About: Formation and Destruction of Para and Ortho H3+ in Discharge and Afterglow. Experiments with Para-Hydrogen

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In the present work, we investigated the time evolution of the H3+ ion's concentration in para and ortho states separately in a pulsed microwave discharge (in a He/Ar/H2 gas mixture) and in afterglow plasma. For this purpose, a near infra-red cavity ring-down spectrometer (CRDS) was used. In the experiments, we observed conversion between both nuclear spin states and production of H3+ in afterglow. We constructed the model of chemical kinetics for discharge and afterglow to explain such production process. The anomaly in plasma decay was found to be possibly caused by reaction chain initiated by excited argon atoms and ArH+ ions remaining in the beginning of the afterglow. The hydrogen gas concentration seems to be crucial for the speed of establishment of a steady state ratio between para-H3+ and ortho-H3+ in the afterglow. In the present work, we investigated the time evolution of the H3+ ion's concentration in para and ortho states separately in a pulsed microwave discharge (in a He/Ar/H2 gas mixture) and in afterglow plasma. For this purpose, a near infra-red cavity ring-down spectrometer (CRDS) was used. In the experiments, we observed conversion between both nuclear spin states and production of H3+ in afterglow. We constructed the model of chemical kinetics for discharge and afterglow to explain such production process. The anomaly in plasma decay was found to be possibly caused by reaction chain initiated by excited argon atoms and ArH+ ions remaining in the beginning of the afterglow. The hydrogen gas concentration seems to be crucial for the speed of establishment of a steady state ratio between para-H3+ and ortho-H3+ in the afterglow. (en)
Title	Formation and Destruction of Para and Ortho H3+ in Discharge and Afterglow. Experiments with Para-Hydrogen Formation and Destruction of Para and Ortho H3+ in Discharge and Afterglow. Experiments with Para-Hydrogen (en)
skos:prefLabel	Formation and Destruction of Para and Ortho H3+ in Discharge and Afterglow. Experiments with Para-Hydrogen Formation and Destruction of Para and Ortho H3+ in Discharge and Afterglow. Experiments with Para-Hydrogen (en)
skos:notation	RIV/00216208:11320/10:10080640!RIV11-GA0-11320___
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(GA202/07/0495), P(GA202/09/0642), P(GA205/09/1183), P(GD202/08/H057), S, Z(MSM0021620834)
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Plašil, Radek Dohnal, Petr Roučka, Štěpán Glosík, Juraj Varju, Jozef Hejduk, Michal Jílek, Mojmír
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	259552
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/10:10080640
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	para-hydrogen; para states; H3+; plasma; CRDS; afterglow; chemical kinetics (en)
http://linked.open.../riv/klicoveSlovo	chemical kinetics afterglow plasma H3+ CRDS para states para-hydrogen
http://linked.open...ontrolniKodProRIV	[88267F15906A]
http://linked.open...v/mistoKonaniAkce	Praha
http://linked.open...i/riv/mistoVydani	Praha
http://linked.open...i/riv/nazevZdroje	WDS'10 Proceedings of Contributed Papers: Part II - Physics of Plasmas and Ionized Media
http://linked.open...in/vavai/riv/obor	BL
http://linked.open...ichTvurcuVysledku	7 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...vavai/riv/projekt	Interaction of cold electrons with molecules and ions: Cryogenic magnetic electron trap Recombination in cryogenic plasma Laboratory astrophysics: Formation and recombination of astrophysically relevant ions. Modern trends in plasma physics
http://linked.open...UplatneniVysledku	2010
http://linked.open...iv/tvurceVysledku	Dohnal, Petr Glosík, Juraj Plašil, Radek Roučka, Štěpán Jílek, Mojmír Hejduk, Michal Varju, Jozef Lang, J.
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open.../riv/zahajeniAkce	2010-06-01 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Condensed Matter Physics – New Materials and Technologies
number of pages	6 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Matfyzpress
https://schema.org/isbn	978-80-7378-140-8
http://localhost/t...ganizacniJednotka	11320

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