Abstract
Data are presented on the wall-induced nuclear spin-relaxation rate of ${}^{129}$Xe in glass cells in which the interior walls are coated with either rubidium hydride (RbH) or rubidium deuteride (RbD). The relaxation rates have been measured as a function of both magnetic field $(0.08lBl1.0\phantom{\rule{0.28em}{0ex}}\text{T})$ and temperature $(205lTl323\phantom{\rule{0.28em}{0ex}}\text{K})$. Spin relaxation was observed to decrease significantly with increasing magnetic field in both RbH- and RbD-coated cells at all temperatures studied. At temperatures above roughly 250 K, there is strong evidence that relaxation is due to long-range dipolar interactions with paramagnetic sites.
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