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Legge, H. und Manson, J.R. und Toennies, J.P. (1999) Energy and momentum transfer of He atoms scattered from a lithium fluoride crystal surface. Journal of Chemical Physics, 110 (17), Seiten 8767-8785.
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Kurzfassung
Both of energy transfer and the normal and tangential force coefficents for scattering of a nearly monoenergetic beam of He atoms (incident energy Ei=63meV) from a clean single crystal LiF(001) surface have been measured unterwind tunnel conditions in the range of surface temperatures from 300 to 720K. Expressions are derived for the differential reflection coefficient for a realistic He-LiF(001) potential with the inclusion of multiphonon processes, and these expressions are used to calculate the average energy and momentum transfers as well as their higher moments. The comparisons between theory and experiment indicate the presence of a moderate degree of surface roughness. The measured recovery temperature depends on incident beam angle and is significantly larger than expected for complete or partial accommodation, in good agreement with the theoretical calculations
| elib-URL des Eintrags: | https://elib.dlr.de/13497/ | ||||||||||||||||
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| Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||
| Zusätzliche Informationen: | LIDO-Berichtsjahr=1999, | ||||||||||||||||
| Titel: | Energy and momentum transfer of He atoms scattered from a lithium fluoride crystal surface | ||||||||||||||||
| Autoren: |
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| Datum: | 1999 | ||||||||||||||||
| Erschienen in: | Journal of Chemical Physics | ||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||
| Open Access: | Nein | ||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||
| In ISI Web of Science: | Ja | ||||||||||||||||
| Band: | 110 | ||||||||||||||||
| Seitenbereich: | Seiten 8767-8785 | ||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||
| Stichwörter: | gas surface interaction, multiphoton processes, rarefied flow, force coefficients, heat transfer coefficient | ||||||||||||||||
| HGF - Forschungsbereich: | Verkehr und Weltraum (alt) | ||||||||||||||||
| HGF - Programm: | Weltraum (alt) | ||||||||||||||||
| HGF - Programmthema: | W RP - Raumtransport | ||||||||||||||||
| DLR - Schwerpunkt: | Weltraum | ||||||||||||||||
| DLR - Forschungsgebiet: | W RP - Raumtransport | ||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | NICHT SPEZIFIZIERT | ||||||||||||||||
| Standort: | Köln-Porz , Braunschweig , Göttingen | ||||||||||||||||
| Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Institut für Strömungsmechanik | ||||||||||||||||
| Hinterlegt von: | DLR-Beauftragter, elib | ||||||||||||||||
| Hinterlegt am: | 16 Sep 2005 | ||||||||||||||||
| Letzte Änderung: | 14 Jan 2010 20:32 |
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