CSCM: EXPERIMENTAL AND SIMULATION RESULTS

Rowan, Scott; Auchmann, Bernhard; Brodzinski, Krzysztof; Charifoulline, Zinour; Denz, Reiner; Pfeffer, Howard; Roger, Vincent; Romera, Iván; Schmidt, Ruediger; Siemko, Andrzej; Steckert, Jens; Thiesen, Hugues; Verweij, Arjan; Willering, Gerard; Wollmann, Daniel; Zerlauth, Markus

doi:10.18429/JACoW-IPAC2014-THPRI093

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RIS citation export for THPRI093: CSCM: EXPERIMENTAL AND SIMULATION RESULTS

TY - CONF
AU - Rowan, S.
AU - Auchmann, B.
AU - Brodzinski, K.
AU - Charifoulline, Z.
AU - Denz, R.
AU - Pfeffer, H.
AU - Roger, V.
AU - Romera, I.
AU - Schmidt, R.
AU - Siemko, A.P.
AU - Steckert, J.
AU - Thiesen, H.
AU - Verweij, A.P.
AU - Willering, G.P.
AU - Wollmann, D.
AU - Zerlauth, M.
ED - Petit-Jean-Genaz, Christine
ED - Arduini, Gianluigi
ED - Michel, Peter
ED - Schaa, Volker RW
TI - CSCM: EXPERIMENTAL AND SIMULATION RESULTS
J2 - Proc. of IPAC2014, Dresden, Germany, June 15-20, 2014
C1 - Dresden, Germany
T2 - International Particle Accelerator Conference
T3 - 5
LA - english
AB - The copper-stabilizer continuity measurement - or CSCM - was devised to obtain a direct and complete qualification of the continuity in the 13 kA bypass circuits of the LHC, especially in the copper-stabilizer of the busbar joints and the bolted connections in the diode-leads. The circuit under test is brought to ~20 K, a voltage is applied to open the diodes, and the low-inductance circuit is powered with a pre-defined series of current profiles. The profiles are designed to successively increase the thermal load on the busbar joints up to a level that corresponds to worst-case operating conditions at nominal energy. In this way, the circuit is tested for thermal runaways in the joints - the very process that could prove catastrophic if it occurred under nominal conditions with the full circuit energy. Surveillance software and a numerical model were devised to carry out the analysis and ensure complete protection of the circuit from over-heating. A type test of the CSCM was successfully carried out in April 2013 on one main dipole and one main quadrupole circuit of the LHC. This paper describes the analysis procedure, the numerical model, and results of this first type test.
PB - JACoW
CP - Geneva, Switzerland
SP - 3988
EP - 3990
KW - simulation
KW - dipole
KW - operation
KW - extraction
KW - network
DA - 2014/07
PY - 2014
SN - 978-3-95450-132-8
DO - 10.18429/JACoW-IPAC2014-THPRI093
UR - http://jacow.org/ipac2014/papers/thpri093.pdf
ER -