Development of a Superconducting Magnet System for Microwave Application

Author

Ren, Yong ; Wang, Futang ; Chen, Wenge ; Tan, Yunfei ; Chen, Zhiyou ; Pan, Yinnian ; Chen, Zuomin ; Zhu, Jiawu ; He, Peng ; Kuang, Guangli

Author_Institution

High Magn. Fields Lab., CAS, Hefei, China

Volume

20

Issue

3

fYear

2010

fDate

6/1/2010 12:00:00 AM

Firstpage

1912

Lastpage

1915

Abstract

A superconducting magnet with an available warm bore of 100 mm and a central field of 5 T has been designed, manufactured and tested for the research of microwave application. The magnet is composed of three coaxial coils based on magnetic field homogeneity considerations, namely one main coil and two compensation coils. All coils are connected in series and can be charged with a single power supply. The magnetic field homogeneity is less than ??2.5% in a 20 mm diameter and 250 mm length of a cylindrical volume. In addition, a two-stage GM cryocooler with a capacity of 1 W at 4 K was used to cool the superconducting magnet. The cryocooler used can prevent the liquid helium from boil-off and lead to a zero loss during static operation. In this paper, the magnet design, manufacture, mechanical behavior analysis, and the performance test results of the magnet are presented.

Keywords

design; magnetic field effects; microwaves; superconducting magnets; GM cryocooler; coaxial coils; cylindrical volume; liquid helium; magnet design; magnetic field homogeneity; mechanical behavior analysis; microwave application; size 20 mm; size 250 mm; static operation; superconducting magnet system; Magnetic field homogeneity; structural design & analysis; superconducting magnet; zero loss;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2009.2039558

Filename

5422806