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

被引：0

作者：

Hirano, R. ^{[1
]}

Kim, S. B. ^{[1
]}

Nakagawa, T. ^{[1
]}

Tomisaka, Y. ^{[1
]}

Ueda, H. ^{[1
]}

机构：

[1] Okayama Univ, Grad Sch Nat Sci & Technol, Kita Ku, 3-1-1 Tsushimanaka, Okayama 7008530, Japan

来源：

29TH INTERNATIONAL SYMPOSIUM ON SUPERCONDUCTIVITY | 2017年 / 871卷

关键词：

D O I：

10.1088/1742-6596/871/1/012104

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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.

引用

页数：6