Gaseous [sup 3]He-[sup 3]He magnetic dipolar spin relaxation

Journal Article · Wed Dec 01 00:00:00 EST 1993 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.48.4411· OSTI ID:5798322

Newbury, N R; Barton, A S; Cates, G D; Happer, W; Middleton, H ^[1]

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1. Department of Physics, Princeton University, Princeton, New Jersey 08544 (United States)

We derive the nuclear-spin relaxation rate of gaseous [sup 3]He due to the magnetic-dipole interaction between the [sup 3]He nuclear spins. This dipolar relaxation rate is numerically evaluated for temperatures from 0.1 K to 550 K. At room temperature, the relaxation time for a [sup 3]He density of 10 amagats is 74.4 h. We have made a series of high-density (4--12 amagat) [sup 3]He samples for which nulcear relaxation is limited by the magnetic-dipole interaction. Both our theoretical and experimental results are particularly important for the growing use of [sup 3]He, polarized through spin exchange with optically pumped Rb vapor.

• OSTI ID: 5798322
• Journal Information: Physical Review A; (United States), Vol. 48:6; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
HELIUM 3
SPIN-SPIN RELAXATION
DIPOLE MOMENTS
GASES
NUMERICAL SOLUTION
OPTICAL PUMPING
RUBIDIUM
TEMPERATURE RANGE 0000-0013 K
TEMPERATURE RANGE 0013-0065 K
TEMPERATURE RANGE 0065-0273 K
TEMPERATURE RANGE 0273-0400 K
ALKALI METALS
ELEMENTS
EVEN-ODD NUCLEI
FLUIDS
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
METALS
NUCLEI
PUMPING
RELAXATION
STABLE ISOTOPES
TEMPERATURE RANGE
664300* - Atomic & Molecular Physics- Collision Phenomena- (1992-)