Title:
SUPERCONDUCTING MAGNET SYSTEM FOR PRODUCING HIGH UNIFORMITY AND HIGH MAGNETIC FIELD
Document Type and Number:
WIPO Patent Application WO/2010/066087
Kind Code:
A1
Abstract:
A superconducting magnet system for producing high uniformity and high magnetic field consists of a main coil, an outer coil, a quench protection circuit, a quench heater and a power supply. The main coil is composed of many concentric solenoid coils which are arranged from inside to outside. The outer coil out of the main coil includes a first back roll coil (13), a second back roll coil (14), a first superconducting coil (15) for compensating sixth harmonic component, a second superconducting coil (16) for compensating sixth harmonic component, a shielding ring (17) and a shielding coil (18) from inside to outside. Every loop circuit of the quench protection circuit is composed of a corresponding protection resistor, a diode and each coil which are connected in series each other, and each coil has a corresponding quench protection heater. The classification linear diameter difference of the superconducting coils which contact each other in main coil is less than 0.05mm. The uniformity of the magnetic field in the 50 mm diameter working space is 0.15ppm, because the high order harmonic component of the field is compensated by back roll method.
Inventors:
WANG, Qiuliang (Beiertiao 6#, ZhongguancunHaidian District, Beijing 0, 100190, CN)
王秋良 (中国北京市海淀区中关村北二条六号, Beijing 0, 100190, CN)
王秋良 (中国北京市海淀区中关村北二条六号, Beijing 0, 100190, CN)
Application Number:
CN2009/000083
Publication Date:
June 17, 2010
Filing Date:
January 20, 2009
Export Citation:
Assignee:
INSTITUTE OF ELECTRICAL ENGINEERING, CHINESE ACADEMY OF SCIENCES (Beiertiao 6#, ZhongguancunHaidian District, Beijing 0, 100190, CN)
中国科学院电工研究所 (中国北京市海淀区中关村北二条六号, Beijing 0, 100190, CN)
WANG, Qiuliang (Beiertiao 6#, ZhongguancunHaidian District, Beijing 0, 100190, CN)
中国科学院电工研究所 (中国北京市海淀区中关村北二条六号, Beijing 0, 100190, CN)
WANG, Qiuliang (Beiertiao 6#, ZhongguancunHaidian District, Beijing 0, 100190, CN)
International Classes:
H01F6/06
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (8th Vantone New World Plaza, 2 Fuchengmenwai Street, Beijing 7, 100037, CN)
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