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Title: Pressure dependence of wall relaxation in polarized {sup 3}He gaseous cells

Journal Article · · Physical Review. A
; ; ;  [1]
  1. Triangle Universities Nuclear Laboratory and Department of Physics, Duke University, Durham, North Carolina 27708 (United States)

We have observed a linear pressure dependence of longitudinal relaxation time T{sub 1} at 4.2 and 295 K in gaseous {sup 3}He cells made of either bare Pyrex glass or Cs- or Rb-coated Pyrex due to paramagnetic sites in the cell wall. The paramagnetic wall relaxation is previously thought to be independent of {sup 3}He pressure. We develop a model to interpret the observed wall relaxation by taking into account the diffusion process, and our model gives a good description of the data.

OSTI ID:
21550015
Journal Information:
Physical Review. A, Vol. 83, Issue 6; Other Information: DOI: 10.1103/PhysRevA.83.061401; (c) 2011 American Institute of Physics; ISSN 1050-2947
Country of Publication:
United States
Language:
English