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Patent Searching and Data


Title:
SUPERCONDUCTING MAGNET, PARTICLE BEAM TREATMENT SYSTEM, AND METHOD FOR OPERATING SUPERCONDUCTING MAGNET
Document Type and Number:
WIPO Patent Application WO/2015/045017
Kind Code:
A1
Abstract:
 A reference magnetic field set individually for each patient or affected area is gradually varied between patients or affected areas. In other words, a fundamental magnetic field component for which the time rate of change of the magnetic field is small is excited by an external peripheral superconducting coil (6) and a power source (7) therefor. A magnetic field component which has a large time rate of change whereby the magnetic field is varied at high speed in the vicinity of the reference magnetic field and which is necessary for irradiation of each layer in a patient or affected area, is divided from the fundamental magnetic field component, and the magnetic field component having a large time rate of change is excited by an internal peripheral superconducting coil (8) and power source (9) therefor independent from the coil (6). It is thereby possible to provide a superconducting magnet and a particle ray treatment system using the same whereby quench risk can be reduced relative to the conventional technique and a magnetic field can be varied at high speed.

Inventors:
NODA FUMIAKI (JP)
YAMADA TAKAHIRO (JP)
AOKI TAKAMICHI (JP)
Application Number:
JP2013/075817
Publication Date:
April 02, 2015
Filing Date:
September 25, 2013
Export Citation:
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Assignee:
HITACHI LTD (JP)
International Classes:
A61N5/10; H01F6/00
Foreign References:
JP2011072717A2011-04-14
JP2007260222A2007-10-11
Attorney, Agent or Firm:
KASUGA Yuzuru (JP)
Kasuga 讓 (JP)
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