The fundamental study to control the magnetic field for MDDS using shielding currents of HTS tapes and bulks

Seok Beom Kim, I. Eritate, T. Abe, S. Shima, M. Takahashi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

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 a very important issue in MDDS. In general, the high magnetic field along the axial direction and high magnetic field gradient along the longitudinal direction are very useful for MDDS. So, we proposed the new magnetic force control system that consists of superconducting magnet, high temperature superconductors (HTS) bulks or tapes and ferromagnetic substances. In this new system, the shielding currents in HTS bulks and tapes due to diamagnetism of the superconductor generate the magnetic field with same direction of external magnetic field, and we can control the magnetic field gradient along the longitudinal direction by the arrangement of the HTS bulks, tapes and ferromagnetic substances. In this study, the stacked GdBCO tapes without stabilizer were used in experiments and electromagnetic analysis based on finite element method (FEM) was carried out to optimize the arrangement of the superconductors and the irons. It was confirmed that the control of magnetic field gradient along the longitudinal direction was possible by arranging the HTS bulks, tapes and irons on the superconducting magnet and then it was possible to obtain a magnetic field higher than the external field.

Original languageEnglish
Pages (from-to)27-32
Number of pages6
JournalPhysica C: Superconductivity and its Applications
Volume506
DOIs
Publication statusPublished - Nov 15 2014

Fingerprint

High temperature superconductors
high temperature superconductors
Shielding
Tapes
tapes
shielding
delivery
drugs
Magnetic fields
magnetic fields
Superconducting magnets
Force control
superconducting magnets
gradients
Superconducting materials
Diamagnetism
Iron
iron
diamagnetism
Medical applications

Keywords

  • Field amplification
  • Field control
  • Field gradient
  • HTS bulks and tapes
  • MDDS

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology
  • Electronic, Optical and Magnetic Materials

Cite this

The fundamental study to control the magnetic field for MDDS using shielding currents of HTS tapes and bulks. / Kim, Seok Beom; Eritate, I.; Abe, T.; Shima, S.; Takahashi, M.

In: Physica C: Superconductivity and its Applications, Vol. 506, 15.11.2014, p. 27-32.

Research output: Contribution to journalArticle

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