CDW-EIS Calculations for Recoil Ion Emission in Proton-Helium Collisions
Single ionization of helium atoms in collision with high energy protons is treated theoretically in the continuum distorted-wave eikonal initial-state (CDW-EIS) approximation. The total (ER) and transverse (ER⊥) average He+ recoil-ion-energies are calculated as functions of the laboratory proton sca...
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| Veröffentlicht in: | Proceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences 1996-01, Vol.452 (1944), p.175-184 |
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| container_issue | 1944 |
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| container_title | Proceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences |
| container_volume | 452 |
| creator | O'Rourke, S. F. C. Shimamura, I. Crothers, Derrick Samuel Frederick |
| description | Single ionization of helium atoms in collision with high energy protons is treated theoretically in the continuum distorted-wave eikonal initial-state (CDW-EIS) approximation. The total (ER) and transverse (ER⊥) average He+ recoil-ion-energies are calculated as functions of the laboratory proton scattering angle θ ≤ 2 mrad. Measurements (Dörner et al. 1989, Phys. Rev. Lett. 63, 147-150) of these average energies made for helium gas in equilibrium at 30 K are reasonably well reproduced to within a factor of two, by the CDW-EIS approximation. The CDW-EIS recoil-ion energy distributions are convoluted over a Maxwellian-Boltzmann distribution, to allow for the 30 K thermal motion of the target helium atoms in the experiment. |
| doi_str_mv | 10.1098/rspa.1996.0010 |
| format | Article |
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The CDW-EIS recoil-ion energy distributions are convoluted over a Maxwellian-Boltzmann distribution, to allow for the 30 K thermal motion of the target helium atoms in the experiment.</description><identifier>ISSN: 1364-5021</identifier><identifier>EISSN: 1471-2946</identifier><identifier>EISSN: 2053-9177</identifier><identifier>DOI: 10.1098/rspa.1996.0010</identifier><language>eng</language><publisher>London: The Royal Society</publisher><subject>Approximation ; Atoms ; Electrons ; Helium ; Ion emission ; Ions ; Kinetics ; Momentum ; Proton scattering ; Protons</subject><ispartof>Proceedings of the Royal Society of London. 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The CDW-EIS recoil-ion energy distributions are convoluted over a Maxwellian-Boltzmann distribution, to allow for the 30 K thermal motion of the target helium atoms in the experiment.</description><subject>Approximation</subject><subject>Atoms</subject><subject>Electrons</subject><subject>Helium</subject><subject>Ion emission</subject><subject>Ions</subject><subject>Kinetics</subject><subject>Momentum</subject><subject>Proton scattering</subject><subject>Protons</subject><issn>1364-5021</issn><issn>1471-2946</issn><issn>2053-9177</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1996</creationdate><recordtype>article</recordtype><recordid>eNp9UE1v1DAUjBBIlMKVA6f8gSz-dnxCJSzdlSpRdQscLa_Xpl68cWQnwPLr6yRVpRWiJ_tpZt7Mm6J4C8ECAlG_j6lTCygEWwAAwbPiDBIOKyQIe57_mJGKAgRfFq9S2gMABK35WbFqPn2vlutN2SivB696F9pU2hDLG6OD8-U6tOXy4FLKQOna8jqGPrTVyng3HMomeO9GKL0uXljlk3nz8J4XXz8vb5tVdfXlct1cXFWaEtJXdiuEYkQzjazBGCLEgdpqLnDNrBWab4E1O8C1wLuttUYRoTUylGNo1Q4bfF4s5r06hpSisbKL7qDiUUIgxx7k2IMce5BjD1mAZ0EMxxwsaGf6o9yHIbZ5_L8qPaW62VxfjORfhCIHBSES1BgCijim8q_rpnXTtkyQub3ByIl2avOv67vZdZ_6EB8vo0hAmMFqBl3qzZ9HUMWfknHMqfxWE0nY5cdbtGGSZj6c-Xfux91vF408uSUPXUxqCjhFg3zUfHhSM8bVoe1N258IpR28l93O4nuEschd</recordid><startdate>19960108</startdate><enddate>19960108</enddate><creator>O'Rourke, S. 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A</addtitle><date>1996-01-08</date><risdate>1996</risdate><volume>452</volume><issue>1944</issue><spage>175</spage><epage>184</epage><pages>175-184</pages><issn>1364-5021</issn><eissn>1471-2946</eissn><eissn>2053-9177</eissn><abstract>Single ionization of helium atoms in collision with high energy protons is treated theoretically in the continuum distorted-wave eikonal initial-state (CDW-EIS) approximation. The total (ER) and transverse (ER⊥) average He+ recoil-ion-energies are calculated as functions of the laboratory proton scattering angle θ ≤ 2 mrad. Measurements (Dörner et al. 1989, Phys. Rev. Lett. 63, 147-150) of these average energies made for helium gas in equilibrium at 30 K are reasonably well reproduced to within a factor of two, by the CDW-EIS approximation. 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| ispartof | Proceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences, 1996-01, Vol.452 (1944), p.175-184 |
| issn | 1364-5021 1471-2946 2053-9177 |
| language | eng |
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| source | Jstor Complete Legacy; Alma/SFX Local Collection; JSTOR Mathematics & Statistics |
| subjects | Approximation Atoms Electrons Helium Ion emission Ions Kinetics Momentum Proton scattering Protons |
| title | CDW-EIS Calculations for Recoil Ion Emission in Proton-Helium Collisions |
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