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Thrower, J. D.; Collings, M. P.; McCoustra, M. R. S.; Burke, D. J.; Brown, W. A.; Dawes, A.; Holtom, P. D.; Kendall, P.; Mason, N. J.; Jamme, F.; Fraser, H. J.; Clark, I. P. and Parker, A. W.
(2008).
DOI: https://doi.org/10.1116/1.2834687
Abstract
The kinetic energy of benzene and water molecules photodesorbed from astrophysically relevant ices on a sapphire substrate under irradiation by a UV laser tuned to the S1←S0 π→π* transition of benzene has been measured using time-of-flight mass spectrometry. Three distinct photodesorption mechanisms have been identified—a direct adsorbate-mediated desorption of benzene, an indirect adsorbate-mediated desorption of water, and a substrate-mediated desorption of both benzene and water. The translational temperature of each desorbing population was well in excess of the ambient temperature of the ice matrix.
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About
- Item ORO ID
- 37288
- Item Type
- Journal Item
- ISSN
- 0734-2101
- Extra Information
- Paper presented at: AVS 54th International Symposium, Seattle, WA, 14-19 October, 2007
- Academic Unit or School
-
Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Faculty of Arts and Social Sciences (FASS) - Research Group
- Physics
- Copyright Holders
- © 2008 American Vacuum Society
- Depositing User
- Helen Fraser