Self-calibrating measurement of polarization-dependent frequency shifts from Rb-[sup 3]He collisions

Journal Article · Fri Apr 01 04:00:00 EST 1994 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.49.2766· OSTI ID:5091670

Barton, A S; Newbury, N R; Cates, G D; Driehuys, B; Middleton, H; Saam, B ^[1]

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

We have studied the frequency shift in the Rb electron-paramagnetic-resonance (EPR) line due to the presence of nuclear polarized [sup 3]He. By measuring the resonant frequency in a cylindrical cell oriented both parallel and perpendicular to an applied magnetic field, we determined the classical EPR shift due to long-range macroscopic fields. We thus calibrated the larger, geometry-independent shift, due to the Fermi-contact interaction between the Rb electron and the [sup 3]He nucleus, to 2.5%. The EPR frequency shift can be used to determine the [sup 3]He nuclear polarization.

• OSTI ID: 5091670
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 49:4; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METALS
ATOM COLLISIONS
ATOM-ATOM COLLISIONS
CALIBRATION
CLASSICAL MECHANICS
COLLISIONS
ELECTRON SPIN RESONANCE
ELEMENTS
EVEN-ODD NUCLEI
HELIUM 3
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
MAGNETIC RESONANCE
MECHANICS
METALS
NUCLEI
POLARIZED TARGETS
RESONANCE
RUBIDIUM
SPECTRAL SHIFT
SPIN EXCHANGE
STABLE ISOTOPES
TARGETS