Publication Type |
Journal Article |
School or College |
College of Science |
Department |
Physics |
Creator |
Saam, Brian |
Other Author |
Jacob, R. E.; Morgan, S. W.; Leawoods, J. C. |
Title |
Wall relaxation of 3He in spin-exchange cells |
Date |
2001-09 |
Description |
The 3He longitudinal spin-relaxation rate T1-1 is crucial for production of highly polarized 3He by spin-exchange optical pumping. We show that T1-1 is increased by a factor of 2-20 solely by exposure of spin-exchange cells to a few-kG magnetic field. The original T1-1 can be restored by degaussing the cell. The effect is attributed to magnetic surface sites and has been observed in both Pyrex and aluminosilicate-glass cells. Our results both advance the understanding of wall relaxation and demonstrate the use of 3He as an extremely sensitive probe of surface magnetism. |
Type |
Text |
Publisher |
American Physical Society |
Journal Title |
Physical Review Letters |
Volume |
87 |
Issue |
14 |
DOI |
10.1103/PhysRevLett.87.143004 |
citatation_issn |
0031-9007 |
Subject |
Wall relaxation; Spin-exchange cells; 3He; Longitudinal spin-relaxation; Spin-exchange optical pumping; SEOP; Hyperpolarized 3He; Surface magnetism; Glass cells |
Subject LCSH |
Relaxation (Nuclear physics); Helium; Polarization (Nuclear physics) |
Language |
eng |
Bibliographic Citation |
Jacob, R. E., Morgan, S. W., Saam, B., & Leawoods, J. C. (2001). Wall relaxation of 3He in spin-exchange cells. Physical Review Letters, 87(14), 143004. |
Rights Management |
(c) American Physical Society http://dx.doi.org/10.1103/PhysRevLett.87.143004 |
Format Medium |
application/pdf |
Format Extent |
86,199 bytes |
Identifier |
ir-main,10862 |
ARK |
ark:/87278/s65q5d96 |
Setname |
ir_uspace |
ID |
703769 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s65q5d96 |