High-resolution measurements of the integral cross-section for the reaction Ar++H2→ArH++H as a function of the collision energy

Autor:	Paolo Tosi, Davide Bassi, Fausto Eccher, Franco Boldo, Mauro Filippi
Rok vydání:	1989
Předmět:	Argon Ion beam Scattering Resolution (electron density) General Physics and Astronomy chemistry.chemical_element Diatomic molecule Ion Cross section (physics) chemistry Physical and Theoretical Chemistry Atomic physics Nuclear Experiment Molecular beam
Zdroj:	Chemical Physics Letters. 164:471-474
ISSN:	0009-2614
Popis:	A continuous, supersonic molecular beam is crossed at 90° with a radio-frequency guided ion beam in a tandem mass spectrometer. This experimental configuration makes possible measurements of the integral reactive cross-section as a function of collision energy with a much higher energy resolution with respect to previous experiments. For the reaction of Ar+ with H2 to form ArH+ a new feature is observed at a collision energy of about 0.05 eV. This is interpreted as a change in the reaction mechanism. When averaged over the appropriate thermal distribution our results are in good agreement with published values obtained in experiments using a room-temperature scattering cell.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3d7688dc0a0fbd38a839ca1570acb9c9 https://doi.org/10.1016/0009-2614(89)85240-6 Zobrazit plný text záznamu