FusionPapers
図版検索トレンドwiki日本の研究
© 2026 FUSIONPAPERS
About法務情報
トップに戻る

The role of plasma-molecule interactions on power and particle balance during detachment on the TCV tokamak

K. Verhaegh, B. Lipschultz, J.R. Harrison, B.P. Duval, A. Fil, M. Wensing, C. Bowman, D.S. Gahle, A. Kukushkin, D. Moulton2021年被引用 24Nuclear FusionIF 3出版社

This paper shows experimental results from the TCV tokamak that indicate plasma-molecule interactions involving and possibly D− play an important role as sinks of energy (through hydrogenic radiation as well as dissociation) and particles (ions) during divertor detachment if low target temperatures (<3 eV) are achieved. Both molecular activated recombination (MAR) and ion source reduction due to a power limitation effect are shown to be important in reducing the ion target flux during a density ramp. In contrast, the electron–ion recombination (EIR) ion sink is too small to play an important role in reducing the ion target flux. MAR or EIR do not occur during N2 seeding induced detachment as the target temperatures are not sufficiently low. The impact of is shown to be underestimated in present (vibrationally unresolved) SOLPS-ITER simulations, which could result from an underestimated rate. The converged SOLPS-ITER simulations are post-processed with alternative reaction rates, resulting in considerable contributions of to particle and power losses as well as dissociation below the D2 dissociation area. Those findings are in quantitative agreement with the experimental results.

日本語訳

本論文は、TCVトカマクにおける実験結果を示し、プラズマ-分子相互作用(およびおそらくD⁻)が、ダイバータ非接触状態において、エネルギー(水素放射および解離を介して)と粒子(イオン)のシンクとして重要な役割を果たすことを実証する。ただし、これは低いターゲット温度(<3 eV)が達成された場合に限られる。分子活性化再結合(MAR)およびパワー制限効果によるイオン源の低減は、密度ランプ中のイオンターゲットフラックス低減に重要であることが示される。対照的に、電子-イオン再結合(EIR)によるイオンシンクは、イオンターゲットフラックスの低減にはほとんど寄与しない。MARまたはEIRは、N₂入射による非接触状態では発生しない。これは、ターゲット温度が十分に低くないためである。の影響は、現在の(振動状態を分解しない)SOLPS-ITERシミュレーションでは過小評価されていることが示され、これは過小評価されたレートに起因する可能性がある。収束したSOLPS-ITERシミュレーションに代替レートを適用した後処理を行うと、D₂解離領域以下の粒子損失およびパワー損失への寄与が顕著となる。これらの知見は実験結果と定量的に一致する。

装置

iter中精度(概要文一致)

wiki

TCVDivertor detachment
この論文にはまだAI要約がありません。

関連論文

The role of plasma–atom and molecule interactions on power & particle balance during detachment on the MAST Upgrade Super-X divertor

2023Nuclear Fusion

Investigating the impact of the molecular charge-exchange rate on detached SOLPS-ITER simulations

2023Nuclear Fusion

An improved understanding of the roles of atomic processes and power balance in divertor target ion current loss during detachment

2019Nuclear Fusion

One-dimensional simulation and validation of divertor detachment induced through nitrogen seeding on HL-2A

2024Plasma Physics and Controlled Fusion

Self-consistent multi-component simulation of plasma turbulence and neutrals in detached conditions

2024Nuclear Fusion

Effects of strike point location and collisional processes on energy and particle detachment in EAST with lower tungsten divertor

2025Nuclear Fusion

Assessment of the impact of the kinetic effect of ion parallel heat conduction on DEMO-relevant SOL plasma using integrated SOL-divertor code SONIC

2022Plasma Physics and Controlled Fusion

Particle and energy transport simulations of reversed field pinch plasmas

1997Nuclear Fusion

Fast electron transport and ionization in a target irradiated by a high power laser

2006Plasma Physics and Controlled Fusion

Overview of the isotope effects in the ASDEX Upgrade tokamak

2021Plasma Physics and Controlled Fusion