Close-couplingR-matrix calculations for electron-ion recombination cross sections
نویسندگان
چکیده
منابع مشابه
Close-coupling R-matrix calculations for electron–ion recombination cross sections
Close-coupling (CC) calculations of electron–ion recombination cross sections using the R-matrix method are presented and benchmarked with available experimental measurements. The electron–ion recombination process, including resonant and non-resonant recombination may be unified as a natural extension of the coupled-channel approximation, as traditionally employed for photoionization and elect...
متن کاملELECTRON-ION RECOMBINATION RATE COEFFICIENTS AND PHOTOIONIZATION CROSS SECTIONS FOR ASTROPHYSICALLY ABUNDANT ELEMENTS VI. Ni II
We present the first detailed ab initio quantum mechanical calculations for total and state-specific recombination rate coefficients for e + Ni III → Ni II. These rates are obtained using a unified treatment for total electron-ion recombination that treats the nonresonant radiative recombination and the resonant dielectronic recombination in a self-consistent unified manner in the close couplin...
متن کاملSelf-consistent ab initio calculations for photoionization and electron-ion recombination using the R-matrix method
Most astrophysical plasmas entail a balance between ionization and recombination. We present new results from the powerful R-matrix method which yields in an ab initio manner: (I) self-consistent photoionization and recombination cross sections using identical wavefunction expansions, (II) unified e-ion recombination rates at all temperatures of interest, incorporating non-resonant and resonant...
متن کاملR-matrix calculations of differential and integral cross sections for low-energy electron collisions with ethanol
Electron collisions with C2H5OH are studied up to impact energies of 10 eV using several theoretical models. Calculated differential cross sections suggest that the extrapolation to low angles used to extend experimental data and hence give integral cross sections significantly underestimates the large, dipole-driven forward scattering cross section. An improved set of values for the rotational...
متن کاملElectron Loss Cross Sections for a Heavy Ion Beam Probe
Electron loss cross sections of Au and Au2+ by electron and proton impact are calculated by using respectively the Lotz formula and the LOSS and CAPTURE computer codes. The corresponding rate coefficients have also been calculated. Using this information, the signal levels of heavy ion beam probe in the Large Helical Device are estimated. The calculated beam currents at the detector position ar...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Physics B: Atomic, Molecular and Optical Physics
سال: 1999
ISSN: 0953-4075,1361-6455
DOI: 10.1088/0953-4075/32/6/010