Demonstrating the impact of ro-vibrationally excited H2 on divertor detachment via population modelling

IF 2.7 2区 物理与天体物理 Q1 NUCLEAR SCIENCE & TECHNOLOGY Nuclear Materials and Energy Pub Date : 2025-03-01 Epub Date: 2025-02-10 DOI:10.1016/j.nme.2025.101895
Richard C. Bergmayr , Dirk Wünderlich , Mathias Groth , Liam H. Scarlett , Dmitry V. Fursa , Mark C. Zammit , Igor Bray , Ursel Fantz
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Abstract

EDGE2D-EIRENE profiles characteristic for low recycling, high recycling and detached plasmas are postprocessed applying a vibrationally resolved collisional radiative (CR) model based on the Yacora solver to predict excited state densities and thus the molecular Lyman-, Werner- and Fulcher band emission intensities. These emission intensities are compared to predictions from the AMJUEL database standardly used in EIRENE. Lower Fulcher band and higher Lyman- and Werner band emission is predicted by the Yacora model in comparison to AMJUEL suggesting that inconsistent results from model based evaluation of measured spectra are expected depending on which model and molecular emission band is considered. The implications on detachment rate predictions are discussed.
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通过人口模型证明反振动激发H2对分流器脱离的影响
EDGE2D-EIRENE剖面具有低循环、高循环和分离等离子体的特征,应用基于Yacora求解器的振动分辨碰撞辐射(CR)模型进行后处理,以预测激发态密度,从而预测分子Lyman, Werner和Fulcher波段发射强度。这些排放强度与EIRENE标准使用的AMJUEL数据库的预测结果进行了比较。与AMJUEL相比,Yacora模型预测了较低的Fulcher波段和较高的Lyman和Werner波段发射,这表明基于模型的测量光谱评估结果可能不一致,这取决于所考虑的模型和分子发射波段。讨论了分离率预测的意义。
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来源期刊
Nuclear Materials and Energy
Nuclear Materials and Energy Materials Science-Materials Science (miscellaneous)
CiteScore
3.70
自引率
15.40%
发文量
175
审稿时长
20 weeks
期刊介绍: The open-access journal Nuclear Materials and Energy is devoted to the growing field of research for material application in the production of nuclear energy. Nuclear Materials and Energy publishes original research articles of up to 6 pages in length.
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