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Title: Design, fabrication, and characterization of a high-field high-temperature superconducting Bi-2212 accelerator dipole magnet

Abstract

The use of high-field superconducting magnets has furthered the development of medical diagnosis, fusion research, accelerators, and particle physics. High-temperature superconductors enable magnets more powerful than those possible with Nb-Ti (superconducting transition temperature Tc of 9.2 K) and Nb3Sn (Tc of 18.4 K) conductors due to their very high critical field Bc2 of greater than 100 T near 4.2 K. However, the development of high-field accelerator magnets using high-temperature superconductors is still at its early stage. We report the construction of the world's first high-temperature superconducting Bi2Sr2CaCu2Ox (Bi-2212 with Tc of ~82 K) accelerator dipole magnet. The magnet is based on a canted-cosine-theta design with Bi-2212 Rutherford cables. A high critical current was achieved by an overpressure processing heat treatment. The magnet was constructed from a nine-strand Rutherford cable made from industrial 0.8 mm wires. At 4.2 K, it reached a quench current of 3600 A and a dipole field of 1.64 T in a bore of 31 mm. The magnet did not exhibit the undesirable quench training common in Nb-Ti and Nb3Sn accelerator magnets. It quenched a dozen times without degradation. The magnet exhibited low magnetic field hysteresis (<0.1%) as measured by a cryogenic Hall sensor. It was fastmore » cycled to 1.47 T at 0.54 T/s without quenches. This work validates the canted-cosine-theta Bi-2212 dipole magnet design, illustrates the fabrication scheme, and establishes an initial performance benchmark.« less

Authors:
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Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF); USDOE Office of Science (SC), Office of SBIR/STTR Programs (SBIR/STTR)
OSTI Identifier:
1902180
Alternate Identifier(s):
OSTI ID: 1985501
Grant/Contract Number:  
AC02-05CH11231; SC0010421; SC0009705; DMR-1644779
Resource Type:
Published Article
Journal Name:
Physical Review Accelerators and Beams
Additional Journal Information:
Journal Name: Physical Review Accelerators and Beams Journal Volume: 25 Journal Issue: 12; Journal ID: ISSN 2469-9888
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; Electromagnetic field calculations

Citation Formats

Shen, Tengming, Garcia Fajardo, Laura, Myers, Cory, Hafalia, Aurelio, Rudeiros Fernández, Jose Luis, Arbelaez, Diego, Brouwer, Lucas, Caspi, Shlomo, Ferracin, Paolo, Gourlay, Stephen, Marchevsky, Maxim, Pong, Ian, Prestemon, Soren, Teyber, Reed, Turqueti, Marcos, Wang, Xiaorong, Jiang, Jianyi, Bosque, Ernesto, Lu, Jun, Davis, Daniel, Trociewitz, Ulf, Hellstrom, Eric, and Larbalestier, David. Design, fabrication, and characterization of a high-field high-temperature superconducting Bi-2212 accelerator dipole magnet. United States: N. p., 2022. Web. doi:10.1103/PhysRevAccelBeams.25.122401.
Shen, Tengming, Garcia Fajardo, Laura, Myers, Cory, Hafalia, Aurelio, Rudeiros Fernández, Jose Luis, Arbelaez, Diego, Brouwer, Lucas, Caspi, Shlomo, Ferracin, Paolo, Gourlay, Stephen, Marchevsky, Maxim, Pong, Ian, Prestemon, Soren, Teyber, Reed, Turqueti, Marcos, Wang, Xiaorong, Jiang, Jianyi, Bosque, Ernesto, Lu, Jun, Davis, Daniel, Trociewitz, Ulf, Hellstrom, Eric, & Larbalestier, David. Design, fabrication, and characterization of a high-field high-temperature superconducting Bi-2212 accelerator dipole magnet. United States. https://doi.org/10.1103/PhysRevAccelBeams.25.122401
Shen, Tengming, Garcia Fajardo, Laura, Myers, Cory, Hafalia, Aurelio, Rudeiros Fernández, Jose Luis, Arbelaez, Diego, Brouwer, Lucas, Caspi, Shlomo, Ferracin, Paolo, Gourlay, Stephen, Marchevsky, Maxim, Pong, Ian, Prestemon, Soren, Teyber, Reed, Turqueti, Marcos, Wang, Xiaorong, Jiang, Jianyi, Bosque, Ernesto, Lu, Jun, Davis, Daniel, Trociewitz, Ulf, Hellstrom, Eric, and Larbalestier, David. Wed . "Design, fabrication, and characterization of a high-field high-temperature superconducting Bi-2212 accelerator dipole magnet". United States. https://doi.org/10.1103/PhysRevAccelBeams.25.122401.
@article{osti_1902180,
title = {Design, fabrication, and characterization of a high-field high-temperature superconducting Bi-2212 accelerator dipole magnet},
author = {Shen, Tengming and Garcia Fajardo, Laura and Myers, Cory and Hafalia, Aurelio and Rudeiros Fernández, Jose Luis and Arbelaez, Diego and Brouwer, Lucas and Caspi, Shlomo and Ferracin, Paolo and Gourlay, Stephen and Marchevsky, Maxim and Pong, Ian and Prestemon, Soren and Teyber, Reed and Turqueti, Marcos and Wang, Xiaorong and Jiang, Jianyi and Bosque, Ernesto and Lu, Jun and Davis, Daniel and Trociewitz, Ulf and Hellstrom, Eric and Larbalestier, David},
abstractNote = {The use of high-field superconducting magnets has furthered the development of medical diagnosis, fusion research, accelerators, and particle physics. High-temperature superconductors enable magnets more powerful than those possible with Nb-Ti (superconducting transition temperature Tc of 9.2 K) and Nb3Sn (Tc of 18.4 K) conductors due to their very high critical field Bc2 of greater than 100 T near 4.2 K. However, the development of high-field accelerator magnets using high-temperature superconductors is still at its early stage. We report the construction of the world's first high-temperature superconducting Bi2Sr2CaCu2Ox (Bi-2212 with Tc of ~82 K) accelerator dipole magnet. The magnet is based on a canted-cosine-theta design with Bi-2212 Rutherford cables. A high critical current was achieved by an overpressure processing heat treatment. The magnet was constructed from a nine-strand Rutherford cable made from industrial 0.8 mm wires. At 4.2 K, it reached a quench current of 3600 A and a dipole field of 1.64 T in a bore of 31 mm. The magnet did not exhibit the undesirable quench training common in Nb-Ti and Nb3Sn accelerator magnets. It quenched a dozen times without degradation. The magnet exhibited low magnetic field hysteresis (<0.1%) as measured by a cryogenic Hall sensor. It was fast cycled to 1.47 T at 0.54 T/s without quenches. This work validates the canted-cosine-theta Bi-2212 dipole magnet design, illustrates the fabrication scheme, and establishes an initial performance benchmark.},
doi = {10.1103/PhysRevAccelBeams.25.122401},
journal = {Physical Review Accelerators and Beams},
number = 12,
volume = 25,
place = {United States},
year = {Wed Dec 07 00:00:00 EST 2022},
month = {Wed Dec 07 00:00:00 EST 2022}
}

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