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

Particle-in-cell simulations of the magnetoacoustic cyclotron instability of fusion-born alpha-particles in tokamak plasmas

J W S Cook, R O Dendy, S C Chapman2013年Plasma Physics and Controlled FusionIF 2.2出版社

Ion cyclotron emission (ICE) is the only collective radiative instability, driven by confined fusion-born alpha-particles, observed from deuterium–tritium (DT) plasmas in both JET and TFTR. Using first principles particle-in-cell simulations of the magnetoacoustic cyclotron instability (MCI), we elucidate some of the fully kinetic nonlinear processes that may underlie observations of ICE from fusion products in these large tokamaks. We find that the MCI is intrinsically self-limiting on very fast timescales, which may help explain the observed correlation between linear theory and observed ICE intensity. The simulations elaborate the nature of the excited electric and magnetic fluctuations, from first principles, confirming the dominant role of fast Alfvénic and electrostatic components which is assumed ab initio in analytical treatments.

日本語訳

イオンサイクロトロン放射(ICE)は、重水素–トリチウム(DT)プラズマからJETとTFTRの両方で観測される、核融合生成アルファ粒子によって駆動される唯一の集団的放射不安定性である。磁気音響サイクロトロン不安定性(MCI)の第一原理粒子インセルシミュレーションを用いて、これらの大型トカマクにおける核融合生成物からのICEの観測の根底にある可能性のある完全運動論的非線形過程の一部を解明する。MCIは本質的に非常に速い時間スケールで自己限定的であり、これが線形理論と観測されたICE強度との間の相関関係の説明に役立つ可能性があることがわかる。シミュレーションは、励起された電場および磁場のゆらぎの性質を第一原理から詳述し、解析的取り扱いにおいて当初から仮定されている高速アルフヴェン成分と静電成分の支配的役割を確認する。

装置

jet中精度(概要文一致)tftr中精度(概要文一致)

wiki

Particle-in-cellCyclotron instability
この論文にはまだAI要約がありません。

関連論文

Ion cyclotron emission from fusion-born ions in large tokamak plasmas: a brief review from JET and TFTR to ITER

2015Plasma Physics and Controlled Fusion

Study of ion cyclotron emission excited by tritium ions of fusion products via magnetoacoustic cyclotron instability theory in the EAST

2025Nuclear Fusion

Simulations of ion cyclotron emission from highly energetic fusion-born protons in aneutronic deuterium-helium-3 plasmas

2025Nuclear Fusion

Ion cyclotron emission from fusion products and beam ions in the Tokamak Fusion Test Reactor

1998Nuclear Fusion

Origin of ion cyclotron emission at the proton cyclotron frequency from the core of deuterium plasmas in the ASDEX-Upgrade tokamak

2020Plasma Physics and Controlled Fusion

The consequences of tritium mix for simulated ion cyclotron emission spectra from deuterium-tritium plasmas

2024Nuclear Fusion

Interpretation of suprathermal emission at deuteron cyclotron harmonics from deuterium plasmas heated by neutral beam injection in the KSTAR tokamak

2019Nuclear Fusion

Doublet splitting of fusion alpha particle driven ion cyclotron emission

2022Plasma Physics and Controlled Fusion

First observation and interpretation of spontaneous collective radiation from fusion-born ions in a stellarator plasma

2022Plasma Physics and Controlled Fusion

Comparing theory and simulation of ion cyclotron emission from energetic ion populations with spherical shell and ring-beam distributions in velocity-space

2020Plasma Physics and Controlled Fusion