Impact of Coil Compaction on Nb$_3$Sn LARP HQ Magnet

In the past two years the US LARP program carried out five tests on a quadrupole magnet aimed at the high luminosity upgrade of Large Hadron Collider (HiLumi-LHC). The 1-meter long, 120 mm bore Nb$_3$Sn IR quadrupole magnet (HQ) with a short sample gradient of 219 T/m at 1.9 K and a conductor peak f...

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Detalles Bibliográficos
Autores principales: Felice, H, Ambrosio, G, Anerella, M D, Bocian, D, Bossert, R, Caspi, S, Collins, B, Cheng, D, Chlachidze, G, Dietderich, D R, Ferracin, P, Godeke, A, Ghosh, A, Hafalia, A R, Joseph, J M, Krishnan, J, Marchevsky, M, Sabbi, G, Schmalzle, J, Wanderer, P, Wang, X R, Zlobin, A
Lenguaje:eng
Publicado: 2012
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.1109/TASC.2012.2183843
http://cds.cern.ch/record/2773928
Descripción
Sumario:In the past two years the US LARP program carried out five tests on a quadrupole magnet aimed at the high luminosity upgrade of Large Hadron Collider (HiLumi-LHC). The 1-meter long, 120 mm bore Nb$_3$Sn IR quadrupole magnet (HQ) with a short sample gradient of 219 T/m at 1.9 K and a conductor peak field of 15 T is part of the US LHC Accelerator Research Program (LARP). In a series of tests, carried out at 4.4 K, the magnet reached a maximum “short-sample” performance of 86%. The tests exposed several shortcomings that are now being addressed in a Research & Development program. This paper summarizes the magnet test results, reveals findings, R&D; actions and future improvements.

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