Relativistic calculations of doubleK-shell-photoionization cross sections for neutral medium-Zatoms

Relativistic photoionization cross sections for C II

High resolution measurements of photoionization cross sections for atomic ions are now being made on synchrotron radiation sources. The recent measurements by Kjeldsen etal. (1999) showed good agreement between the observed resonance features and the the theoretical calculations in the close coupling approximation (Nahar 1995). However, there were several observed resonances that were missing i...

Calculations of reaction cross sections for C at relativistic energies

Few-body Glauber theory calculations of reaction cross sections for the proposed single neutron halo nucleus C are presented for an incident energy of 960 MeV/nucleon on a C target. The calculated reaction cross sections are shown to be significantly smaller than those obtained using the optical limit approximation to the Glauber theory elastic profile function. The implications of these differ...

Atomic data for opacity calculations : XX . Photoionization cross sections and oscillator strengths for Fe 11

Abshnct. Large scale ab initio calculations for the radiative data of Fe II have bcen carried out in lhe close coupling (cc) approximation employing the R-matrix method and a target slate expansion consisting of 83 LS terms of Fe 111. All bound states of Fe II with n< 10 and / <7 are considered. The results include 1301 bound states in LS coupling, oscillator strengths for 35 941 transitions am...

Absolute photoionization cross sections of atomic oxygen.

The abso lu t e va lues of t h e pho to ion iza t ion c r o s s s e c t i o n s of a tomic oxygen have been measured from t h e i o n i z a t i o n th reshold t o 120 1. An au to ion iz ing resonance belonging t o t h e 2 ~ 2 ~ ~ ( 4 ~ )3p( DO, 3s0, 3p0) t r a n s i t i o n h a s been observed a t 479.43 1 and another l i n e a t 389.97 1. The experimental d a t a is i n e x c e l l e n t agree...

The Calculation of Photoionization Cross Sections