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Electron-Ion Recombination in Atmospheric and Laboratory Plasmas
Stockholm University, Faculty of Science, Department of Physics.
2006 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

In this thesis, the measurements performed at CRYRING, Stockholm University, on the dissociative recombination of C2H+, C2H4+, C2D5+, C3H7+, C3D7+, C4D9+, Na+(D2O), CF+, CF2+ and CO2+ are presented. The dissociative recombination is the reaction in which a positive molecular ion captures an electron and stabilizes the capture by dissociation into neutral fragments. This reaction is of importance in many plasma environments, both naturally occurring, such as planetary atmospheres and interstellar clouds, and man-made, such as plasma enhanced reactors.

The results from this study show that the hydrocarbon ions have a large probability for breaking several hydrogen bonds as well as a carbon-carbon bond. In the DR reaction of Na+(D2O), the fracture of the cluster bond is by far the dominating pathway, and the single F detachment is shown to be the main dissociation channel for the fluorocarbon ions. The carbon dioxide cation, CO2+, dissociates exclusively into CO and O, which makes a difference in atmospheric models. The DR rate coefficient is also presented for the different ions. Besides a discussion of the results, this thesis also includes a presentation of the experimental technique and analyzing procedure.

Place, publisher, year, edition, pages
Stockholm: Fysikum , 2006. , 93 p.
Identifiers
URN: urn:nbn:se:su:diva-1027ISBN: 91-7115-248-0 OAI: oai:DiVA.org:su-1027DiVA: diva2:189245
Public defence
2006-06-02, sal FA32, AlbaNova universitetscentrum, Roslagstullsbacken 21, Stockholm, 10:00
Opponent
Supervisors
Available from: 2006-05-05 Created: 2006-05-05Bibliographically approved
List of papers
1. Dissociative Recombination of C2H+ and C2H4+: Absolute cross sections and product branching ratios
Open this publication in new window or tab >>Dissociative Recombination of C2H+ and C2H4+: Absolute cross sections and product branching ratios
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2004 In: Physical chemistry chemical physics, ISSN 1463-9076, no 6, 949-954 p.Article in journal (Refereed) Published
Identifiers
urn:nbn:se:su:diva-22664 (URN)
Note
Part of urn:nbn:se:su:diva-1027Available from: 2006-05-05 Created: 2006-05-05Bibliographically approved
2. First observation of four-body breakup in electron recombination: C2D5+
Open this publication in new window or tab >>First observation of four-body breakup in electron recombination: C2D5+
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2004 In: Physical Review Letters, ISSN 0031-9007, Vol. 93, 153201- p.Article in journal (Refereed) Published
Identifiers
urn:nbn:se:su:diva-22665 (URN)
Note
Part of urn:nbn:se:su:diva-1027Available from: 2006-05-05 Created: 2006-05-05Bibliographically approved
3. Rates and Products of the Dissociative Recombination of C3H7+ in Low-Energy Electron Collisions
Open this publication in new window or tab >>Rates and Products of the Dissociative Recombination of C3H7+ in Low-Energy Electron Collisions
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2003 In: The Journal Of Physical Chemistry A, ISSN 1089-5639, Vol. 107, 2179-2184 p.Article in journal (Refereed) Published
Identifiers
urn:nbn:se:su:diva-22666 (URN)
Note
Part of urn:nbn:se:su:diva-1027Available from: 2006-05-05 Created: 2006-05-05Bibliographically approved
4. Rate constants and branching ratios for the dissociative recombination of C3D7+ and C4D9+
Open this publication in new window or tab >>Rate constants and branching ratios for the dissociative recombination of C3D7+ and C4D9+
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2005 In: The journal of chemical physics, ISSN 0021-9606, Vol. 122, 156101- p.Article in journal (Refereed) Published
Identifiers
urn:nbn:se:su:diva-22667 (URN)
Note
Part of urn:nbn:se:su:diva-1027Available from: 2006-05-05 Created: 2006-05-05Bibliographically approved
5. Dissociative recombination study of Na+(D2O) in a storage ring
Open this publication in new window or tab >>Dissociative recombination study of Na+(D2O) in a storage ring
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2004 In: The journal of chemical physics, ISSN 0021-9606, Vol. 121, 10483- p.Article in journal (Refereed) Published
Identifiers
urn:nbn:se:su:diva-22668 (URN)
Note
Part of urn:nbn:se:su:diva-1027Available from: 2006-05-05 Created: 2006-05-05Bibliographically approved
6. The Dissociative Recombination of Flourocarbon Ions II: CF+
Open this publication in new window or tab >>The Dissociative Recombination of Flourocarbon Ions II: CF+
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2005 In: Journal of physics. B, ISSN 1361-6455, Vol. 38, 1471-1482 p.Article in journal (Refereed) Published
Identifiers
urn:nbn:se:su:diva-22669 (URN)
Note
Part of urn:nbn:se:su:diva-1027Available from: 2006-05-05 Created: 2006-05-05Bibliographically approved
7. The Dissociative Recombination of Fluorocarbon Ions III: CF2+ and CF3+
Open this publication in new window or tab >>The Dissociative Recombination of Fluorocarbon Ions III: CF2+ and CF3+
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2006 In: Journal of physics. B, ISSN 0953-4075, Vol. 39, 805-812 p.Article in journal (Refereed) Published
Identifiers
urn:nbn:se:su:diva-22670 (URN)
Note
Part of urn:nbn:se:su:diva-1027Available from: 2006-05-05 Created: 2006-05-05Bibliographically approved
8. Rate constants and branching ratios for the dissociative recombination of CO2+
Open this publication in new window or tab >>Rate constants and branching ratios for the dissociative recombination of CO2+
Show others...
2005 In: The journal of chemical physics, ISSN 0021-9606, Vol. 122, 226101- p.Article in journal (Refereed) Published
Identifiers
urn:nbn:se:su:diva-22671 (URN)
Note
Part of urn:nbn:se:su:diva-1027Available from: 2006-05-05 Created: 2006-05-05Bibliographically approved

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