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Title: Test results of a Nb3Al/Nb3Sn subscale magnet for accelerator application

Abstract

The High Energy Accelerator Research Organization (KEK) has been developing a Nb3Al and Nb3Sn subscale magnet to establish the technology for a high-field accelerator magnet. The development goals are a feasibility demonstration for a Nb3Al cable and the technology acquisition of magnet fabrication with Nb3Al superconductors. KEK developed two double-pancake racetrack coils with Rutherford-type cables composed of 28 Nb3Al wires processed by rapid heating, quenching, and transformation in collaboration with the National Institute for Materials Science and the Fermi National Accelerator Laboratory. The magnet was fabricated to efficiently generate a high magnetic field in a minimum-gap common-coil configuration with two Nb3Al coils sandwiched between two Nb3Sn coils produced by the Lawrence Berkeley National Laboratory. A shell-based structure and a “bladder and key” technique have been used for adjusting coil prestress during both the magnet assembly and the cool down. In the first excitation test of the magnet at 4.5 K performed in June 2014, the highest quench current of the Nb3Sn coil, i.e., 9667 A, was reached at 40 A/s corresponding to 9.0 T in the Nb3Sn coil and 8.2 T in the Nb3Al coil. The quench characteristics of the magnet were studied.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1] more »;  [1] « less
+ Show Author Affiliations
  1. High Energy Acceleration Research Organization (KEK), Tsukuba (Japan)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1214566
Grant/Contract Number:  
AC02-05CH11231; AC02-76CH03000
Resource Type:
Accepted Manuscript
Journal Name:
IEEE Transactions on Applied Superconductivity
Additional Journal Information:
Journal Volume: 25; Journal Issue: 3; Journal ID: ISSN 1051-8223
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; bladder and key; common coil; high field magnet; Nb3Al; shell based structure

Citation Formats

Iio, Masami, Xu, Qingjin, Nakamoto, Tatsushi, Sasaki, Ken -ichi, Ogitsu, Toru, Yamamoto, Akira, Kimura, Nobuhiro, Tsuchiya, Kiyosumi, Sugano, Michinaka, Enomoto, Shun, Higashi, Norio, Terashima, Akio, Tanaka, Kenichi, Okada, Ryutaro, Takahashi, Naoto, Ikemoto, Yukiko, Kikuchi, Akihiro, Takeuchi, Takao, Sabbi, Gianluca, Zlobin, Alexander, and Barzi, Emanuela. Test results of a Nb3Al/Nb3Sn subscale magnet for accelerator application. United States: N. p., 2015. Web. doi:10.1109/TASC.2015.2390074.
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Iio, Masami, Xu, Qingjin, Nakamoto, Tatsushi, Sasaki, Ken -ichi, Ogitsu, Toru, Yamamoto, Akira, Kimura, Nobuhiro, Tsuchiya, Kiyosumi, Sugano, Michinaka, Enomoto, Shun, Higashi, Norio, Terashima, Akio, Tanaka, Kenichi, Okada, Ryutaro, Takahashi, Naoto, Ikemoto, Yukiko, Kikuchi, Akihiro, Takeuchi, Takao, Sabbi, Gianluca, Zlobin, Alexander, & Barzi, Emanuela. Test results of a Nb3Al/Nb3Sn subscale magnet for accelerator application. United States. https://doi.org/10.1109/TASC.2015.2390074
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Iio, Masami, Xu, Qingjin, Nakamoto, Tatsushi, Sasaki, Ken -ichi, Ogitsu, Toru, Yamamoto, Akira, Kimura, Nobuhiro, Tsuchiya, Kiyosumi, Sugano, Michinaka, Enomoto, Shun, Higashi, Norio, Terashima, Akio, Tanaka, Kenichi, Okada, Ryutaro, Takahashi, Naoto, Ikemoto, Yukiko, Kikuchi, Akihiro, Takeuchi, Takao, Sabbi, Gianluca, Zlobin, Alexander, and Barzi, Emanuela. Wed . "Test results of a Nb3Al/Nb3Sn subscale magnet for accelerator application". United States. https://doi.org/10.1109/TASC.2015.2390074. https://www.osti.gov/servlets/purl/1214566.
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@article{osti_1214566,
title = {Test results of a Nb3Al/Nb3Sn subscale magnet for accelerator application},
author = {Iio, Masami and Xu, Qingjin and Nakamoto, Tatsushi and Sasaki, Ken -ichi and Ogitsu, Toru and Yamamoto, Akira and Kimura, Nobuhiro and Tsuchiya, Kiyosumi and Sugano, Michinaka and Enomoto, Shun and Higashi, Norio and Terashima, Akio and Tanaka, Kenichi and Okada, Ryutaro and Takahashi, Naoto and Ikemoto, Yukiko and Kikuchi, Akihiro and Takeuchi, Takao and Sabbi, Gianluca and Zlobin, Alexander and Barzi, Emanuela},
abstractNote = {The High Energy Accelerator Research Organization (KEK) has been developing a Nb3Al and Nb3Sn subscale magnet to establish the technology for a high-field accelerator magnet. The development goals are a feasibility demonstration for a Nb3Al cable and the technology acquisition of magnet fabrication with Nb3Al superconductors. KEK developed two double-pancake racetrack coils with Rutherford-type cables composed of 28 Nb3Al wires processed by rapid heating, quenching, and transformation in collaboration with the National Institute for Materials Science and the Fermi National Accelerator Laboratory. The magnet was fabricated to efficiently generate a high magnetic field in a minimum-gap common-coil configuration with two Nb3Al coils sandwiched between two Nb3Sn coils produced by the Lawrence Berkeley National Laboratory. A shell-based structure and a “bladder and key” technique have been used for adjusting coil prestress during both the magnet assembly and the cool down. In the first excitation test of the magnet at 4.5 K performed in June 2014, the highest quench current of the Nb3Sn coil, i.e., 9667 A, was reached at 40 A/s corresponding to 9.0 T in the Nb3Sn coil and 8.2 T in the Nb3Al coil. The quench characteristics of the magnet were studied.},
doi = {10.1109/TASC.2015.2390074},
journal = {IEEE Transactions on Applied Superconductivity},
number = 3,
volume = 25,
place = {United States},
year = {Wed Jan 28 00:00:00 EST 2015},
month = {Wed Jan 28 00:00:00 EST 2015}
}
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Journal Article:
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Publisher's Version of Record
https://doi.org/10.1109/TASC.2015.2390074
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Works referencing / citing this record:

Equiaxial nano-crystals Nb3Al superconductor prepared by optimized mechanically alloying
journal, December 2018

Research on Phase Reaction of Nb3Al Precursor During Rapid Heating Process
journal, October 2018

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  • DOI: 10.1007/s10948-018-4862-x
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