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Atoms 2015, 3(2), 76-85; doi:10.3390/atoms3020076

Collisional-Radiative Modeling of Tungsten at Temperatures of 1200–2400 eV

Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
Computational Physics Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
Author to whom correspondence should be addressed.
Academic Editors: Bastiaan J. Braams and Alfred Müller
Received: 4 March 2015 / Accepted: 17 April 2015 / Published: 30 April 2015
(This article belongs to the Special Issue Atomic Data for Tungsten)
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We discuss new collisional-radiative modeling calculations of tungsten at moderate temperatures of 1200 to 2400 eV. Such plasma conditions are relevant to ongoing experimental work at ASDEX Upgrade and are expected to be relevant for ITER. Our calculations are made using the Los Alamos National Laboratory (LANL) collisional-radiative modeling ATOMIC code. These calculations formed part of a submission to the recent NLTE-8 workshop that was held in November 2013. This series of workshops provides a forum for detailed comparison of plasma and spectral quantities from NLTE collisional-radiative modeling codes. We focus on the LANL ATOMIC calculations for tungsten that were submitted to the NLTE-8 workshop and discuss different models that were constructed to predict the tungsten emission. In particular, we discuss comparisons between semi-relativistic configuration-average and fully relativistic configuration-average calculations. We also present semi-relativistic calculations that include fine-structure detail, and discuss the difficult problem of ensuring completeness with respect to the number of configurations included in a CR calculation. View Full-Text
Keywords: tungsten, fusion plasma, collisional-radiative modeling tungsten, fusion plasma, collisional-radiative modeling

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Colgan, J.; Fontes, C.J.; Zhang, H.; Abdallah, J., Jr. Collisional-Radiative Modeling of Tungsten at Temperatures of 1200–2400 eV. Atoms 2015, 3, 76-85.

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