000134670 001__ 134670 000134670 005__ 20190316234518.0 000134670 02470 $$2ISI 000134670 0247_ $$2doi$$a10.1109/TASC.2008.922543 000134670 02470 $$a000256625700283 000134670 02470 $$2DAR$$a12997 000134670 037__ $$aARTICLE 000134670 245__ $$aStability analysis of the LHC cables for transient heat depositions 000134670 269__ $$a2008 000134670 260__ $$c2008 000134670 336__ $$aJournal Articles 000134670 520__ $$aThe commissioning and the exploitation of the LHC require a good knowledge of the stability margins of the superconducting magnets with respect to beam induced heat depositions. Previous studies showed that simple numerical models are suitable to carry out stability calculations of multi-strands cables, and highlighted the relevance of the heat transfer model with the surrounding helium. In this paper we present a systematic scan of the stability margin of all types of LHC cables working at 1.9 K against transient heat depositions. We specifically discuss the dependence of the stability margin on the parameters of the model, which provide an estimate of the uncertainty of the values quoted. The stability margin calculations have been performed using a zero-dimensional (0-D) numerical model, and a cooling model taking into account the relevant helium phases which may appear during a stability experiment: it includes Kapitza thermal resistance in superfluid He, boundary layer formation and heat transfer in He I, and considers the transition from nucleating boiling to film boiling during He gas formation. 000134670 6531_ $$aheat transfer coefficients 000134670 6531_ $$ahelium phases 000134670 6531_ $$aLHC superconducting cables 000134670 6531_ $$astability margins 000134670 6531_ $$atransient heat depositions 000134670 700__ $$0245765$$g176304$$aGranieri, Pier Paolo 000134670 700__ $$0240059$$g174071$$aCalvi, M. 000134670 700__ $$aXydi, P. 000134670 700__ $$aBocian, D. 000134670 700__ $$aBottura, L. 000134670 700__ $$aBreschi, M. 000134670 700__ $$aSiemko, A. 000134670 773__ $$j18$$tIEEE Transactions on Applied Superconductivity$$k2$$q1257-1262 000134670 8564_ $$uhttp://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4497824$$zURL 000134670 8564_ $$uhttps://infoscience.epfl.ch/record/134670/files/Granieri_Stability%20Analysis%20of%20the%20LHC%20Cables%20for%20Transient%20Heat%20Depositions.pdf$$zPublisher's version$$s357379$$yPublisher's version 000134670 909C0 $$xU10658$$0252363$$pLPAP 000134670 909C0 $$pCRPP 000134670 909C0 $$0252028$$pSPC 000134670 909CO $$qGLOBAL_SET$$pSB$$particle$$ooai:infoscience.tind.io:134670 000134670 917Z8 $$x105759 000134670 917Z8 $$x173008 000134670 917Z8 $$x176304 000134670 917Z8 $$x176304 000134670 937__ $$aCRPP-ARTICLE-2009-060 000134670 973__ $$rREVIEWED$$sPUBLISHED$$aOTHER 000134670 980__ $$aARTICLE