Achievement of transportable polarized D, in solid HD, with a one day passively maintained polarization
- Physics Dept., Syracuse University, Syracuse, New York 13244 (United States)
At a previous workshop, we discussed evaporating solid HD with spin-polarized deuterons to produce a high density polarized deuteron gaseous internal target. Since then, we have achieved in solid HD 38% polarized D, whose spin-lattice relaxation time at 1.5 K in a field of 0.1 T is of the order of a day. Optimization of the procedure with the present apparatus should result in 60% D polarization, and longer polarization holding times. The polarized sample of approximately 0.2 cm[sup 3] volume used here is extractable from the dilution refrigerator with a cold-transfer apparatus which maintains the sample at or below 5 K, insuring retention of the high polarization. It is subsequently insertable into a variety of systems, and employable as a polarized solid, liquid, or gas. We are exploring the possibility of extending the polarization maintenance time to about a month (with a matched 1 month preparation time), of polarizing metastably H as well as D, and of producing much larger samples, of the order of 100 cm[sup 3].
- DOE Contract Number:
- FG03-92SF19201
- OSTI ID:
- 5095224
- Report Number(s):
- CONF-930544--
- Journal Information:
- AIP Conference Proceedings (American Institute of Physics); (United States), Journal Name: AIP Conference Proceedings (American Institute of Physics); (United States) Vol. 293:1; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DEUTERIUM TARGET
FABRICATION
MAGNETIC FIELDS
OPTIMIZATION
POLARIZATION
POLARIZED TARGETS
RELAXATION
SPIN-LATTICE RELAXATION
TARGETS
TEMPERATURE RANGE
TEMPERATURE RANGE 0000-0013 K
Ta
Targets-- (1992-)