On the secular density rises in NBI-heated H-mode plasmas in NSTX

被引：11

作者：

Soukhanovskii, V. A. ^{[1
,2
]}

Bell, R. E. ^{[1
]}

Bush, C. ^{[3
]}

Kaita, R. ^{[1
]}

Kugel, H. W. ^{[1
]}

LeBlanc, B. P. ^{[1
]}

Maingi, R. ^{[3
]}

Raman, R. ^{[4
]}

Roquemore, A. L. ^{[1
]}

机构：

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

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

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

[4] Univ Washington, Seattle, WA 98195 USA

来源：

JOURNAL OF NUCLEAR MATERIALS | 2009年 / 390-91卷

关键词：

ALCATOR C-MOD; DIII-D; VOLUME RECOMBINATION; PARTICLE-FLUX; DIVERTOR; TRANSPORT; DETACHMENT; PEDESTAL; WALL;

D O I：

10.1016/j.jnucmat.2009.01.067

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Plasma-wall interaction analysis is developed at the National Spherical Torus Experiment. At present, poloidally separated recycling and neutral pressure measurements are used to characterize recycling flux trends. The causes of monotonic density increases observed in initial phases of H-mode discharges at t <= 0.2-0.6 s appear to be the monotonically increasing source in the divertor, and particle containment time tau(p)* long in comparison with discharge duration. The ratio of the wall flux to divertor flux is low throughout the density increase phase except in the initial segment, when dN(e)/dt is highest and magnitudes of the wall and divertor fluxes are similar. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：516 / 519

页数：4

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