Sequential Abnormal Events in High-Temperature Superconducting MRI

摘要：

　　Because of recent deficit of liquid helium,helium-free MRI magnets with high temperature superconducting(HTS)materials have been expected as one of the solutions.We have developed a 3T HTS-MRI system for human brain research with Bi-2223 tapes and showed its feasibilities at 1.5T.However,in spite that we succeeded energizing to 1.5T more than sixty times and 3T three times,sequential abnormal events were happened for longer than ten minutes during the ramp-down at the third trial to 3T.Here,we show these unique events specific to HTS magnets(in conventional MRI magnets,a quench process finishes immediately)in detail.

关键词： MRI high-temperature superconducting tapes quench thermal run away

作者: Shin-ichi Urayama Hidenao Fukuyama Yasuaki Terao Osamu Ozaki Shinya Kawashima Hitoshi Kitaguchi Takashi Hase Ken-ichi Sato

作者单位: Graduate School of Medicine Kyoto University 54 Kawaharacho,Shogoin,Sakyoku,Kyoto,Kyoto,Japan Francis Bitter Magnet Laboratory,Massachusetts Institute of Technology Cambridge,MA,02139 USA Technical Development Group Kobe Steel,Ltd.1-5-5 Takatsukadai,Nishiku,Kobe,Hyogo,Japan Superconducting Wire Unit,Environment and Energy Material Division National Institute for Materials Japan Superconductor Technology,Inc.2-2-1 Komorie,Moji-ku,Kitakyushu Fukuoka,800-0007 Japan R&D Unit Sumitomo Electric Industries,Ltd.1-1-3 Shimaya,Konohana-ku,Osaka,Japan

会议类型: 国际会议

会议名称: The 2014 ICME International Conference on Complex Medical Engineering (CME2014)ICME复合医学工程国际会议

会议地点: 台北

会议语种:英文

页码: 249-249

在线出版日期: 2014-06-26（万方平台首次上网日期，不代表论文的发表时间）