Physics
Scientific paper
Oct 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aps..dnp..b708r&link_type=abstract
Geophysical Research Letters, v. 24, No. 17, p. 2123 (1997).
Physics
2756 Magnetospheric Physics, Planetary Magnetospheres (5443, 5737, 6030), 5421 Planetology: Solid Surface Planets, Interactions With Particles And Fields, 5719 Planetology: Fluid Planets, Interactions With Particles And Fields
Scientific paper
Many proposed or anticipated experiments with low energy neutrons require the unique advantages of a polarized ^3He neutron spin filter. There are two techniques (Chupp et.al., Annual Rev. Nucl. Part. Sci. 45, 373-411 (1994)) for achieving high density, high polarization ^3He for this purpose: 1. spin exchange with optically polarized Rb, and 2. metastability exchange with optically pumped metastable ^3He. In the latter method, ^3He is polarized at low pressures ( ~1-2 torr), and must be compressed to a few atm (Heil et.al., Physica B 241-243, 56-63 (1998)). To this end, a non-magnetic, polarization preserving compression system has been designed and constructed through a joint effort at IUCF and NIST. The current status of the effort is discussed.
Fei Xie
Gentile Thomas R.
Hansen G. L.
Jones Galin L.
Keith C. D.
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