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Low-energy collisions between electrons and BeD+
Stockholm University, Faculty of Science, Department of Physics.
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Number of Authors: 142018 (English)In: Plasma sources science & technology (Print), ISSN 0963-0252, E-ISSN 1361-6595, Vol. 27, no 2, article id 025015Article in journal (Refereed) Published
Abstract [en]

Multichannel quantum defect theory is applied in the treatment of the dissociative recombination and vibrational excitation processes for the BeD+ ion in the 24 vibrational levels of its ground electronic state (X (1)Sigma(+), v(i)(+) = 0 ... 23). Three electronic symmetries of BeD** states ((2)Pi, (2)Sigma(+), and (2)Delta) are considered in the calculation of cross sections and the corresponding rate coefficients. The incident electron energy range is 10(-5)-2.7 eV and the electron temperature range is 100-5000 K. The vibrational dependence of these collisional processes is highlighted. The resulting data are useful in magnetic confinement fusion edge plasma modeling and spectroscopy, in devices with beryllium based main chamber materials, such as ITER and JET, and operating with the deuterium-tritium fuel mix. An extensive rate coefficients database is presented in graphical form and also by analytic fit functions whose parameters are tabulated in the supplementary material.

Place, publisher, year, edition, pages
2018. Vol. 27, no 2, article id 025015
Keywords [en]
fusion plasma, BeD+, dissociative recombination
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-154632DOI: 10.1088/1361-6595/aaabefISI: 000425980600001OAI: oai:DiVA.org:su-154632DiVA, id: diva2:1194941
Available from: 2018-04-04 Created: 2018-04-04 Last updated: 2018-04-04Bibliographically approved

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Iacob, F.Larson, ÅsaLaporta, V.Tennyson, J.
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