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TY - CONF
AU - Bosland, P.
AU - Arcambal, C.
AU - Ardellier, F.
AU - Berry, S.
AU - Bouygues, A.
AU - Cenni, E.
AU - Darve, C.
AU - Devanz, G.
AU - Hamelin, T.
AU - Hanus, X.
AU - Michelato, P.
AU - Olivier, G.
AU - Piquet, O.
AU - Poupeau, J.P.
AU - Renard, B.
AU - Sahuquet, P.
AU - Thermeau, J.P.
ED - Boland, Mark
ED - Tanaka, Hitoshi
ED - Button, David
ED - Dowd, Rohan
ED - Schaa, Volker RW
ED - Tan, Eugene
TI - Tests at High RF Power of the ESS Medium Beta Cryomodule Demonstrator
J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY - Melbourne, Australia
T2 - International Particle Accelerator Conference
T3 - 10
LA - english
AB - CEA is in charge of the 30 elliptical medium and high-beta cryomodules to be installed in the ESS tunnel in Lund, Sweden. Before launching the assembly of the series cryomodules, CEA developed a medium-beta cryomodule technology demonstrator in a collaboration with IPNO, LASA and ESS. This paper briefly presents the cryomodule assembly and summarizes the main results of the high RF power tests performed in 2018 in a dedicated test stand in CEA Saclay. The main ESS requirements were reached: E_{acc} = 16.7 MV/m in cavities, Pforward = 1.1 MW in power couplers, RF pulses length = 3.6 ms at 14 Hz. The piezo tuners efficiently compensated the Lorentz forces detuning and could stabilize the accelerating field better than 1% over the full length of the expected ESS 2.86 ms beam pulse without any LLRF regulation system. Following this successful validation CEA started the assembly of the first ESS medium-beta series cryomodule
PB - JACoW Publishing
CP - Geneva, Switzerland
SP - 1940
EP - 1943
KW - cavity
KW - cryomodule
KW - cryogenics
KW - linac
KW - status
DA - 2019/06
PY - 2019
SN - 978-3-95450-208-0
DO - DOI: 10.18429/JACoW-IPAC2019-TUPTS006
UR - http://jacow.org/ipac2019/papers/tupts006.pdf
ER -