# Radiative recombination data for tungsten ions: II. W{sup 47+}–W{sup 71+}

## Abstract

New radiative recombination and photoionization cross sections, radiative recombination rate coefficients, and radiated power loss rate coefficients are presented for 23 tungsten impurity ions in plasmas. We consider ions from W{sup 47+} to W{sup 71+} that are of importance to fusion studies for ITER and for experiments using electron beam ion traps. The calculations are fully relativistic and all significant multipoles of the radiative field are taken into account. The Dirac–Fock method is used to compute the electron wavefunctions. Radiative recombination rates and radiated power loss rates are found using the relativistic Maxwell–Jüttner distribution of the continuum electron velocity. The total radiative recombination cross sections are given in the electron energy range from 1 eV to ∼80keV. Partial cross sections for ground and excited states are approximated by an analytical expression involving five fit parameters. Radiative recombination rates and radiated power loss rates are calculated in the temperature range from 10{sup 4}K to 10{sup 9}K. The total radiative recombination rates are approximated by another analytical expression with four fit parameters.

- Authors:

- Petersburg Nuclear Physics Institute, Gatchina 188300 (Russian Federation)
- Ioffe Physical Technical Institute, St. Petersburg 194021 (Russian Federation)

- Publication Date:

- OSTI Identifier:
- 22314850

- Resource Type:
- Journal Article

- Resource Relation:
- Journal Name: Atomic Data and Nuclear Data Tables; Journal Volume: 100; Journal Issue: 4; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; CROSS SECTIONS; ELECTRON BEAMS; ELECTRONS; EV RANGE; EXCITED STATES; HARTREE-FOCK METHOD; ITER TOKAMAK; MULTICHARGED IONS; MULTIPOLES; PHOTOIONIZATION; PHOTON-ION COLLISIONS; POWER LOSSES; RECOMBINATION; RELATIVISTIC RANGE; TRAPS; TUNGSTEN IONS; WAVE FUNCTIONS

### Citation Formats

```
Trzhaskovskaya, M.B., E-mail: Trzhask@MT5605.spb.edu, and Nikulin, V.K.
```*Radiative recombination data for tungsten ions: II. W{sup 47+}–W{sup 71+}*. United States: N. p., 2014.
Web. doi:10.1016/J.ADT.2013.11.004.

```
Trzhaskovskaya, M.B., E-mail: Trzhask@MT5605.spb.edu, & Nikulin, V.K.
```*Radiative recombination data for tungsten ions: II. W{sup 47+}–W{sup 71+}*. United States. doi:10.1016/J.ADT.2013.11.004.

```
Trzhaskovskaya, M.B., E-mail: Trzhask@MT5605.spb.edu, and Nikulin, V.K. Tue .
"Radiative recombination data for tungsten ions: II. W{sup 47+}–W{sup 71+}". United States.
doi:10.1016/J.ADT.2013.11.004.
```

```
@article{osti_22314850,
```

title = {Radiative recombination data for tungsten ions: II. W{sup 47+}–W{sup 71+}},

author = {Trzhaskovskaya, M.B., E-mail: Trzhask@MT5605.spb.edu and Nikulin, V.K.},

abstractNote = {New radiative recombination and photoionization cross sections, radiative recombination rate coefficients, and radiated power loss rate coefficients are presented for 23 tungsten impurity ions in plasmas. We consider ions from W{sup 47+} to W{sup 71+} that are of importance to fusion studies for ITER and for experiments using electron beam ion traps. The calculations are fully relativistic and all significant multipoles of the radiative field are taken into account. The Dirac–Fock method is used to compute the electron wavefunctions. Radiative recombination rates and radiated power loss rates are found using the relativistic Maxwell–Jüttner distribution of the continuum electron velocity. The total radiative recombination cross sections are given in the electron energy range from 1 eV to ∼80keV. Partial cross sections for ground and excited states are approximated by an analytical expression involving five fit parameters. Radiative recombination rates and radiated power loss rates are calculated in the temperature range from 10{sup 4}K to 10{sup 9}K. The total radiative recombination rates are approximated by another analytical expression with four fit parameters.},

doi = {10.1016/J.ADT.2013.11.004},

journal = {Atomic Data and Nuclear Data Tables},

number = 4,

volume = 100,

place = {United States},

year = {Tue Jul 15 00:00:00 EDT 2014},

month = {Tue Jul 15 00:00:00 EDT 2014}

}