NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Cryogenics - Its influence on the selection of the ASTROMAG superconducting magnet coilsASTROMAG, a particle astrophysics experimental facility proposed for running alongside a Space Station, has a large superconducting magnet to analyze particles coming from deep space. Several types of magnets were investigated for use in the ASTROMAG central facility. The factors which influence the selection of the magnet coil design include: (1) the upper limit of particle momentum resolved (proportional to the integrated field) as a function of solid angle; (2)cryogenic design and its effect on cryogen lifetime for a given central facility mass; and (3) the overall cost of the magnet coils and cryostat. Four magnet types are analyzed in this paper. These include a simple two-coil solenoid (the baseline design),two disk coils at the ends of the helium tank, a two-coil toroid and a thin solenoid plus bucking coil. A balance must be struck between cryostat lifetime, total mass and the integrated field through the detectors. This balance tends to favor coils which are in the same vacuum vessel as the cryogen.
Document ID
19900048549
Document Type
Reprint (Version printed in journal)
Authors
Green, M. A. (California, University Berkeley, United States)
Date Acquired
August 14, 2013
Publication Date
March 1, 1990
Publication Information
Publication: Cryogenics
Volume: 30
ISSN: 0011-2275
Subject Category
ENGINEERING (GENERAL)
Funding Number(s)
CONTRACT_GRANT: DE-AC03-76SF-00098
Distribution Limits
Public
Copyright
Other