Feasibility Study on a Real-Scale High-Frequency Electromagnets for Magnetic Hyperthermia Base on a Magnetic Scaling Law

Hang Xu, Hiroharu Kamada, Takanori Isobe, Shinichi Nomura

Research output: Contribution to journalArticlepeer-review

Abstract

For effective induction heating properties of cancer therapy, the high-frequency electromagnet system's target specifications are 0.064 T of the peak magnetic flux density with 114 kHz of the operating frequency at the center of the used space. The objective of this work is to give a high-precision design method for magnetic Hyperthermia high-frequency electromagnet includes the self-inductance calculation model, the center magnetic flux density calculation model, and power loss analysis. In addition to this, the proposed design method was tested compared to the experimentally measured results of a magnet prototype. At last, the authors summarize the final design of the real-size high-frequency electromagnet for magnetic hyperthermia. From the results, the electromagnet is designed using 201-A Litz wires coil windings and a magnetic core created with PC40 core material. The total power loss and one-turn voltage of the coil windings are 1.2 MW and 22.2 kV, respectively. It means that the coolant for the electromagnet requires high specific heat and high dielectric strength.

Original languageEnglish
Article number4401105
JournalIEEE Transactions on Applied Superconductivity
Volume32
Issue number6
DOIs
Publication statusPublished - 1 Sep 2022

Keywords

  • High-frequency electromagnet
  • litz wire
  • magnetic core
  • magnetic hyperthermia
  • scaling law

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