About: Recombination in Plasmas with Different Populations of Para and Ortho H3+

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Description	We present a study of spin-dependent recombination of H3+ ions with electrons at 77 K. A near infrared continuous wave cavity ring down spectrometer (cw-CRDS) was employed to obtain concentration evolutions of the two lowest rotational states of H3+, which have different nuclear spin (ortho and para). From the measured decrease of para-H3+ and ortho-H3+ densities during the afterglow, the effective recombination rate coefficient of H3+ was determined. Using para enriched hydrogen gas changed the [para-H3+]:[ortho-H3+] ratio. From effective recombination rate coefficients, obtained at different ortho/para ratios, the recombination rate coefficients for individual spin states were calculated. The obtained individual values of the binary recombination rate coefficients are $^p\alpha_{bin} = (1.75\pm0.4)\times10^{-7} cm^3s^{-1}$ and $^o\alpha_{bin} = (5\pm3)\times10^{-8} cm^3s{-1}$ for para-H3+ and ortho-H3+, respectively. Both values are in agreement with theoretical predictions. We present a study of spin-dependent recombination of H3+ ions with electrons at 77 K. A near infrared continuous wave cavity ring down spectrometer (cw-CRDS) was employed to obtain concentration evolutions of the two lowest rotational states of H3+, which have different nuclear spin (ortho and para). From the measured decrease of para-H3+ and ortho-H3+ densities during the afterglow, the effective recombination rate coefficient of H3+ was determined. Using para enriched hydrogen gas changed the [para-H3+]:[ortho-H3+] ratio. From effective recombination rate coefficients, obtained at different ortho/para ratios, the recombination rate coefficients for individual spin states were calculated. The obtained individual values of the binary recombination rate coefficients are $^p\alpha_{bin} = (1.75\pm0.4)\times10^{-7} cm^3s^{-1}$ and $^o\alpha_{bin} = (5\pm3)\times10^{-8} cm^3s{-1}$ for para-H3+ and ortho-H3+, respectively. Both values are in agreement with theoretical predictions. (en)
Title	Recombination in Plasmas with Different Populations of Para and Ortho H3+ Recombination in Plasmas with Different Populations of Para and Ortho H3+ (en)
skos:prefLabel	Recombination in Plasmas with Different Populations of Para and Ortho H3+ Recombination in Plasmas with Different Populations of Para and Ortho H3+ (en)
skos:notation	RIV/00216208:11320/10:10080641!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 Kotrík, Tomáš 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	284201
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/10:10080641
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	para-hydrogen; H3+; infra-red spectroscopy; CRDS; plasma (en)
http://linked.open.../riv/klicoveSlovo	infra-red spectroscopy plasma H3+ CRDS para-hydrogen
http://linked.open...ontrolniKodProRIV	[C8B796DE4FB3]
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	7 (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 Kotrík, Tomáš Plašil, Radek Jílek, Mojmír Hejduk, Michal Varju, Jozef
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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