NDLI: Charge exchange and excitation cross sections at collisions of alpha particles with be-like impurity oxygen ions in a plasma

Content Provider	Springer Nature Link
Author	Nikulin, V. K. Guschina, N. A.
Copyright Year	2006
Abstract	The charge exchange and excitation cross sections at collisions of alphas with O$^{4+}$(1s $^{2}$2s $^{2}$) impurity atoms in a hot plasma for striking energies E $_{c}$ varying from 20 keV to 2 MeV are determined for the first time. The cross sections are calculated using the method of close-coupling equations with 13 singlet four-electron quasi-molecular states taken as a basis. The partial cross sections of charge transfer to the 1s, 2s, and 2p states of a He$^{+}$ ion and for O$^{4+}$(1s $^{2}$2s $^{2}$) → O$^{4+}$(1s $^{2}$2lnl’) (n = 2, 3) electronic excitation of an oxygen ion are found. The maximal value of the charge exchange total cross section roughly equals 2.2 × 10$^{−16}$ cm$^{2}$ at E $_{c}$ ≈ 0.7 MeV. The excitation total cross section has a maximum of ≈ 7.7 × 10$^{−16}$ cm$^{2}$ at E $_{c}$ ≈ 80 keV for single-electron excitation and ≈6.5 × 10$^{−16}$ cm$^{2}$ at E $_{c}$ ≈ 0.7 MeV for two-electron excitation.
Starting Page	1276
Ending Page	1283
Page Count	8
File Format	PDF
ISSN	10637842
Journal	Technical Physics
Volume Number	51
Issue Number	10
e-ISSN	10906525
Language	English
Publisher	Nauka/Interperiodica
Publisher Date	2006-01-01
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Atomic, molecular, ion, and heavy-particle collisions Mechanics, Fluids, Thermodynamics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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