Cross sections for resonant transfer and excitation in Fe sup q + +H sub 2 collisions
Resonant transfer and excitation (RTE) is investigated for Fe{sup {ital q}+} ions ({ital q}=23, 24, and 25) colliding with H{sub 2}. For each charge state, cross sections for RTE were obtained from measurements of {ital K} x rays, emitted from the doubly excited intermediate state, coincident with s...
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| Veröffentlicht in: | Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 1992-06, Vol.45:11 |
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| container_title | Physical review. A, Atomic, molecular, and optical physics |
| container_volume | 45:11 |
| creator | Clark, M.W. Tanis, J.A. Bernstein, E.M. Badnell, N.R. DuBois, R.D. Graham, W.G. Morgan, T.J. Plano, V.L. Schlachter, A.S. Stockli, M.P. |
| description | Resonant transfer and excitation (RTE) is investigated for Fe{sup {ital q}+} ions ({ital q}=23, 24, and 25) colliding with H{sub 2}. For each charge state, cross sections for RTE were obtained from measurements of {ital K} x rays, emitted from the doubly excited intermediate state, coincident with single-electron capture by the incident ion. Additionally, for Fe{sup 25+} cross sections were obtained from measurements of coincidences between the two {ital K} x rays emitted from the intermediate state. These latter measurements provide information on the lifetimes of intermediate metastable states formed in the RTE process. In all cases, measured cross sections are in good agreement with calculations based on theoretical cross sections for dielectronic recombination (DR). Since RTE closely approximates DR, the results indicate that dielectronic-recombination cross sections involving {ital K}-shell excitation can be accurately predicted for highly charged iron ions. The results for Fe{sup 25+} show that metastable states are sufficiently short lived to be observable in the RTE (or DR) process for these hydrogenlike ions. |
| doi_str_mv | 10.1103/PhysRevA.45.7846 |
| format | Article |
| fullrecord | <record><control><sourceid>osti</sourceid><recordid>TN_cdi_osti_scitechconnect_7286227</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>7286227</sourcerecordid><originalsourceid>FETCH-osti_scitechconnect_72862273</originalsourceid><addsrcrecordid>eNqNjj0LwjAYhIMo-Lk7vrhKaxKjbUcRpaOIzhJjipGSaN4o-u9NwR_gLXfDw90RMmY0ZYzOZ7vrB_f6tUrFIs1ysWyRHqOFSNiS83aTFzThhci6pI94o1EiL3rkuPYOEVCrYJxFqJwHr9FZaQMELy1W2oO0F9BvZYJsKDAWthrweYcHTGFaxngGDsrVtcGmZkg6laxRj34-IJPt5rAuE4fBnDAWaXVVzto4e8p4Hj9m87-gL3eGRy4</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Cross sections for resonant transfer and excitation in Fe sup q + +H sub 2 collisions</title><source>American Physical Society Journals</source><creator>Clark, M.W. ; Tanis, J.A. ; Bernstein, E.M. ; Badnell, N.R. ; DuBois, R.D. ; Graham, W.G. ; Morgan, T.J. ; Plano, V.L. ; Schlachter, A.S. ; Stockli, M.P.</creator><creatorcontrib>Clark, M.W. ; Tanis, J.A. ; Bernstein, E.M. ; Badnell, N.R. ; DuBois, R.D. ; Graham, W.G. ; Morgan, T.J. ; Plano, V.L. ; Schlachter, A.S. ; Stockli, M.P.</creatorcontrib><description>Resonant transfer and excitation (RTE) is investigated for Fe{sup {ital q}+} ions ({ital q}=23, 24, and 25) colliding with H{sub 2}. For each charge state, cross sections for RTE were obtained from measurements of {ital K} x rays, emitted from the doubly excited intermediate state, coincident with single-electron capture by the incident ion. Additionally, for Fe{sup 25+} cross sections were obtained from measurements of coincidences between the two {ital K} x rays emitted from the intermediate state. These latter measurements provide information on the lifetimes of intermediate metastable states formed in the RTE process. In all cases, measured cross sections are in good agreement with calculations based on theoretical cross sections for dielectronic recombination (DR). Since RTE closely approximates DR, the results indicate that dielectronic-recombination cross sections involving {ital K}-shell excitation can be accurately predicted for highly charged iron ions. The results for Fe{sup 25+} show that metastable states are sufficiently short lived to be observable in the RTE (or DR) process for these hydrogenlike ions.</description><identifier>ISSN: 1050-2947</identifier><identifier>EISSN: 1094-1622</identifier><identifier>DOI: 10.1103/PhysRevA.45.7846</identifier><language>eng</language><publisher>United States</publisher><subject>664300 - Atomic & Molecular Physics- Collision Phenomena- (1992-) ; ABSORPTION ; ATOMIC AND MOLECULAR PHYSICS ; CHARGE STATES ; CHARGED PARTICLES ; COINCIDENCE METHODS ; COLLISIONS ; COUNTING TECHNIQUES ; CROSS SECTIONS ; DECAY ; ELECTROMAGNETIC RADIATION ; ELEMENTS ; ENERGY TRANSFER ; ENERGY-LEVEL TRANSITIONS ; EXCITATION ; HYDROGEN ; ION COLLISIONS ; ION-MOLECULE COLLISIONS ; IONIZING RADIATIONS ; IONS ; IRON IONS ; MOLECULE COLLISIONS ; MULTICHARGED IONS ; NONMETALS ; PARTICLE DECAY ; RADIATIONS ; RADIATIVE DECAY ; RESONANCE ABSORPTION ; SORPTION ; X RADIATION</subject><ispartof>Physical review. 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A, Atomic, molecular, and optical physics</title><description>Resonant transfer and excitation (RTE) is investigated for Fe{sup {ital q}+} ions ({ital q}=23, 24, and 25) colliding with H{sub 2}. For each charge state, cross sections for RTE were obtained from measurements of {ital K} x rays, emitted from the doubly excited intermediate state, coincident with single-electron capture by the incident ion. Additionally, for Fe{sup 25+} cross sections were obtained from measurements of coincidences between the two {ital K} x rays emitted from the intermediate state. These latter measurements provide information on the lifetimes of intermediate metastable states formed in the RTE process. In all cases, measured cross sections are in good agreement with calculations based on theoretical cross sections for dielectronic recombination (DR). Since RTE closely approximates DR, the results indicate that dielectronic-recombination cross sections involving {ital K}-shell excitation can be accurately predicted for highly charged iron ions. The results for Fe{sup 25+} show that metastable states are sufficiently short lived to be observable in the RTE (or DR) process for these hydrogenlike ions.</description><subject>664300 - Atomic & Molecular Physics- Collision Phenomena- (1992-)</subject><subject>ABSORPTION</subject><subject>ATOMIC AND MOLECULAR PHYSICS</subject><subject>CHARGE STATES</subject><subject>CHARGED PARTICLES</subject><subject>COINCIDENCE METHODS</subject><subject>COLLISIONS</subject><subject>COUNTING TECHNIQUES</subject><subject>CROSS SECTIONS</subject><subject>DECAY</subject><subject>ELECTROMAGNETIC RADIATION</subject><subject>ELEMENTS</subject><subject>ENERGY TRANSFER</subject><subject>ENERGY-LEVEL TRANSITIONS</subject><subject>EXCITATION</subject><subject>HYDROGEN</subject><subject>ION COLLISIONS</subject><subject>ION-MOLECULE COLLISIONS</subject><subject>IONIZING RADIATIONS</subject><subject>IONS</subject><subject>IRON IONS</subject><subject>MOLECULE COLLISIONS</subject><subject>MULTICHARGED IONS</subject><subject>NONMETALS</subject><subject>PARTICLE DECAY</subject><subject>RADIATIONS</subject><subject>RADIATIVE DECAY</subject><subject>RESONANCE ABSORPTION</subject><subject>SORPTION</subject><subject>X RADIATION</subject><issn>1050-2947</issn><issn>1094-1622</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1992</creationdate><recordtype>article</recordtype><recordid>eNqNjj0LwjAYhIMo-Lk7vrhKaxKjbUcRpaOIzhJjipGSaN4o-u9NwR_gLXfDw90RMmY0ZYzOZ7vrB_f6tUrFIs1ysWyRHqOFSNiS83aTFzThhci6pI94o1EiL3rkuPYOEVCrYJxFqJwHr9FZaQMELy1W2oO0F9BvZYJsKDAWthrweYcHTGFaxngGDsrVtcGmZkg6laxRj34-IJPt5rAuE4fBnDAWaXVVzto4e8p4Hj9m87-gL3eGRy4</recordid><startdate>19920601</startdate><enddate>19920601</enddate><creator>Clark, M.W.</creator><creator>Tanis, J.A.</creator><creator>Bernstein, E.M.</creator><creator>Badnell, N.R.</creator><creator>DuBois, R.D.</creator><creator>Graham, W.G.</creator><creator>Morgan, T.J.</creator><creator>Plano, V.L.</creator><creator>Schlachter, A.S.</creator><creator>Stockli, M.P.</creator><scope>OTOTI</scope></search><sort><creationdate>19920601</creationdate><title>Cross sections for resonant transfer and excitation in Fe sup q + +H sub 2 collisions</title><author>Clark, M.W. ; Tanis, J.A. ; Bernstein, E.M. ; Badnell, N.R. ; DuBois, R.D. ; Graham, W.G. ; Morgan, T.J. ; Plano, V.L. ; Schlachter, A.S. ; Stockli, M.P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-osti_scitechconnect_72862273</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1992</creationdate><topic>664300 - Atomic & Molecular Physics- Collision Phenomena- (1992-)</topic><topic>ABSORPTION</topic><topic>ATOMIC AND MOLECULAR PHYSICS</topic><topic>CHARGE STATES</topic><topic>CHARGED PARTICLES</topic><topic>COINCIDENCE METHODS</topic><topic>COLLISIONS</topic><topic>COUNTING TECHNIQUES</topic><topic>CROSS SECTIONS</topic><topic>DECAY</topic><topic>ELECTROMAGNETIC RADIATION</topic><topic>ELEMENTS</topic><topic>ENERGY TRANSFER</topic><topic>ENERGY-LEVEL TRANSITIONS</topic><topic>EXCITATION</topic><topic>HYDROGEN</topic><topic>ION COLLISIONS</topic><topic>ION-MOLECULE COLLISIONS</topic><topic>IONIZING RADIATIONS</topic><topic>IONS</topic><topic>IRON IONS</topic><topic>MOLECULE COLLISIONS</topic><topic>MULTICHARGED IONS</topic><topic>NONMETALS</topic><topic>PARTICLE DECAY</topic><topic>RADIATIONS</topic><topic>RADIATIVE DECAY</topic><topic>RESONANCE ABSORPTION</topic><topic>SORPTION</topic><topic>X RADIATION</topic><toplevel>online_resources</toplevel><creatorcontrib>Clark, M.W.</creatorcontrib><creatorcontrib>Tanis, J.A.</creatorcontrib><creatorcontrib>Bernstein, E.M.</creatorcontrib><creatorcontrib>Badnell, N.R.</creatorcontrib><creatorcontrib>DuBois, R.D.</creatorcontrib><creatorcontrib>Graham, W.G.</creatorcontrib><creatorcontrib>Morgan, T.J.</creatorcontrib><creatorcontrib>Plano, V.L.</creatorcontrib><creatorcontrib>Schlachter, A.S.</creatorcontrib><creatorcontrib>Stockli, M.P.</creatorcontrib><collection>OSTI.GOV</collection><jtitle>Physical review. A, Atomic, molecular, and optical physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Clark, M.W.</au><au>Tanis, J.A.</au><au>Bernstein, E.M.</au><au>Badnell, N.R.</au><au>DuBois, R.D.</au><au>Graham, W.G.</au><au>Morgan, T.J.</au><au>Plano, V.L.</au><au>Schlachter, A.S.</au><au>Stockli, M.P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Cross sections for resonant transfer and excitation in Fe sup q + +H sub 2 collisions</atitle><jtitle>Physical review. A, Atomic, molecular, and optical physics</jtitle><date>1992-06-01</date><risdate>1992</risdate><volume>45:11</volume><issn>1050-2947</issn><eissn>1094-1622</eissn><abstract>Resonant transfer and excitation (RTE) is investigated for Fe{sup {ital q}+} ions ({ital q}=23, 24, and 25) colliding with H{sub 2}. For each charge state, cross sections for RTE were obtained from measurements of {ital K} x rays, emitted from the doubly excited intermediate state, coincident with single-electron capture by the incident ion. Additionally, for Fe{sup 25+} cross sections were obtained from measurements of coincidences between the two {ital K} x rays emitted from the intermediate state. These latter measurements provide information on the lifetimes of intermediate metastable states formed in the RTE process. In all cases, measured cross sections are in good agreement with calculations based on theoretical cross sections for dielectronic recombination (DR). Since RTE closely approximates DR, the results indicate that dielectronic-recombination cross sections involving {ital K}-shell excitation can be accurately predicted for highly charged iron ions. The results for Fe{sup 25+} show that metastable states are sufficiently short lived to be observable in the RTE (or DR) process for these hydrogenlike ions.</abstract><cop>United States</cop><doi>10.1103/PhysRevA.45.7846</doi></addata></record> |
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| identifier | ISSN: 1050-2947 |
| ispartof | Physical review. A, Atomic, molecular, and optical physics, 1992-06, Vol.45:11 |
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| language | eng |
| recordid | cdi_osti_scitechconnect_7286227 |
| source | American Physical Society Journals |
| subjects | 664300 - Atomic & Molecular Physics- Collision Phenomena- (1992-) ABSORPTION ATOMIC AND MOLECULAR PHYSICS CHARGE STATES CHARGED PARTICLES COINCIDENCE METHODS COLLISIONS COUNTING TECHNIQUES CROSS SECTIONS DECAY ELECTROMAGNETIC RADIATION ELEMENTS ENERGY TRANSFER ENERGY-LEVEL TRANSITIONS EXCITATION HYDROGEN ION COLLISIONS ION-MOLECULE COLLISIONS IONIZING RADIATIONS IONS IRON IONS MOLECULE COLLISIONS MULTICHARGED IONS NONMETALS PARTICLE DECAY RADIATIONS RADIATIVE DECAY RESONANCE ABSORPTION SORPTION X RADIATION |
| title | Cross sections for resonant transfer and excitation in Fe sup q + +H sub 2 collisions |
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