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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F10%3A10080640%21RIV11-GA0-11320___
rdf:type
n13:Vysledek skos:Concept
dcterms: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.
dcterms: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
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
skos:notation
RIV/00216208:11320/10:10080640!RIV11-GA0-11320___
n3:aktivita
n15:S n15:P n15:Z
n3:aktivity
P(GA202/07/0495), P(GA202/09/0642), P(GA205/09/1183), P(GD202/08/H057), S, Z(MSM0021620834)
n3:dodaniDat
n21:2011
n3:domaciTvurceVysledku
n14:6235034 n14:2913623 n14:9667334 n14:6787703 n14:6512895 n14:3847632 n14:8133824
n3:druhVysledku
n19:D
n3:duvernostUdaju
n9:S
n3:entitaPredkladatele
n20:predkladatel
n3:idSjednocenehoVysledku
259552
n3:idVysledku
RIV/00216208:11320/10:10080640
n3:jazykVysledku
n17:eng
n3:klicovaSlova
para-hydrogen; para states; H3+; plasma; CRDS; afterglow; chemical kinetics
n3:klicoveSlovo
n16:plasma n16:para%20states n16:para-hydrogen n16:chemical%20kinetics n16:CRDS n16:H3%2B n16:afterglow
n3:kontrolniKodProRIV
[88267F15906A]
n3:mistoKonaniAkce
Praha
n3:mistoVydani
Praha
n3:nazevZdroje
WDS'10 Proceedings of Contributed Papers: Part II - Physics of Plasmas and Ionized Media
n3:obor
n10:BL
n3:pocetDomacichTvurcuVysledku
7
n3:pocetTvurcuVysledku
8
n3:projekt
n7:GA202%2F07%2F0495 n7:GA205%2F09%2F1183 n7:GD202%2F08%2FH057 n7:GA202%2F09%2F0642
n3:rokUplatneniVysledku
n21:2010
n3:tvurceVysledku
Jílek, Mojmír Roučka, Štěpán Plašil, Radek Dohnal, Petr Hejduk, Michal Lang, J. Glosík, Juraj Varju, Jozef
n3:typAkce
n18:EUR
n3:zahajeniAkce
2010-06-01+02:00
n3:zamer
n11:MSM0021620834
s:numberOfPages
6
n22:hasPublisher
Matfyzpress
n12:isbn
978-80-7378-140-8
n8:organizacniJednotka
11320