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Energy Deposition Studies for the Hi-Lumi LHC Inner Triplet Magnets

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arxiv 1501.07623 v1 pith:TIWXAABG submitted 2015-01-29 physics.acc-ph

Energy Deposition Studies for the Hi-Lumi LHC Inner Triplet Magnets

classification physics.acc-ph
keywords innermagnettripletflukaluminositymagnetspeakabsorbers
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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A detailed model of the High Luminosity LHC inner triplet region with new large-aperture Nb3Sn magnets, field maps, corrector packages, and segmented tungsten inner absorbers was built and implemented into the FLUKA and MARS15 codes. In the optimized configuration, the peak power density averaged over the magnet inner cable width is safely below the quench limit. For the integrated luminosity of 3000 fb -1, the peak dose in the innermost magnet insulator ranges from 20 to 35 MGy. Dynamic heat loads to the triplet magnet cold mass are calculated to evaluate the cryogenic capability. In general, FLUKA and MARS results are in a very good agreement.

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