Theoretical Investigation of Dielectronic Recombination Rate Coefficients ofW44+ Ions
doi: 10.11804/NuclPhysRev.30.02.214
- Received Date: 1900-01-01
- Rev Recd Date: 1900-01-01
- Publish Date: 2013-06-20
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Key words:
- dielectronic recombination /
- DR rate coefficient /
- W44+ ions
Abstract: Based on the fully relativistic configuration interaction method, theoretical calculations are carried out to research the dielectronic recombination (DR) processes, in which W44+ ions in the ground state 3s23p63d104s2 trap an electron to form doubly excited states (3s23p63d104s2)nln’l’(n =4~6,n′= 4~7). The comparison of the DR rate coefficients of different shells shows that DR approach is as follow: the 4s subshell excitation dominates to DR at low temperature, but 3d subshell excitation attributes to DR at high temperature. Total DR rate coefficients from n=4~18 are evaluated directly, and the results are extrapolated up to n = 100 in the temperature range from 1 to 5×104 eV, and thus get the total DR rate coefficients. Compared total DR rate coefficients to three-body recombination (TBR) rate coefficients and radiative recombination (RR) rate coefficients, it showed that the total DR rate coefficients obviously significantly greater than other two recombination rate coefficients, and thus it obviously influence ionization equilibrium and ionization state population of ITER plasma.
Citation: | MA Xingze, FU Yanbiao, LI Maijuan, ZHANG Guoding, ZHANG Yizhao, DONG Chenzhong. Theoretical Investigation of Dielectronic Recombination Rate Coefficients ofW44+ Ions[J]. Nuclear Physics Review, 2013, 30(2): 214-219. doi: 10.11804/NuclPhysRev.30.02.214 |