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Title: Magnetic Field Drifts of Small HTS Dipole Magnet Under Repeated Excitation
Authors: Sogabe, Yusuke  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0003-1692-629X (unconfirmed)
Wakabayashi, Koki
Amemiya, Naoyuki  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0002-3000-864X (unconfirmed)
Author's alias: 曽我部, 友輔
若林, 洸希
雨宮, 尚之
Keywords: Accelerator magnet
coated conductor
electromagnetic field analysis
field quality
shielding-currentinduced field
Issue Date: Jun-2022
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Journal title: IEEE Transactions on Applied Superconductivity
Volume: 32
Issue: 4
Thesis number: 4600305
Abstract: Shielding-current-induced fields (SCIFs) in magnets wound with coated conductors deteriorate the field quality of the magnets. Particularly, in magnets that are excited repeatedly, and must generate time-varying magnetic fields, for example, in certain types of accelerator magnets, the influence of the temporal behavior of the SCIFs on magnetic field is quite complicated. We focused on the magnetic field drifts and conducted magnetic field measurements using a small dipole magnet wound with coated conductors cooled using a cryocooler. The magnet was operated under various patterns of excitation, and magnetic fields were measured using a rotating pickup coil, which enabled us to measure the dipole and sextupole components of the magnetic field. Numerical electromagnetic field analyses were conducted to examine the current distributions in conductors, which influenced the temporal behavior of the magnetic field.
Rights: © 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。
URI: http://hdl.handle.net/2433/270111
DOI(Published Version): 10.1109/TASC.2022.3141967
Appears in Collections:Journal Articles

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