{"id":189,"date":"2024-10-31T15:28:34","date_gmt":"2024-10-31T14:28:34","guid":{"rendered":"http:\/\/wwww.icp.universite-paris-saclay.fr\/capri\/?page_id=189"},"modified":"2025-10-29T17:33:13","modified_gmt":"2025-10-29T16:33:13","slug":"measurement-of-reaction-cross-sections","status":"publish","type":"page","link":"https:\/\/www.icp.universite-paris-saclay.fr\/capri\/en\/reactivity-of-ions\/measurement-of-reaction-cross-sections\/","title":{"rendered":"Measurement of Reaction Cross Sections of Ion-Molecule Reactions, Effects of Internal and Collision Energy for Astrochemistry and Industrial Plasma Chemistry"},"content":{"rendered":"

Measurement of Reaction Cross Sections of Ion-Molecule Reactions, Effects of Internal and Collision Energy for Astrochemistry and Industrial Plasma Chemistry<\/h3>\n
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Roland Thissen (Senior Researcher), Claire Romanzin (Associate Prof), Christian Alcaraz (Benevolent Researcher)<\/p>\n<\/div>\n<\/div><\/div><\/div>

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The CERISES platform<\/a>, associated with \u00a0the DESIRS beamline<\/a> of the SOLEIL synchrotron<\/a> provides a unique approach for the detailed description of the reactive dynamics of small molecular systems. This enables the simulation of elementary acts as they may occur in planetary atmospheres or the interstellar medium, while also providing absolute reaction cross sections.<\/p>\n

By utilizing a radical source, the team has successfully reacted CH3+ in an adjustable internal energy state with small oxygenated molecules. They have also investigated the effects of selected states on the reactivity of O2+ with small hydrocarbons and volatile organic compounds, and explored the effect of isomerism by comparing the reactivity of HCO+ and COH+.<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div>

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Notable results from these studies include<\/p>\n