Simulation study of neutral tungsten emissions for fusion applications

2025/08/31 by R. Dey, Dey, Ritu, Reetesh Kumar Gangwar +10
Materials Science · Physics and Astronomy · #Atomic Physics (physics.atom-ph) #Atomic and Molecular Physics #FOS: Physical sciences #Fusion materials and technologies #Plasma Physics (physics.plasm-ph) #Vacuum and Plasma Arcs

paper · pdf · doi:10.48550/arxiv.2509.00878

openalex publication_date 2025/08/31 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The article reports electron-impact excitation cross-sections and rate coefficients for neutral tungsten for three transitions (400.87 nm, 429.46 nm, and 430.21 nm) using the relativistic distorted wave approach within the flexible atomic code. Some of these lines are also observed in tokamak plasma. Cross-sections are computed for incident electron energy up to 30 keV. The energy levels in flexible atomic code were corrected to match the NIST database. The electron impact excitation rate coefficients are also provided.

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