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Title: Overview of impurity control and wall conditioning in NSTX

Abstract

The National Spherical Torus Experiment (NSTX) started plasma operations in February 1999, and promptly achieved high current, inner wall limited, double null, and single null plasma discharges, initial Coaxial Helicity Injection, and High Harmonic Fast Wave results. NSTX is designed to study the physics of Spherical Tori (ST) in a device that can produce non-inductively sustained high-{beta} discharges in the 1 MA regime and to explore approaches toward a small, economical high power density ST reactor core. As expected, discharge reproducibility and performance were strongly affected by wall conditions. In this paper, the authors describe the internal geometry, and initial plasma discharge, impurity control, wall conditioning, erosion, and deposition results.

Authors:
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Publication Date:
Research Org.:
Sandia National Labs., Albuquerque, NM (US); Sandia National Labs., Livermore, CA (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
756168
Report Number(s):
SAND2000-1329C
TRN: US0003849
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: 14th International Conference on Plasma Surface Interactions in Controlled Fusion Devices, Rosenheim (DE), 05/22/2000--05/27/2000; Other Information: PBD: 25 May 2000
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; NSTX DEVICE; PLASMA IMPURITIES; CONTROL; THERMONUCLEAR REACTOR WALLS; EROSION; DEPOSITION

Citation Formats

KUGEL,H.W., MAINGI,R., BELL,M., BLANCHARD,W., GATES,D., JOHNSON,D., KAITA,R., KAYE,S., MARQUEDA,R., MENARD,J., MUELLER,D., ONO,M., PENG,Y-K.M., RAMAN,R., RAMSEY,A., ROQUEMORE,A., SKINNER,C., SABBAGH,S., STUTMAN,D., WAMPLER,WILLIAM R., WILSON,J.R., and ZWEBEN,S. Overview of impurity control and wall conditioning in NSTX. United States: N. p., 2000. Web.
KUGEL,H.W., MAINGI,R., BELL,M., BLANCHARD,W., GATES,D., JOHNSON,D., KAITA,R., KAYE,S., MARQUEDA,R., MENARD,J., MUELLER,D., ONO,M., PENG,Y-K.M., RAMAN,R., RAMSEY,A., ROQUEMORE,A., SKINNER,C., SABBAGH,S., STUTMAN,D., WAMPLER,WILLIAM R., WILSON,J.R., & ZWEBEN,S. Overview of impurity control and wall conditioning in NSTX. United States.
KUGEL,H.W., MAINGI,R., BELL,M., BLANCHARD,W., GATES,D., JOHNSON,D., KAITA,R., KAYE,S., MARQUEDA,R., MENARD,J., MUELLER,D., ONO,M., PENG,Y-K.M., RAMAN,R., RAMSEY,A., ROQUEMORE,A., SKINNER,C., SABBAGH,S., STUTMAN,D., WAMPLER,WILLIAM R., WILSON,J.R., and ZWEBEN,S. Thu . "Overview of impurity control and wall conditioning in NSTX". United States. https://www.osti.gov/servlets/purl/756168.
@article{osti_756168,
title = {Overview of impurity control and wall conditioning in NSTX},
author = {KUGEL,H.W. and MAINGI,R. and BELL,M. and BLANCHARD,W. and GATES,D. and JOHNSON,D. and KAITA,R. and KAYE,S. and MARQUEDA,R. and MENARD,J. and MUELLER,D. and ONO,M. and PENG,Y-K.M. and RAMAN,R. and RAMSEY,A. and ROQUEMORE,A. and SKINNER,C. and SABBAGH,S. and STUTMAN,D. and WAMPLER,WILLIAM R. and WILSON,J.R. and ZWEBEN,S.},
abstractNote = {The National Spherical Torus Experiment (NSTX) started plasma operations in February 1999, and promptly achieved high current, inner wall limited, double null, and single null plasma discharges, initial Coaxial Helicity Injection, and High Harmonic Fast Wave results. NSTX is designed to study the physics of Spherical Tori (ST) in a device that can produce non-inductively sustained high-{beta} discharges in the 1 MA regime and to explore approaches toward a small, economical high power density ST reactor core. As expected, discharge reproducibility and performance were strongly affected by wall conditions. In this paper, the authors describe the internal geometry, and initial plasma discharge, impurity control, wall conditioning, erosion, and deposition results.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {5}
}

Conference:
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