Test of the High-Field [Formula Omitted] Dipole Magnet HD3b
We report test results for the one meter long dipole HD3b, a block-type accelerator quality [Formula Omitted] 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 t...
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| Veröffentlicht in: | IEEE transactions on applied superconductivity 2014-06, Vol.24 (3), p.1 |
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| creator | 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 |
| description | We report test results for the one meter long dipole HD3b, a block-type accelerator quality [Formula Omitted] 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. |
| doi_str_mv | 10.1109/TASC.2013.2285881 |
| format | Article |
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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.</description><identifier>ISSN: 1051-8223</identifier><identifier>EISSN: 1558-2515</identifier><identifier>DOI: 10.1109/TASC.2013.2285881</identifier><language>eng</language><publisher>New York: The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</publisher><subject>Acoustics ; Thermal cycling</subject><ispartof>IEEE transactions on applied superconductivity, 2014-06, Vol.24 (3), p.1</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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| subjects | Acoustics Thermal cycling |
| title | Test of the High-Field [Formula Omitted] Dipole Magnet HD3b |
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