MISC

2017年7月26日

Fundamental study on the magnetic field control method using multiple HTS coils for Magnetic Drug Delivery System

Journal of Physics: Conference Series
  • R. Hirano
  • ,
  • S. B. Kim
  • ,
  • T. Nakagawa
  • ,
  • Y. Tomisaka
  • ,
  • H. Ueda

871
1
開始ページ
969
終了ページ
976
記述言語
英語
掲載種別
DOI
10.1088/1742-6596/871/1/012104
出版者・発行元
Institute of Physics Publishing

The magnetic drug delivery system (MDDS) is a key technology to reduce the side effects in the medical applications, and the magnetic force control is very important issue in MDDS. In this application, the strength of magnetic field and gradient required to MDDS devices are 54 mT and 5.5 T/m, respectively. We proposed the new magnetic force control system that consists of the multiple racetrack HTS magnets. We can control the magnetic field gradient along the longitudinal direction by the arrangement of the multiple racetrack HTS magnets and operating current of each magnet. When the racetrack HTS magnets were used, the critical current was reduced by the self-magnetic field. Therefore, the shape design of HTS magnet to reduce the magnet field into the surface of HTS tapes was required. Therefore, the electromagnetic analysis based on finite element method (FEM) was carried out to design and optimize the shape of multiple racetrack HTS magnet. We were able to suppress the reduction of critical current by placing the magnetic substance at upper and lower side of the HTS magnets. It was confirmed that obtained maximum values of magnetic field strength and field gradient were 33 mT and 0.18 T/m, respectively.

リンク情報
DOI
https://doi.org/10.1088/1742-6596/871/1/012104
ID情報
  • DOI : 10.1088/1742-6596/871/1/012104
  • ISSN : 1742-6596
  • ISSN : 1742-6588
  • SCOPUS ID : 85027996274

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