The effect of lithium surface coatings on plasma performance in the National Spherical Torus Experiment

被引：146

作者：

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

Bell, M. G. ^{[1
]}

Ahn, J. -W. ^{[2
]}

Allain, J. P. ^{[3
]}

Bell, R. ^{[1
]}

Boedo, J. ^{[2
]}

Bush, C. ^{[4
]}

Gates, D. ^{[1
]}

Gray, T. ^{[1
]}

Kaye, S. ^{[1
]}

Kaita, R. ^{[1
]}

LeBlanc, B. ^{[1
]}

Maingi, R. ^{[4
]}

Majeski, R. ^{[1
]}

Mansfield, D. ^{[1
]}

Menard, J. ^{[1
]}

Mueller, D. ^{[1
]}

Ono, M. ^{[1
]}

Paul, S. ^{[1
]}

Raman, R. ^{[5
]}

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

Ross, P. W. ^{[1
]}

Sabbagh, S. ^{[6
]}

Schneider, H. ^{[1
]}

Skinner, C. H. ^{[1
]}

Soukhanovskii, V. ^{[7
]}

Stevenson, T. ^{[1
]}

Timberlake, J. ^{[1
]}

Wampler, W. R. ^{[8
]}

Zakharov, L. ^{[1
]}

机构：

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

[2] Univ Calif San Diego, La Jolla, CA 92093 USA

[3] Purdue Univ, Sch Nucl Engn, W Lafayette, IN 47907 USA

[4] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

[5] Univ Washington, Seattle, WA 98195 USA

[6] Columbia Univ, New York, NY 10027 USA

[7] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA

[8] Sandia Natl Labs, Albuquerque, NM 87185 USA

来源：

PHYSICS OF PLASMAS | 2008年 / 15卷 / 05期

关键词：

D O I：

10.1063/1.2906260

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：

National Spherical Torus Experiment [which M. Ono , Nucl. Fusion 40, 557 (2000)] high-power divertor plasma experiments have shown, for the first time, that benefits from lithium coatings applied to plasma facing components found previously in limited plasmas can occur also in high-power diverted configurations. Lithium coatings were applied with pellets injected into helium discharges, and also with an oven that directed a collimated stream of lithium vapor toward the graphite tiles of the lower center stack and divertor. Lithium oven depositions from a few milligrams to 1 g have been applied between discharges. Benefits from the lithium coatings were sometimes, but not always, seen. These benefits sometimes included decreases in plasma density, inductive flux consumption, and edge-localized mode occurrence, and increases in electron temperature, ion temperature, energy confinement, and periods of edge and magnetohydrodynamic quiescence. In addition, reductions in lower divertor D, C, and O luminosity were measured. (C) 2008 American Institute of Physics.

引用

页数：13

共 13 条

[1] Deuterium retention in liquid lithium [J].

Baldwin, MJ ;

Doerner, RP ;

Luckhardt, SC ;

Conn, RW .

NUCLEAR FUSION, 2002, 42 (11) :1318-1323

[2] New capabilities and results for the National Spherical Torus Experiment [J].

Bell, M. G. ;

Bell, R. E. ;

Gates, D. A. ;

Kaye, S. M. ;

Kugel, H. ;

LeBlanc, B. P. ;

Levinton, F. M. ;

Maingi, R. ;

Menard, J. E. ;

Raman, R. ;

Sabbagh, S. A. ;

Stutman, D. .

NUCLEAR FUSION, 2006, 46 (08) :S565-S572

[3] PSI modeling of liquid lithium divertors for the NSTX tokamak [J].

Brooks, JN ;

Allain, JP ;

Rognlien, TD ;

Maingi, R .

JOURNAL OF NUCLEAR MATERIALS, 2005, 337 (1-3) :1053-1057

[4]

GETTELFINGER G, 2003, P 200 IEEE NPSS S FU, V359

[5]

Hawryluk R. J., 1980, PHYSICS PLASMAS CLOS, V1, P19

[6] Helium ash removal by moving-surface plasma-facing components [J].

Hirooka, Y. ;

Hosaka, S. ;

Nishiura, M. ;

Ohtsuka, Y. ;

Nishikawa, M. .

JOURNAL OF NUCLEAR MATERIALS, 2007, 363 (1-3) :775-780

[7] Rapid diffusion of lithium into bulk graphite in lithium conditioning [J].

Itou, N ;

Toyoda, H ;

Morita, K ;

Sugai, H .

JOURNAL OF NUCLEAR MATERIALS, 2001, 290 (290-293) :281-285

[8] Effect of lithium PFC coatings on NSTX density control [J].

Kugel, H. W. ;

Bell, M. G. ;

Bell, R. ;

Bush, C. ;

Gates, D. ;

Gray, T. ;

Kaita, R. ;

Leblanc, B. ;

Maingi, R. ;

Majeski, R. ;

Mansfield, D. ;

Mueller, D. ;

Paul, S. ;

Raman, R. ;

Roquemore, A. L. ;

Sabbagh, S. ;

Skinner, C. H. ;

Soukhanovskii, V. ;

Stevenson, T. ;

Zakharov, L. .

JOURNAL OF NUCLEAR MATERIALS, 2007, 363 (791-796) :791-796

[9] Development of NSTX particle control techniques [J].

Kugel, HW ;

Maingi, R ;

Bell, M ;

Gates, D ;

Hill, K ;

LeBlanc, B ;

Mueller, D ;

Kaita, R ;

Paul, S ;

Sabbagh, S ;

Skinner, CH ;

Soukhanovskii, V ;

Stratton, B ;

Raman, R .

JOURNAL OF NUCLEAR MATERIALS, 2005, 337 (1-3) :495-499

[10] Recent liquid lithium limiter experiments in CDX-U [J].

Majeski, R ;

Jardin, S ;

Kaita, R ;

Gray, T ;

Marfuta, P ;

Spaleta, J ;

Timberlake, J ;

Zakharov, L ;

Antar, G ;

Doerner, R ;

Luckhardt, S ;

Seraydarian, R ;

Soukhanovskii, V ;

Maingi, R ;

Finkenthal, M ;

Stutman, D ;

Rodgers, D ;

Angelini, S .

NUCLEAR FUSION, 2005, 45 (06) :519-523

← 1 2 →