Heat leak performance of SSC collider dipole magnets

Author

Weisend, J.G., II ; Levin, M. ; Franks, D. ; Pletzer, R. ; Augustynowicz, S. ; McInturff, A.D. ; Boroski, W.

Author_Institution

SCC Lab., Dallas, TX, USA

Volume

30

Issue

4

fYear

1994

fDate

7/1/1994 12:00:00 AM

Firstpage

2257

Lastpage

2260

Abstract

The large number of superconducting dipoles in the SSC results in a stringent heat leak budget for each dipole. Ensuring that the dipoles meet this budget is vital to the successful operation of the collider. This work surveys heat leak measurements taken during 4 different magnet string tests. These tests involved both 40 mm and 50 mm aperture dipoles. In these experiments the heat leak to the 80 K shield, 20 K shield and cold mass are measured. The results are compared to predictions from a computational thermal model of the dipole cryostat. Discrepancies are seen between the predicted and measured values. Possible explanations for these discrepancies are given

Keywords

beam handling equipment; cryostats; heat losses; proton accelerators; superconducting magnets; synchrotrons; 20 K; 80 K; SSC collider dipole magnets; cold mass; computational thermal model; dipole cryostat; heat leak performance; magnet string tests; shield; superconducting dipoles; Apertures; Cooling; Erbium; Laboratories; Length measurement; Performance evaluation; Resistors; Superconducting magnets; System testing; Temperature;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.305724

Filename

305724