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Title: Collisional-radiative modeling of tungsten at temperatures of 1200–2400 eV

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. As a result, 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.
Authors:
 [1] ;  [1] ;  [1] ;  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
OSTI Identifier:
1208657
Report Number(s):
LA-UR-15-21591
Journal ID: ISSN 2218-2004; ATOMC5; PII: atoms3020076; TRN: US1600626
Grant/Contract Number:
AC5206NA25396; AC52-06NA25396
Type:
Accepted Manuscript
Journal Name:
Atoms
Additional Journal Information:
Journal Volume: 3; Journal Issue: 2; Journal ID: ISSN 2218-2004
Publisher:
MDPI
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; tungsten, fusion plasma, collisional-radiative modeling; 74 ATOMIC AND MOLECULAR PHYSICS; tungsten; atomic physics; fusion plasma; collisional-radiative modeling