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

R. Hirano, Seok Beom Kim, T. Nakagawa, Y. Tomisaka, Hiroshi Ueda

Research output: Contribution to journalArticle

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 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.

Original languageEnglish
Article number012104
JournalJournal of Physics: Conference Series
Volume871
Issue number1
DOIs
Publication statusPublished - Jul 26 2017

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delivery
drugs
magnets
coils
magnetic fields
gradients
critical current
tapes
field strength
finite element method
electromagnetism

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Fundamental study on the magnetic field control method using multiple HTS coils for Magnetic Drug Delivery System. / Hirano, R.; Kim, Seok Beom; Nakagawa, T.; Tomisaka, Y.; Ueda, Hiroshi.

In: Journal of Physics: Conference Series, Vol. 871, No. 1, 012104, 26.07.2017.

Research output: Contribution to journalArticle

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