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NASA Goddard Cryogenics Group

A 10 K magnet for space-flight ADRs

James Tuttle (a), Shahin Pourrahimi (b), Peter Shirron (a), Edgar Canavan (a), Michael DiPirro (a) and Sara Riall (a)

(a) Cryogenics and Fluids Branch
Code 552
NASA/ Goddard Space Flight Center
Greenbelt, MD 20771

(b) Superconducting Systems, Inc.
90 Rumford Avenue
Waltham, MA 02453-3847, USA

ABSTRACT: Future NASA missions will include detectors cooled by adiabatic demagnetization refrigerators (ADRs) coupled with mechanical cryocoolers. A lightweight, low-current 10 K magnet would allow the interface between these devices to be at temperatures as high as 10 K, adding flexibility to the instrument design. We report on the testing of a standard-technology Nb3Sn magnet and the development of a lightweight, low-current 10 K magnet. We also discuss the outlook for flying a 10 K magnet as part of an ADR system.

Pages 383-388
Cryogenics, Volume 44, Issues 6-8 (June - August 2004)
[2003 Space Cryogenics Workshop, Edited by M. Larson and W. A. Holmes]