Results 21 to 30 of about 1,399,245 (94)

Overview of impurity control and wall conditioning in NSTX [PDF]

, 2000
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 ...
Mueller, D. W., Zweben, S., Peng, Y-K. M., Mueller, D., Menard, J., Barry, R. E., Paul, S., Skinner, C., Raman, R., Kaita, R., Skinner, C. H., Johnson, D., Marqueda, R., Wampler, W., Wampler, William R., Kaye, S., Gates, D., Maingi, R., Kugel, H. W., Bell, M., Wilson, J. R., Stratton, B., Sabbagh, S., Ramsey, A., Menon, M. M., Stutman, D., Ono, M., National Spherical Torus Experiment (Project), Roquemore, A., Blanchard, W., Maqueda, R.   +30 more
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Conceptual design for the NSTX Central Instrumentation and Control System [PDF]

, 1997
The design and construction phase for the National Spherical Torus Experiment (NSTX) is under way at the Princeton Plasma Physics Laboratory (PPPL). Operation is scheduled to begin on April 30, 1999.
Sichta, P., Oliaro, G., Roney, P., Tindall, K., Bashore, D.   +4 more
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Diagnostic Development on NSTX

, 2020
-Diagnostics are described which are currently installed or under active development for the newly commissioned NSTX device. The low aspect ratio (R/a£1.3) and low toroidal field (0.1-0.3T) used in this device dictate adaptations in many standard ...
Nstx Team, A L Roquemore, R Kaita, D Johnson   +3 more
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Comparison of small ELM characteristics and regimes in Alcator C-Mod, MAST and NSTX

, 2011
We report on the status of a set of ITPA-coordinated experiments between the Alcator C-Mod, MAST and NSTX devices to compare the characteristics and access conditions of discharges with small edge-localized modes (ELMs). The small ELMs in C-Mod, MAST and
A. Kirk, A.E. Hubbard, J.L. Terry, R. Maingi, J.W. Hughes, R. Maqueda, H. Meyer   +6 more
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PRINCETON PLASMA PHYSICS LABORATORY PRINCETON UNIVERSITY, PRINCETON, NEW JERSEY PPPL-3822 PPPL-3822 UC-70 Diagnostic Development for ST Plasmas on NSTX Availability Diagnostic Development for ST Plasmas on NSTX*

, 2020
Spherical tokamaks (STs) have much lower aspect ratio (a/R) and lower toroidal magnetic field, relative to tokamaks and stellarators. This paper will highlight some of the challenges and opportunities these features pose in the diagnosis of ST plasmas on
Nstx Team, D Johnson
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Beam Ion Driven Instabilities in NSTX [PDF]

, 2003
A low-field, low-aspect-ratio device such as NSTX (National Spherical Torus Experiment) is an excellent testbed to study the ITER-relevant physics of fast-particle confinement that is of major importance for burning plasmas.
Kramer, G., Kaye, S., Belova, E., Cheng, C. Z., Fredrickson, E., Heidbrink, W., Berk, H. L., Gorelenkov, N. N.   +7 more
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Snowflake divertor configuration studies for NSTX-Upgrade [PDF]

, 2011
Snowflake divertor experiments in NSTX provide basis for PMI development toward NSTX-Upgrade. Snowflake configuration formation was followed by radiative detachment. Significant reduction of steady-state divertor heat flux observed in snowflake divertor.
Soukhanovskii, V A
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Edge Recycling and Heat Fluxes in L- and H-mode NSTX Plasmas [PDF]

, 2003
Introduction Edge characterization experiments have been conducted in NSTX to provide an initial survey of the edge particle and heat fluxes and their scaling with input power and electron density.
Roquemore, A. L., Maingi, R., Raman, R., LeBlanc, B., Lasnier, C. J., Kugel, H., Soukhanovskii, V. A., Team, the NSTX Research   +7 more
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NSTX/NSTX-U theory, modeling and analysis results

, 2019
The mission of the spherical tokamak NSTX-U is to explore the physics that drives core and pedestal transport and stability at high-β and low collisionality, as part of the development of the spherical tokamak (ST) concept towards a compact, low-cost ST ...
Kaye, SM, Taylor, G, Baver, D, Rhodes, T, Park, J-K, Duarte, VN, Poli, F, Darrow, D, Gray, T, Kaita, R, Schmitz, O, Gan, K, Russell, D, Scotti, F, Wirth, B, Krebs, I, Frerichs, H, Ono, M, Luhmann, N, Domier, C, Leblanc, BP, Canik, J, Barchfeld, R, Jaworski, MA, Sechrest, Y, Soukhanovskii, V, Mueller, D, Morton, LA, Ren, Y, Boyer, MD, Guttenfelder, W, Hao, GZ, Pfefferle, D, Podesta, M, La Haye, R, Schneller, M, Heidbrink, W, Kim, D, Raman, R, Gorelenkov, N, Zweben, SJ, Myers, CE, Ferraro, N, Menard, JE, Waters, I, Schuster, E, Bertelli, N, Brennan, D, Jarboe, T, Ahn, JW, Kubota, S, Lunsford, R, Fonck, R, Jardin, S, Lestz, J, Allain, JP, Belova, E, Crocker, N, Evans, T, Stratton, B, Kriete, DM, Myra, J, Tritz, K, Ebrahimi, F, Smith, DR, Gerhardt, S, Perkins, R, Wang, W, Fredrickson, E, Delgado-Aparicio, L, Wang, Z, Kolemen, Egemen, Maingi, R, Battaglia, DJ, Bhattacharjee, A, Diallo, A, Canal, G, Levinton, F, Berkery, JW, Koel, Bruce, Liu, D, Bedoya, F, Izacard, O, Stotzfus-Dueck, T, Sabbagh, SA, Skinner, CH, Rowley, Clarence, Bell, RE, Maqueda, R, Riquezes, J, Reinke, M   +90 more
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Be Foil "Filter Knee Imaging" NSTX Plasma with Fast Soft X-ray Camera [PDF]

, 2005
A fast soft x-ray (SXR) pinhole camera has been implemented on the National Spherical Torus Experiment (NSTX). This paper presents observations and describes the Be foil Filter Knee Imaging (FKI) technique for reconstructions of a m/n=1/1 mode on NSTX ...
Goeler, S. Von., Stutman, D., Stratton, B. C., Zakharov, L.E., Tritz, K.   +4 more
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