Type of Work
Article
Date
5-1-2005
Journal Title
Review of Scientific Instruments
Journal ISSN
0034-6748
Journal Volume
76
Journal Issue
5
First Page
053503
DOI
10.1063/1.1898163
Abstract
Dense samples (10-100 bar cm) of nuclear spin polarized He-3 are utilized in high energy physics, neutron scattering, atomic physics, and magnetic resonance imaging. Metastability exchange optical pumping can rapidly produce high He-3 polarizations (≈ 80%) at low pressures (few mbar). We describe a polarized He-3 gas compressor system which accepts 0.26 bar l h(-1) of He-3 gas polarized to 70% by a 4 W neodymium doped lanthanum magnesium hexaluminate (Nd:LMA) laser and compresses it into a 5 bar cm target with final polarization of 55%. The spin relaxation rates of the system's components have been measured using nuclear magnetic resonance and a model of the He-3 polarization loss based on the measured relaxation rates and the gas flow is in agreement with a He-3 polarization measurement using neutron transmission. © 2005 American Institute of Physics.
Citation Information
Hussey, D. S.; Rich, D. R.; Belov, A. S.; Tong, X.; Yang, H.; Bailey, C.; Keith, C. D.; Hartfield, J.; Hall, G. D. R.; Black, T. C.; Snow, W. M.; Gentile, T. R.; Chen, W. C.; Jones, Gordon L.; and Wildman, Eileen '01, "Polarized He-3 gas compression system using metastability-exchange optical pumping" (2005). Hamilton Digital Commons.
https://digitalcommons.hamilton.edu/articles/36
Hamilton Areas of Study
Physics
Notes
This document is the publisher's version of an article published in:
Review of Scientific Instruments, vol. 76, no. 5 (2005): 053503. doi: 10.1063/1.1898163.
This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing.