Design of Cold Mass Supports for a Superconducting Undulator Prototype at SINAP

Author

Yiyong Liu ; Jian Wang ; Li Wang ; Sen Sun ; Shuhua Wang ; Lixin Yin

Author_Institution

Shanghai Key Lab. of Cryogenics & Supercond. RF Technol., Shanghai Inst. of Appl. Phys., Shanghai, China

Volume

25

Issue

3

fYear

2015

fDate

Jun-15

Firstpage

1

Lastpage

4

Abstract

A superconducting undulator (SCU) prototype with a period of 16 mm and a magnetic gap of 8 mm has been under design and fabrication at the Shanghai Institute of Applied Physics in China since late 2013. The SCU prototype is aimed at obtaining the magnetic field of 0.88 T at the beam axis. A set of support systems was designed to support the cold masses, including superconducting coils, a beam chamber, and thermal shields. A set of self-centering cold mass supports are adopted for the superconducting magnet for the purpose of self-alignment at low temperature. The beam chamber is supported by G-10 spacers against the magnet. The nonmetallic tension rods and spacers are used to support the 60- and 20-K thermal shields, respectively. The heat loads conducted to the cold masses through the supports need to be minimized. This paper presents the design details of the support system.

Keywords

rods (structures); superconducting coils; wigglers; China; SCU prototype; SINAP; Shanghai Institute of Applied Physics; beam chamber; cold mass supports design; nonmetallic tension rods; self-centering cold mass supports; superconducting magnet; superconducting undulator prototype; Cooling; Heating; Magnetic noise; Magnetic shielding; Magnetomechanical effects; Prototypes; Superconducting magnets; Self-centering cold mass support; self-centering cold mass support; superconducting undulator; superconducting undulator (SCU); support system;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2014.2386695

Filename

6999954