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Surface science investigations of photoprocesses in model interstellar ices

Thrower, J.D. and Collings, M.P. and McCoustra, M.R.S. and Burke, D.J. and Brown, W.A. and Dawes, A. and Holtom, P.D. and Fraser, H.J. (2008) Surface science investigations of photoprocesses in model interstellar ices. Journal of Vacuum Science and Technology A, 26 (4). pp. 919-924. ISSN 0734-2101

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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 →* 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

Item type: Article
ID code: 19555
Notes: Strathprints' policy is to record up to 8 authors per publication, plus any additional authors based at the University of Strathclyde. More authors may be listed on the official publication than appear in the Strathprints' record.
Keywords: model interstellar ices, astrophysics, Physics, Surfaces, Coatings and Films, Surfaces and Interfaces, Condensed Matter Physics
Subjects: Science > Physics
Department: Faculty of Science > Physics
Depositing user: Strathprints Administrator
Date Deposited: 27 May 2010 16:59
Last modified: 21 May 2015 11:49

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