DEVELOPMENT OF RADIATION RESISTANT MAGNETS

2002 Fiscal Year Final Research Report Summary

• Project/Area Number: 12554009
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 展開研究
• Research Field: 素粒子・核・宇宙線
• Research Institution: HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATION
• Principal Investigator: TANAKA Kazuhero INSTITUTE OF PARTICLE AND NUCLEAR STUDIES, ASSOCIATE PROFESSOR, 素粒子原子核研究所, 助教授 (90171743)
• Co-Investigator(Kenkyū-buntansha): NOUMI Hiroyuki INSTITUTE OF PARTICLE AND NUCLEAR STUDIES, ASSOCIATE PROFESSOR, 素粒子原子核研究所, 助教授 (10222192) ; IEIRI Masaharu INSTITUTE OF PARTICLE AND NUCLEAR STUDIES, ASSOCIATE PROFESSOR, 素粒子原子核研究所, 助教授 (50192472) ; TAKASAKI Minoru INSTITUTE OF PARTICLE AND NUCLEAR STUDIES, PROFESSOR, 素粒子原子核研究所, 教授 (70044782) ; KAGAWA Manabu COPPER TUBES ENGINEERING DEPARTMENT, TSUCHIURA WORKS, HITACHlCABLE LIMITED, CHIEF ENGINEER, 土浦工場・製管部技術部, 部長 ; MATSUMOTO Takayuki MAGNET DIVISION, TOKIN CORPORATION, CHIEF ENGINEER, 電磁石担当部, 部長
• Project Period (FY): 2000 – 2002
• Keywords: HIGH INTENSITY BEAM / MINERAL INSULATION / MI CABLE / RADIATION RESISTANT / KAON FACTORY / HIGH INTENSITY BEAM / QUICK DISCONNECT / JHF

Research Abstract

Purpose of the R&D project was to :
(1) develop magnet cables for 2000-3000A and 60 m long with complete mineral insulation ;
(2) fabricate a "test" radiation resistant magnet coil with newly developed magnet cable ;
(3) perform a long term miming test of the magnet assembled with the "test" coil.
The project continued three years. In the first year, we investigated the drawing method of the mineral insulation cable (MIC) of more than 60 m length with relatively large cross section. After several trials, we successfully draw the 60m sample of 2500A class MIC with diirect water cooling by employing the double stage drawing.
In the second year, we prepared several samples of 2500A class MIC in order to establish the mass production technique of the MIC. Bending tests and insulation tests were performed with the short samples prepared from them. Some serious problems such as low insulation Resistance etc. etc. happened. The all of them were, fortunately, solved completely.
In the third and the last year, we fabricated a "test" magnet coil with 60m-2500A MIC, which was mounted to the existing iron yoke. The long term excitation test immediately followed the magnet fabrication and finished without any serious trouble. The results of this R&D work will be reported at the MT18 conference which will be held in November 2003.

Research Products

• [Publications] K.H.Tanaka, E.Kusano他17名: "Development of Radiation-Resistant Magnets for JHF Project"IEEE Transactions on Applied Superconductivity. Vol. 12 No. 1. 278-281 (2002)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] 田中万博他15名: "KEK-JAERI Joint Project(大強度陽子加速器計画)原子核素粒子実験施設建設グループ・ハドロンビームラインサブグループ中間報告書"高エネルギー加速器研究機構. 196 (2002)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] K.H. Tanaka, Y. Yamanoi, E. Kusano, M, Minakawa, H. Noumi, M. Ieiri, Y. Katoh, Y. Suzuki, M. Takasaki, S. Tsukada, K. Yahata, Y. Saitoh and K. Kato: "KEK, High Energy Accelerator Research Organization"IEEE Transactions on Applied Superconductivity. Vol12, No. 1. 278-281 (2002)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] K.H. Tanaka, K Agari, E. Kusano, H. Takahashi, Y. Sato, M. Minakawa, Y. Yamanoi, H. Noumi, M. Ieiri, Y. Katoh, Y. Suzuki, M. Takasaki, S. Sawada, T. Miura, J. Imazato: "KEK-JAER Joint Project, Hadron Beam Sub-Group of the Nuclear & Particle Physics Facility Construction Team, The Status Report on the Technical R&D (KEK Internal 2002-8)"196 (2002)
  • Description: 「研究成果報告書概要(欧文)」より