Cryostat design and magnetostatic analysis of the 6 GeV superconducting dipole for the CEBAF high momentum spectrometer

Author

Miller, J.A. ; Brindza, P.D. ; Fowler, M.J. ; Hunter, W.T. ; Lassiter, S.R. ; Thorpe, R.R.

Author_Institution

Continuous Electron Beam Accel. Facility, Newport News, VA, USA

Volume

27

Issue

2

fYear

1991

fDate

3/1/1991 12:00:00 AM

Firstpage

2292

Lastpage

2295

Abstract

The dipole for the Hall C High Momentum Spectrometer is a 470-ton, superconducting, cryostable magnet. With a bend radius of 12.05625 m and an effective length of 5.26 m, it is configured to achieve a 25° bending angle for 6-GeV/c momentum particles over its 42-cm gap at a central field excitation of 1.66 T. The thermal syphon cooled coil consists of three double pancakes of 3-kA copper-stabilized conductor. The cryostat consists of this cryostable coil wound directly onto a stainless steel bobbin with G-10 support cylinders connected to the bobbin to transfer loads produced during energization to the yoke iron, and a stainless steel heat transfer panel cooled by LN₂ and a stainless steel vacuum vessel. The coil assembly is suspended within the vacuum vessel by eight tensioning support links

Keywords

cryostats; magnetostatics; particle spectrometers; superconducting magnets; 1.66 T; 6 GeV; CEBAF high momentum spectrometer; bend radius; central field excitation; cryostable magnet; cryostat; double pancakes; energization; heat transfer panel; magnetostatic analysis; stainless steel bobbin; superconducting dipole; thermal syphon cooled coil; Conductors; Iron; Magnetic analysis; Magnetostatics; Spectroscopy; Steel; Superconducting coils; Superconducting magnets; Thermal conductivity; Wounds;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.133675

Filename

133675