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RIS citation export for WEPMR018: Time Resolved Cryogenic Cooling Analysis of the Cornell Injector Cryomodule

AU - Eichhorn, R.G.
AU - Bartnik, A.C.
AU - Dunham, B.M.
AU - Ge, G.M.
AU - Hoffstaetter, G.H.
AU - Lee, H.
AU - Liepe, M.
AU - Markham, S.R.
AU - O'Connell, T.I.
AU - Quigley, P.
AU - Sabol, D.M.
AU - Sears, J.
AU - Smith, E.N.
AU - Veshcherevich, V.
ED - Petit-Jean-Genaz, Christine
ED - Kim, Dong Eon
ED - Kim, Kyung Sook
ED - Ko, In Soo
ED - Schaa, Volker RW
TI - Time Resolved Cryogenic Cooling Analysis of the Cornell Injector Cryomodule
J2 - Proc. of IPAC2016, Busan, Korea, May 8-13, 2016
C1 - Busan, Korea
T2 - International Particle Accelerator Conference
T3 - 7
LA - english
AB - To demonstrate key parameters of a an energy recovery linac (ERL) at Cornel, an injector based on a photo gun and an SRF cryomodule was designed and built. The goal was to demonstrate high current generation while achieving low emittances. While the emittance goal has been reached, the current achieved so far is 75 mA. Even though this is a world record, it is still below the targeted 100 mA. While ramping up the current we observed excessive heating in the fundamental power coupler which we were able to track down to insufficient cooling of the 80 K intercepts. These intercepts are cooled by a stream of parallel cryogenic flows which we found to be unbalanced. In this paper we will review the finding, describe the analysis we did, modeling of the parallel flow and the modifications made to the module to overcome the heating.
CP - Geneva, Switzerland
SP - 2298
EP - 2301
KW - cryogenics
KW - cryomodule
KW - simulation
KW - operation
DA - 2016/06
PY - 2016
SN - 978-3-95450-147-2
DO - 10.18429/JACoW-IPAC2016-WEPMR018
UR - http://jacow.org/ipac2016/papers/wepmr018.pdf
ER -