Speaker
Mr
Lianshui zhao
(The Ohio State University)
Description
We have carried out converged close coupling R-Matrix (CCC-RM) calculations for photoionization of Ne-like Fe XVII and demonstrated orders-of-magnitude enhancements in cross section due to successive core excitations. Convergence criteria are: (i) inclusion of sufficient number of residual ion Fe XVIII core states, (ii) high-resolution of myriad autoionizing resonances, and (iii) high-energy cross sections. Distorted wave (DW) calculation has been done for configurations not included in CCC-RM but in OP and OPAL to top up the background opacity, and its contribution will be reported. We will discuss verification of the conventional oscillator strength sum-rule in limited energy regions for bound-free plasma opacity. We will also report preliminary results from R-matrix calculation of photoionization cross section of other L shell iron ions.
Primary author
Mr
Lianshui zhao
(The Ohio State University)
Co-authors
Prof.
Anil Pradhan
(The Ohio State University)
Prof.
Sultana nahar
(The Ohio State University)
Prof.
Werner eissner
(Stuttgart University)
