中性粒子穿透 L-2M 恒星器中央等离子体区域的 2D-4D 模拟。使用 ASTRA 代码验证结果

IF 0.9 4区物理与天体物理 Q4 PHYSICS, FLUIDS & PLASMAS Plasma Physics Reports Pub Date : 2024-11-05 DOI:10.1134/S1063780X24601354

A. I. Meshcheryakov, I. A. Grishina, N. V. Kasyanova

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摘要

作者开发的二维代码用于计算中性粒子从室壁穿透到在 L-2M 恒星器中产生和限制的等离子体中心的情况，该代码已得到验证。在工作等离子体密度范围内（1 × 1019 m-3 < ne < 3 × 1019 m-3），与使用 ASTRA 代码进行计算的结果非常一致。对中性粒子从室壁向等离子体中心区域的穿透进行了三维和四维模拟。结果表明，与三维和四维模型相比，二维模拟高估了等离子体中心区域的中性粒子浓度，而三维和四维模型使用的离子速度分布更接近真实情况。

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2D–4D Simulations of Neutral Particles Penetration into Central Plasma Region in the L-2M Stellarator. Verification of Results Using ASTRA Code

The 2D code developed by the authors for calculating the penetration of neutral particles from the chamber wall to the center of the plasma created and confined in the L-2M stellarator has been verified. In the range of operating plasma densities (1 × 10¹⁹ m^–3 < n_e < 3 × 10¹⁹ m^–3), good agreement with the results of calculations performed using the ASTRA code has been obtained. The 3D and 4D simulations of the penetration of neutral particles from the chamber wall to the central plasma region have been performed. It has been shown that the 2D simulations overestimate the concentration of neutral particles in the plasma central region, as compared to the 3D and 4D models, which use ion velocity distributions closer to the real one.

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来源期刊

Plasma Physics Reports 物理-物理：流体与等离子体

CiteScore

1.90

自引率

36.40%

发文量

104

审稿时长

4-8 weeks

期刊介绍： Plasma Physics Reports is a peer reviewed journal devoted to plasma physics. The journal covers the following topics: high-temperature plasma physics related to the problem of controlled nuclear fusion based on magnetic and inertial confinement; physics of cosmic plasma, including magnetosphere plasma, sun and stellar plasma, etc.; gas discharge plasma and plasma generated by laser and particle beams. The journal also publishes papers on such related topics as plasma electronics, generation of radiation in plasma, and plasma diagnostics. As well as other original communications, the journal publishes topical reviews and conference proceedings.