Test of the High-Field Nb$_3$Sn Dipole Magnet HD3b

We report test results for the one meter long dipole HD3b, a block-type accelerator quality Nb_3Sn magnet built at LBNL with operational bore fields in the range of 13-15 T. The magnet is an upgrade of the previously reported HD2 and HD3a versions, with several modifications implemented to improve c...

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Detalles Bibliográficos
Autores principales: Marchevsky, M, Caspi, S, Cheng, D W, Dietderich, D R, DiMarco, J, Felice, H, Ferracin, P, Godeke, A, Hafalia, A R, Joseph, J, Lizarazo, J, Roy, P K, Sabbi, G, Salmi, T, Turqueti, M, Wang, X, Prestemon, S
Lenguaje:eng
Publicado: 2014
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.1109/TASC.2013.2285881
http://cds.cern.ch/record/2112009
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author Marchevsky, M
Caspi, S
Cheng, D W
Dietderich, D R
DiMarco, J
Felice, H
Ferracin, P
Godeke, A
Hafalia, A R
Joseph, J
Lizarazo, J
Roy, P K
Sabbi, G
Salmi, T
Turqueti, M
Wang, X
Prestemon, S
author_facet Marchevsky, M
Caspi, S
Cheng, D W
Dietderich, D R
DiMarco, J
Felice, H
Ferracin, P
Godeke, A
Hafalia, A R
Joseph, J
Lizarazo, J
Roy, P K
Sabbi, G
Salmi, T
Turqueti, M
Wang, X
Prestemon, S
author_sort Marchevsky, M
collection CERN
description We report test results for the one meter long dipole HD3b, a block-type accelerator quality Nb_3Sn magnet built at LBNL with operational bore fields in the range of 13-15 T. The magnet is an upgrade of the previously reported HD2 and HD3a versions, with several modifications implemented to improve conductor positioning, reduce cable “hard-way” bending radius, and strengthen electrical insulation between cables and coil parts. The magnet exhibited long training behavior, but showed a good “memory” of the trained state upon thermal cycling. Ramp-rate dependence of the quench current, field quality performance characteristics, and protection heater studies were conducted. Quench propagation velocity and quench locations were determined based on the voltage signals; quench localization was further improved using inductive quench antenna and acoustic emission sensors. Short- and long-term acoustic precursors to quenching were observed.
id oai-inspirehep.net-1312441
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2014
record_format invenio
spelling oai-inspirehep.net-13124412019-09-30T06:29:59Zdoi:10.1109/TASC.2013.2285881http://cds.cern.ch/record/2112009engMarchevsky, MCaspi, SCheng, D WDietderich, D RDiMarco, JFelice, HFerracin, PGodeke, AHafalia, A RJoseph, JLizarazo, JRoy, P KSabbi, GSalmi, TTurqueti, MWang, XPrestemon, STest of the High-Field Nb$_3$Sn Dipole Magnet HD3bAccelerators and Storage RingsWe report test results for the one meter long dipole HD3b, a block-type accelerator quality Nb_3Sn magnet built at LBNL with operational bore fields in the range of 13-15 T. The magnet is an upgrade of the previously reported HD2 and HD3a versions, with several modifications implemented to improve conductor positioning, reduce cable “hard-way” bending radius, and strengthen electrical insulation between cables and coil parts. The magnet exhibited long training behavior, but showed a good “memory” of the trained state upon thermal cycling. Ramp-rate dependence of the quench current, field quality performance characteristics, and protection heater studies were conducted. Quench propagation velocity and quench locations were determined based on the voltage signals; quench localization was further improved using inductive quench antenna and acoustic emission sensors. Short- and long-term acoustic precursors to quenching were observed.oai:inspirehep.net:13124412014
spellingShingle Accelerators and Storage Rings
Marchevsky, M
Caspi, S
Cheng, D W
Dietderich, D R
DiMarco, J
Felice, H
Ferracin, P
Godeke, A
Hafalia, A R
Joseph, J
Lizarazo, J
Roy, P K
Sabbi, G
Salmi, T
Turqueti, M
Wang, X
Prestemon, S
Test of the High-Field Nb$_3$Sn Dipole Magnet HD3b
title Test of the High-Field Nb$_3$Sn Dipole Magnet HD3b
title_full Test of the High-Field Nb$_3$Sn Dipole Magnet HD3b
title_fullStr Test of the High-Field Nb$_3$Sn Dipole Magnet HD3b
title_full_unstemmed Test of the High-Field Nb$_3$Sn Dipole Magnet HD3b
title_short Test of the High-Field Nb$_3$Sn Dipole Magnet HD3b
title_sort test of the high-field nb$_3$sn dipole magnet hd3b
topic Accelerators and Storage Rings
url https://dx.doi.org/10.1109/TASC.2013.2285881
http://cds.cern.ch/record/2112009
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