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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F10%3A10080641%21RIV11-GA0-11320___
rdf:type
n20:Vysledek skos:Concept
dcterms: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.
dcterms:title
Recombination in Plasmas with Different Populations of Para and Ortho H3+ Recombination in Plasmas with Different Populations of Para and Ortho H3+
skos:prefLabel
Recombination in Plasmas with Different Populations of Para and Ortho H3+ Recombination in Plasmas with Different Populations of Para and Ortho H3+
skos:notation
RIV/00216208:11320/10:10080641!RIV11-GA0-11320___
n4:aktivita
n12:Z n12:S n12:P
n4:aktivity
P(GA202/07/0495), P(GA202/09/0642), P(GA205/09/1183), P(GD202/08/H057), S, Z(MSM0021620834)
n4:dodaniDat
n8:2011
n4:domaciTvurceVysledku
n7:2913623 n7:9667334 n7:6787703 n7:3847632 n7:8133824 n7:6235034 n7:9417559
n4:druhVysledku
n11:D
n4:duvernostUdaju
n14:S
n4:entitaPredkladatele
n22:predkladatel
n4:idSjednocenehoVysledku
284201
n4:idVysledku
RIV/00216208:11320/10:10080641
n4:jazykVysledku
n21:eng
n4:klicovaSlova
para-hydrogen; H3+; infra-red spectroscopy; CRDS; plasma
n4:klicoveSlovo
n6:CRDS n6:para-hydrogen n6:H3%2B n6:infra-red%20spectroscopy n6:plasma
n4:kontrolniKodProRIV
[C8B796DE4FB3]
n4:mistoKonaniAkce
Praha
n4:mistoVydani
Praha
n4:nazevZdroje
WDS'10 Proceedings of Contributed Papers: Part II - Physics of Plasmas and Ionized Media
n4:obor
n16:BL
n4:pocetDomacichTvurcuVysledku
7
n4:pocetTvurcuVysledku
7
n4:projekt
n10:GD202%2F08%2FH057 n10:GA202%2F09%2F0642 n10:GA202%2F07%2F0495 n10:GA205%2F09%2F1183
n4:rokUplatneniVysledku
n8:2010
n4:tvurceVysledku
Glosík, Juraj Varju, Jozef Kotrík, Tomáš Jílek, Mojmír Plašil, Radek Dohnal, Petr Hejduk, Michal
n4:typAkce
n5:EUR
n4:zahajeniAkce
2010-06-01+02:00
n4:zamer
n15:MSM0021620834
s:numberOfPages
6
n13:hasPublisher
Matfyzpress
n19:isbn
978-80-7378-140-8
n17:organizacniJednotka
11320