Design of mechanical structure and cryostat for IASW superconducting wiggler at NSRRC

Author

Chen, H.H. ; Hwang, C.S. ; Chang, C.H. ; Jan, J.C. ; Lin, F.Y. ; Huang, M.H. ; Fan, T.C.

Author_Institution

Nat. Synchrotron Radiation Res. Centre, Hsinchu

fYear

2007

fDate

25-29 June 2007

Firstpage

374

Lastpage

376

Abstract

An in-achromatic superconducting wiggler (IASW) was successfully constructed and installed at the Taiwan Light Source (TLS) in January 2006. The cryostat with a 30 L liquid nitrogen aluminum reservoir shielding surrounds the helium vessel, which comprises the cold mass and 100 L liquid helium. The helium vessel is suspended by eight suspension links, which are thermally intercepted at 80 K and can be adjusted by applying tension, such that the center of the cold mass does not move during cooled to 4.2 K. A three-layered stainless tube was designed to prevent the transfer port from freezing and the steam- electricity separation system is designed to supply electricity and return the helium gas to prevent freezing of the power feedthrough.

Keywords

cryostats; freezing; liquid helium; reservoirs; superconducting magnets; wigglers; Taiwan Light Source; cryostat; freezing; helium gas; helium vessel; in-achromatic superconducting wiggler; liquid helium; liquid nitrogen aluminum reservoir shielding; mechanical structure design; steam-electricity separation system; superconducting magnet; temperature 80 K; three-layered stainless tube; Aluminum; Cryogenics; Filling; Helium; Nitrogen; Poles and towers; Superconducting magnets; Undulators; Vacuum systems; Welding;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2007. PAC. IEEE

Conference_Location

Albuquerque, NM

Print_ISBN

978-1-4244-0916-7

Type

conf

DOI

10.1109/PAC.2007.4440216

Filename

4440216