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

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F10%3A10080641" target="_blank" >RIV/00216208:11320/10:10080641 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Recombination in Plasmas with Different Populations of Para and Ortho H3+
Original language 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 $^palpha_{bin} = (1.75pm0.4)times10^{-7} cm^3s^{-1}$ and $^oalpha_{bin} = (5pm3)times10^{-8} cm^3s{-1}$ for para-H3+ and ortho-H3+, respectively. Both values are in agreement with theoretical predictions.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
WDS'10 Proceedings of Contributed Papers: Part II - Physics of Plasmas and Ionized Media
ISBN
978-80-7378-140-8
ISSN
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e-ISSN
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Number of pages
6
Pages from-to
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Publisher name
Matfyzpress
Place of publication
Praha
Event location
Praha
Event date
Jun 1, 2010
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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