Experimental Test of the Magnetic Field Active Shimming Method for Air-Core HTS Quadruple Magnet

Junseong Kim; Yojong Choi; Wooseung Lee; Geonwoo Baek; Tae Kuk Ko; Sangjin Lee; Kwang Myoung Park

doi:10.1109/TASC.2020.2966462

Experimental Test of the Magnetic Field Active Shimming Method for Air-Core HTS Quadruple Magnet

Junseong Kim, Yojong Choi, Wooseung Lee, Geonwoo Baek, Tae Kuk Ko, Sangjin Lee, Kwang Myoung Park

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Quadruple magnets are used as superconducting magnets in accelerator systems and to focus the accelerated beam particles. Therefore, studies are being conducted to implement HTS quadruple magnets in hot cell regions that possess high heat loads in accelerator systems. Additionally, studies on air-core HTS quadruple magnet (AHQM), which do not possess an iron yoke, are also being carried out. This magnet is suitable for the use in hot cell regions and generates a higher magnetic field. Further, magnetic field characteristic of the magnet are linear with respect to the operating current. However, the magnetic field of an AHQM can be the sensitively affected by manufacturing and assembly errors because the iron yoke is removed. After the manufacturing of the magnet, magnetic field shimming is used to compensate for magnetic field errors. This paper presents the optimum design and process for the copper wire bunch active shim (CBAS) method. Furthermore, a test model of the CBAS method is constructed based on the design, and the characteristics and applicability of the proposed model are analyzed.

Original language	English
Article number	8957528
Journal	IEEE Transactions on Applied Superconductivity
Volume	30
Issue number	4
DOIs	https://doi.org/10.1109/TASC.2020.2966462
Publication status	Published - 2020 Jun

Bibliographical note

Funding Information:
Manuscript received September 24, 2019; accepted January 7, 2020. Date of publication January 13, 2020; date of current version February 25, 2020. This work was supported in part by the Korea Electric Power Corporation under Grant R17XA05_32 and in part by the “Human Resources Program in Energy Technology” of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), funded by the Ministry of Trade, Industry & Energy, Republic of Korea under Grant 20184030202270. (Corresponding author: Kwang Myoung Park.) J. Kim is with the School of Electrical and Electronic Engineering, Yonsei University, Seoul 30722, South Korea, and also with the JH Engineering Company Ltd., Anyang-si 14119, South Korea (e-mail: junsung0616@yonsei.ac.kr).

Publisher Copyright:
© 2002-2011 IEEE.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/TASC.2020.2966462

Cite this

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title = "Experimental Test of the Magnetic Field Active Shimming Method for Air-Core HTS Quadruple Magnet",

abstract = "Quadruple magnets are used as superconducting magnets in accelerator systems and to focus the accelerated beam particles. Therefore, studies are being conducted to implement HTS quadruple magnets in hot cell regions that possess high heat loads in accelerator systems. Additionally, studies on air-core HTS quadruple magnet (AHQM), which do not possess an iron yoke, are also being carried out. This magnet is suitable for the use in hot cell regions and generates a higher magnetic field. Further, magnetic field characteristic of the magnet are linear with respect to the operating current. However, the magnetic field of an AHQM can be the sensitively affected by manufacturing and assembly errors because the iron yoke is removed. After the manufacturing of the magnet, magnetic field shimming is used to compensate for magnetic field errors. This paper presents the optimum design and process for the copper wire bunch active shim (CBAS) method. Furthermore, a test model of the CBAS method is constructed based on the design, and the characteristics and applicability of the proposed model are analyzed.",

author = "Junseong Kim and Yojong Choi and Wooseung Lee and Geonwoo Baek and Ko, {Tae Kuk} and Sangjin Lee and Park, {Kwang Myoung}",

note = "Funding Information: Manuscript received September 24, 2019; accepted January 7, 2020. Date of publication January 13, 2020; date of current version February 25, 2020. This work was supported in part by the Korea Electric Power Corporation under Grant R17XA05_32 and in part by the “Human Resources Program in Energy Technology” of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), funded by the Ministry of Trade, Industry & Energy, Republic of Korea under Grant 20184030202270. (Corresponding author: Kwang Myoung Park.) J. Kim is with the School of Electrical and Electronic Engineering, Yonsei University, Seoul 30722, South Korea, and also with the JH Engineering Company Ltd., Anyang-si 14119, South Korea (e-mail: junsung0616@yonsei.ac.kr). Publisher Copyright: {\textcopyright} 2002-2011 IEEE.",

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Experimental Test of the Magnetic Field Active Shimming Method for Air-Core HTS Quadruple Magnet

Abstract

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