Progress in Wind-and-React Bi-2212 Accelerator Magnet Technology

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We report on our progress in the development of the technology for the application of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+x}(Bi-2212) in Wind-and-React accelerator magnets. A series of superconducting subscale coils has been manufactured at LBNL and reacted at the wire manufacturer SWCC. Selected coils are impregnated and tested in self-field, even though the coils exhibited leakage during the partial melt heat treatment. Other coils have been disassembled after reaction and submitted to critical current (Ic) tests on individual cable sections. We report on the results of the current carrying capacity of the coils. Voltage-current (VI) transitions were reproducibly measured up ... continued below

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Godeke, A.; Cheng, D.; Dietderich, D.R.; Hannaford, C.R.; Prestemon, S.O.; Sabbi, G. et al. August 16, 2009.

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We report on our progress in the development of the technology for the application of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+x}(Bi-2212) in Wind-and-React accelerator magnets. A series of superconducting subscale coils has been manufactured at LBNL and reacted at the wire manufacturer SWCC. Selected coils are impregnated and tested in self-field, even though the coils exhibited leakage during the partial melt heat treatment. Other coils have been disassembled after reaction and submitted to critical current (Ic) tests on individual cable sections. We report on the results of the current carrying capacity of the coils. Voltage-current (VI) transitions were reproducibly measured up to a quench currents around 1400 A, which is 25% of the expected performance. The results indicate that the coils are limited by the inner windings. We further compare possibilities to use Bi-2212 and Nb{sub 3}Sn tilted solenoid, and YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} (YBCO) racetrack inserts to increase the magnetic field in HD2, a 36 mm bore Nb{sub 3}Sn dipole magnet which recently achieved a bore magnetic field of 13.8 T. The application of Bi-2212 and/or YBCO in accelerator type magnets, if successful, will open the road to higher magnetic fields, far surpassing the limitations of Nb{sub 3}Sn magnet technology.

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  • Journal Name: IEEE Transactions on Applied Superconductivity; Journal Volume: 19; Journal Issue: 3

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  • Report No.: LBNL-3823E
  • Grant Number: DE-AC02-05CH11231
  • DOI: 10.1109/TASC.2009.2018070 | External Link
  • Office of Scientific & Technical Information Report Number: 986319
  • Archival Resource Key: ark:/67531/metadc1013906

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  • August 16, 2009

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  • Oct. 14, 2017, 8:36 a.m.

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  • Nov. 7, 2017, 7:16 p.m.

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Godeke, A.; Cheng, D.; Dietderich, D.R.; Hannaford, C.R.; Prestemon, S.O.; Sabbi, G. et al. Progress in Wind-and-React Bi-2212 Accelerator Magnet Technology, article, August 16, 2009; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc1013906/: accessed September 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.