Abstract
We report recent measurements of the enhancement of electron-stimulated desorption (ESD) of excited CN from KCl, NaCl, NaF, and LiF surfaces due to the exposure of the surfaces to gaseous H 2. The CN ∗ desorption yield varies linearly with the ESD yield of atomic hydrogen. The measured rotational distribution of CN ∗ desorbed from a H 2-dosed LiF surface is different from that for an un-dosed LiF surface. We propose an HCN-mediated process to explain the hydrogen-enhanced CN ∗ desorption.
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