Physics
Scientific paper
Jul 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003icrc....4.2153b&link_type=abstract
Proceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the I
Physics
Scientific paper
The Alpha Magnetic spectrometer AMS-02 is a particle physics detector designed to search for anti-matter, dark matter and the origin of cosmic rays in space. The detector will be installed on the International Space Station in 2005. A key feature of the detector is a strong superconducting magnet with a bending power Bl2 of approx. 0.8Tm2 . The magnet consists of a pair of dip ole coils and two sets of six racetrack coils. This special arrangement was chosen to suppress the stray field and the magnetic moment of the magnet. The magnet is operated at a temperature of 1.8 K by means of 2500 l of superfluid helium. Since the magnet design is optimized with respect to very low heat losses, the magnet is intended to be operated for 3 years without refilling. The AMS-02 magnet will be the first large superconducting magnet used in space. This paper describes its main features including the principle concept of the cryogenic system. The development of special cryogenic equipment required for operation of a large superconducting magnet under microgravity conditions is also presented.
Blau B.
Harrison Stephen M.
Hofer Hans
Kaiser Gunter
Milward Steve R.
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