Accounting of the power balance for neutral-beam heated H-mode plasmas in NSTX

被引：15

作者：

Paul, SF

Maingi, R

Soukhanovskii, V

Kaye, SM

Kugel, HW

机构：

[1] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA

[2] Oak Ridge Natl Lab, Oak Ridge, TN USA

[3] Lawrence Livermore Natl Lab, Livermore, CA USA

来源：

JOURNAL OF NUCLEAR MATERIALS | 2005年 / 337卷 / 1-3期

关键词：

divertor; edge plasma; power balance; NSTX;

D O I：

10.1016/j.jnucmat.2004.10.153

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Power balance accountability was investigated for neutral beam heated plasmas in NSTX. Measurements of heat to the divertor strike plates and radiation in the divertor and the core were made as a function of heating power in lower single-null (LSN) and double-null (DN) configurations. Up to 70% of the net input power is accounted in the LSN discharges with; approximate to 15-20% of power lost as fast ions, approximate to 25-35% incident on the divertor plates, approximate to 5% radiated in the core, and approximate to 5-10% radiated in the divertor. In DN discharges, the fast ion loss is comparable to LSN discharges, the core radiated power fraction is approximate to 10%, and the power deposited in the lower divertor as radiation and heat flux is approximate to 20-25% of the total. Assuming up/down symmetry, the power accountability in DN is approximate to 85-90%. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：251 / 255

页数：5

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