Electron-ion recombination in low temperature hydrogen/deuterium plasma

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10371710" target="_blank" >RIV/00216208:11320/18:10371710 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1051/epjap/2017170228" target="_blank" >http://dx.doi.org/10.1051/epjap/2017170228</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/epjap/2017170228" target="_blank" >10.1051/epjap/2017170228</a>

Result language
angličtina
Original language name
Electron-ion recombination in low temperature hydrogen/deuterium plasma
Original language description
The stationary afterglow with cavity ring down spectrometer (SA-CRDS) was used to study the recombination of H-3(+), H2D+, HD2+ and D-3(+) ions with electrons in low temperature (77-300 K) plasmas in He/Ar/ H-2/D-2 gas mixtures. By measuring effective recombination rate coefficients (alpha(eff)) in plasma with mixtures of ions and their dependences on temperature and partial densities of He, H-2 and D-2, alpha(eff) (T, [He],[H-2],[D-2]), we determined binary (alpha(binH3), alpha(binH2D), alpha(binHD2), alpha(binD3)) and ternary (K-H3, K-H2D, K-HD2, K-D3) recombination rate coefficients for H-3(+), H2D+, HD2+ and D-3(+) ions. For all four ions we observed very efficient He assisted ternary recombination which is comparable with binary recombination already at [He] = 1 x 10(17) cm(-3). The removal of excited particles in afterglow plasma was monitored to obtain the plasma thermalisation rate at given experimental conditions. The inferred deexcitation rates for reaction of helium metastable atoms with D-2 are k(D2) (300 K)=(2.1 +/- 0.3) x 10(-10) cm(3) s(-1) and k(D2) (140 K)=(1.3 +/- 0.3) x 10(-10) cm(3) s(-1).
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)

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)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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