Dynamics of N5+-H electron capture in Debye plasmas

Matter and Radiation at Extremes - Tập 1 - Trang 114-122 - 2016
L. Liu1, J.G. Wang1
1Data Center for High Energy Density Physics, Institute of Applied Physics and Computational Mathematics, P. O. Box 8009-26, Beijing, 100088, People's Republic of China

Tóm tắt

The electron capture in N5+-H collisions imbedded in a Debye plasma is studied by using the two-center atomic orbital close-coupling method in the energy range from 1 keV/u to 200 keV/u. The atomic orbitals and electron binding energies of atomic states are calculated within the Debye–Hückel approximation of the screened Coulomb potential and used in atomic orbital close-coupling dynamics formalism to calculate the electron capture cross sections. The electron capture cross sections and the charge transfer spectral lines of N4+(1s2nl) for a number of representative screening parameter values are presented and discussed. It is found that the screening of Coulomb interactions affects the entire collision dynamics and the magnitude and energy behavior of state-selective cross sections. The changes in electron binding energies and capture cross sections when the interaction screening varies introduce dramatic changes in the radiation spectrum of N4+(1s2nl) capture states with respect to the unscreened interaction case.

Tài liệu tham khảo

1985, Total capture and line-emission cross sections for C6+-, N7+-, O8+-H collisions in the energy range 3–7.5 keV/u, Phys. Rev. Lett., 54, 1004, 10.1103/physrevlett.54.1004 1985, Low-energy total-electron-capture cross sections for fully stripped and H-like projectiles incident on H and H2, Phys. Rev. A, 32, 3310, 10.1103/physreva.32.3310 1984, Atomic-orbital-expansion studies of electron transfer in bare-nucleus Z(Z = 2,4−8)—hydrogen-atom collisions, Phys. Rev. A, 29, 3039, 10.1103/physreva.29.3039 1985 2006, Hyperspherical close-coupling calculations for electron-capture cross sections in low-energy Ne10++H(1s) collisions, Phys. Rev. A, 74, 012720, 10.1103/physreva.74.012720 1987, Plasma screening effects on proton-impact excitation of positive ions, Phys. Rev. A, 35, 1252, 10.1103/physreva.35.1252 1998, Semiclassical electron capture probabilities for proton–hydrogenic ion collisions in dense plasmas, Phys. Plasmas, 5, 2806, 10.1063/1.872968 1998, Dynamic plasma screening effects on semiclassical electron captures from hydrogenic ions by protons in weakly coupled plasmas, Phys. Plasmas, 5, 3493, 10.1063/1.873066 2005, Plasma screening effects on resonant charge transfer in strongly coupled plasmas, Europhys. Lett., 69, 753, 10.1209/epl/i2004-10402-4 2007, Charge exchange and ionization in hydrogen atom-fully stripped ion collisions in Debye plasmas, Phys. Plasmas, 14, 053505, 10.1063/1.2736675 2013, Investigation of charge transfer and ionization in He-like systems (Li+, Be2+, B3+, C4+, N5+, O6+)-hydrogen atom collisions in Debye plasmas, Phys. Plasmas, 20, 022104, 10.1063/1.4790663 2008, Atomic collisions with screened Coulomb interactions: Excitation and electron capture in H+ + H collisions, J. Phys. B, 41, 135202, 10.1088/0953-4075/41/13/135202 2008, Dynamics of He2++H(1s) excitation and electron-capture processes in Debye plasmas, Phys. Rev. A, 77, 032709, 10.1103/physreva.77.032709 2008, Dynamics of He2++H(1s) ionization with screened Coulomb interactions, Phys. Rev. A, 77, 042712, 10.1103/physreva.77.042712 2011, Polarization spectroscopy of He+(nl) produced in collisions of He2+ with H in Debye plasmas, Phys. Rev. A, 83, 012712, 10.1103/physreva.83.012712 2009, Dynamics of O8++H electron capture in Debye plasmas, Phys. Rev. A, 79, 052702, 10.1103/physreva.79.052702 1981, Electron capture and ionisation in C5+, N5+, O6++H collisions, J. Phys. B, 14, 869, 10.1088/0022-3700/14/5/021 1985, Electron capture from atomic hydrogen by multiply charged ions in low energy collisions, J. Phys., 46, 561, 10.1051/jphys:01985004604056100 1985, Charge transfer in low-energy collisions of N3+, C4+ and N5+ with H and H2, J. Phys. B, 18, 463, 10.1088/0022-3700/18/3/021 1984, Electron capture by C4+, N5+ and O6+ from atomic hydrogen in the keV amu−1 energy range, J. Phys. B, 17, L323, 10.1088/0022-3700/17/10/002 1988, Electron capture by slow multicharged ions: Core effect on final 1 distributions, J. Phys. B, 21, 859, 10.1088/0953-4075/21/5/015 1991, Electron capture in collisions of N5+ ions with H atoms from the meV to keV energy regions, Phys. Rev. A, 44, 1659, 10.1103/physreva.44.1659 2001, Inelastic processes in the interactions of partially stripped ions of carbon, nitrogen and oxygen with atomic hydrogen at intermediate and high energies, J. Phys. B, 34, 755, 10.1088/0953-4075/34/5/305 2006, State selective electron capture in partially stripped ion-atom interaction at intermediate and high energies, Eur. Phys. J. D, 38, 257, 10.1140/epjd/e2006-00008-4 1997, Convergent TCAO close-coupling calculations for electron transfer, excitation and ionization in intermediate keV He2+-H collisions, J. Phys. B, 30, 101, 10.1088/0953-4075/30/1/012 1963, Use of Gaussian functions in the calculation of wavefunctions for small molecules. I. Preliminary investigations, J. Chem. Phys., 39, 1, 10.1063/1.1733982 1988, Atomic data for opacity calculations. IX. The lithium isoelectronic sequence, J. Phys. B, 21, 3669, 10.1088/0953-4075/21/22/006 2012, State-selective electron capture in N5+-H and O6+-H collisions, J. Phys. B, 45, 015202, 10.1088/0953-4075/45/1/015202 1985, Subshell-selective electron capture in collisions of C4+, N5+, O6+ with H, H2 and He, J. Phys. B, 18, 4763, 10.1088/0022-3700/18/24/017 1978, Single-electron capture by multiply charged ions of carbon, nitrogen, and oxygen in atomic and molecular hydrogen, Phys. Rev. A, 17, 534, 10.1103/physreva.17.534
Thông tin
Thông tin xuất bản

Matter and Radiation at Extremes

Tập 1

114-122

Thông tin tác giả