Daniel-Thomas, P.
AU - Éozénou, F.
AU - Gasser, Y.
AU - Gouit, F.
AU - Kruse, J.
AU - Napoly, O.
AU - Nölle, D.
AU - Novo, J.
AU - Rouvière, N.
AU - Schalwat, M.
AU - Servouin, C.
AU - Vilcins, S.
TI - Production Process for the European XFEL Re-Entrant Cavity BPM
J2 - Proc. of IBIC2014
AB - As In-Kind contributor to the E-XFEL project, CEA is committed to the procurement of around one third (31) cold beam position monitors (BPM) of the re-entrant RF cavities type and to the assembly on the Saclay site of the 101 cryomodules of the superconducting linac. Each cryomodule is equipped with a beam position monitor connected to a quadrupole at the high-energy end of the cavity string. The industrial process of those BPMs, used in an ultra-clean environment at cryogenic temperature, includes several steps and involves a quality control in collaboration with industrial partners. This paper describes the different steps of the re-entrant cavity BPM fabrication process: machining, copper coating, thermal treatment, EB welding, cleaning and mounting in clean room on the quadrupole. Problems encountered and the lessons learnt will be also reported.
PB - JACoW
CY - Geneva, Switzerland
SP - 307
EP - 310
KW - cavity
KW - cryomodule
KW - quadrupole
KW - vacuum
KW - controls
DA - 2014/10
PY - 2014
SN - 978-3-95450-141-0
UR - http://jacow.org/IBIC2014/papers/tupf05.pdf
ER -