Transport studies in high-performance field reversed configuration plasmas

被引：11

作者：

Gupta, S. ^{[1
]}

Barnes, D. C. ^{[1
]}

Dettrick, S. A. ^{[1
]}

Trask, E. ^{[1
]}

Tuszewski, M. ^{[1
]}

Deng, B. H. ^{[1
]}

Gota, H. ^{[1
]}

Gupta, D. ^{[1
]}

Hubbard, K. ^{[1
]}

Korepanov, S. ^{[1
]}

Thompson, M. C. ^{[1
]}

Zhai, K. ^{[1
]}

Tajima, T. ^{[1
]}

机构：

[1] Tri Alpha Energy Inc, POB 7010, Rancho Santa Margarita, CA 92688 USA

来源：

PHYSICS OF PLASMAS | 2016年 / 23卷 / 05期

关键词：

NEUTRAL BEAM INJECTION; SIMULATION; CONFINEMENT; MODEL;

D O I：

10.1063/1.4950835

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

A significant improvement of field reversed configuration (FRC) lifetime and plasma confinement times in the C-2 plasma, called High Performance FRC regime, has been observed with neutral beam injection (NBI), improved edge stability, and better wall conditioning [Binderbauer et al., Phys. Plasmas 22, 056110 (2015)]. A Quasi-1D (Q1D) fluid transport code has been developed and employed to carry out transport analysis of such C-2 plasma conditions. The Q1D code is coupled to a Monte-Carlo code to incorporate the effect of fast ions, due to NBI, on the background FRC plasma. Numerically, the Q1D transport behavior with enhanced transport coefficients (but with otherwise classical parametric dependencies) such as 5 times classical resistive diffusion, classical thermal ion conductivity, 20 times classical electron thermal conductivity, and classical fast ion behavior fit with the experimentally measured time evolution of the excluded flux radius, line-integrated density, and electron/ion temperature. The numerical study shows near sustainment of poloidal flux for nearly 1 ms in the presence of NBI. Published by AIP Publishing.

引用

页数：9

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