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Status of the 25 T, 100 mm Bore HTS Solenoid for an Axion Dark Matter Search Experiment

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Title
Status of the 25 T, 100 mm Bore HTS Solenoid for an Axion Dark Matter Search Experiment
Author(s)
Ramesh Gupta; Michael Anerella; John Cozzolino; Piyush Joshi; Shresht Joshi; Stephen Plate; William Sampson; Honghai Song; Peter Wanderer; Woohyun Chung; Jingeun Kim; ByeongRok Ko; SungWoo Youn; Yannis K. Semertzidis
Publication Date
2019-08
Journal
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, v.29, no.5, pp.4602105 -
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Abstract
This paper presents the design and test results of the pancake coils for the 25 T, 100 mm bore solenoid that Brookhaven National Laboratory (BNL) is building for the Insti-tute for Basic Science (IBS) in Korea for an Axion dark matter search. The design is based on second generation (2G) High Temperature Superconducting (HTS) tape with no-insulation winding. The major challenges in the high field, large aperture solenoid are the large stresses and the quench protection. Moreo-ver, the design should be robust for reliable operation in a user facility environment. The paper will also present the construction and test results of two ∼100 mm bore double pancake coils creat-ing a peak field of up to ∼17 T and similar hoop stresses as will be in the 25 T solenoid. The coils were subject to several severe tests, including the simulations of large defects and extended quench studies at ∼4 K. The most striking part of these studies was the demonstration of how fast (a few hundred milliseconds) these coils can turn from the superconducting state to the normal state (quench or thermal runaway). This removes the past concerns of protecting high field HTS coils because of the low quench propa-gation velocities. © 2019 IEEE.
URI
https://pr.ibs.re.kr/handle/8788114/5834
ISSN
1051-8223
Appears in Collections:
Center for Axion and Precision Physics Research(액시온 및 극한상호작용 연구단) > Journal Papers (저널논문)
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