Results 31 to 40 of about 1,399,245 (94)

The NSTX Trouble Reporting System [PDF]

, 2002
An online Trouble Reporting System (TRS) has been introduced at the National Spherical Torus Experiment (NSTX). The TRS is used by NSTX operators to report problems that affect NSTX operations.
Oliaro, G., Sengupta, S.
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Flux Consumption Optimization and the Achievement of 1MA Discharge on NSTX [PDF]

, 2000
The spherical tokamak (ST), because of its slender central column, has very limited volt-second capability relative to a standard aspect ratio tokamak of similar plasma cross-section.
Menard, J., Bell, R., LeBlanc, B., Sabbagh, S. A., Bell, M.   +4 more
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The H-mode Pedestal and Edge Localized Modes in NSTX [PDF]

, 2004
The research program of the National Spherical Torus Experiment (NSTX) routinely utilizes the H-mode confinement regime to test and extend beta and pulse length limits.
Roquemore, A. L., Nishino, N., Fredrickson, E. D., Maingi, R., Menard, J. E., Sabbagh, S. A., Tritz, K.   +6 more
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NSTX far infrared tangential interferometer/polarimeter electronics upgrade

, 2010
New electronics for the multichannel far infrared tangential interferometer/polarimeter system employed on the National Spherical Torus Experiment (NSTX) have greatly extended its capability to monitor high frequency density fluctuations.
Tsai, WC, Park, HK, Luhmann, NC, Domier, CW, Lee, KC, Kaita, R, W. C. Tsai, K. C. Lee, C. W. Domier, R. Kaita, H. K. Park, N. C. Luhmann   +11 more
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Tokamak Simulation Code modeling of NSTX [PDF]

, 2000
The Tokamak Simulation Code [TSC] is widely used for the design of new axisymmetric toroidal experiments. In particular, TSC was used extensively in the design of the National Spherical Torus eXperiment [NSTX].
Jardin, S. C., Kaye, S., Glasser, A. H., Menard, J., Kessel, C.   +4 more
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Overview of NSTX Upgrade initial results and modelling highlights [PDF]

, 2017
The National Spherical Torus Experiment (NSTX) has undergone a major upgrade, and the NSTX Upgrade (NSTX-U) Project was completed in the summer of 2015. NSTX-U first plasma was subsequently achieved, diagnostic and control systems have been commissioned,
Domier, C., Taylor, G, Soukhanovskii, V., Goumiri, I., G. Canal, Gray, T, M. Finkenthal, Kaita, R, Stutman, D, Reinke, M., M. Reinke, LaHaye, R.J., Ono, M, A. Diallo, Wang, Z., Schuster, E., W. Heidbrink, Soukhanovskii, V, Berkery, J.W., Perkins, R., Schmitz, O., Podesta, M, Heidbrink, W, R. Kaita, M. Podesta, Stutman, D., Raman, R, D. Brennan, Wirth, B., Zweben, SJ, J. Canik, Fredrickson, E., Myers, CE, Battaglia, D.J., Frerichs, H., M.A. Jaworski, Rhodes, T., B. Wirth, Sechrest, Y., E. Fredrickson, Jarboe, T, Mckee, G, Bedoya, F., Allain, JP, V. Soukhanovskii, Finkenthal, M., Evans, T, L. Delgado-Aparicio, D. Gates, Evans, T., Kriete, DM, Myra, J, Tritz, K, Raman, R., Smith, DR, Ren, Y., Wang, W, Wang, Z, Delgado-Aparicio, L, Battaglia, DJ, Maingi, R., Capece, A, Menard, J.E., R.E. Bell, Diallo, A, Ebrahimi, F., Berkery, JW, Hosea, J., Liu, D, A. Capece, Bedoya, F, F. Bedoya, Kaye, SM, N. Ferraro, J. Myra, Park, J-K, Poli, F, N. Luhmann, Gerhardt, S., Gan, K, Russell, D, T. Rhodes, Myra, J., C. Domier, D. Humphreys, Kubota, S., Sechrest, Y, Jaworski, MA, R. Perkins, Poli, F., G. Taylor, Ren, Y, M.D. Boyer, Y. Ren, Guttenfelder, W, C.E. Myers, F. Ebrahimi, Scotti, F., Stoltzfus-Dueck, T, Jarboe, T., Ono, M., Luhmann Jr., N., R.J. La Haye, Schuster, E, K. Gan, Andre, R, R. Andre, Heidbrink, W., Kubota, S, C.H. Skinner, La Haye, RJ, Rowley, C, B.P. LeBlanc, M. Ono, Delgado-Aparicio, L., Fonck, R, Jardin, S, Stratton, B, Stoltzfus-Dueck, T., Gerhardt, S, Guttenfelder, W., Koel, B, Perkins, R, D.M. Kriete, R. Fonck, S. Gerhardt, Darrow, D., Kolemen, Egemen, Bhattacharjee, A, J.-K. Park, A. Bhattacharjee, R. Maingi, Jaworski, M.A., R. Maqueda, Jardin, S., Bell, R.E., Ferron, J, Meier, E, Fonck, R., Rowley, C., Z. Wang, J. Hosea, S.A. Sabbagh, Sabbagh, SA, Maqueda, R., C. Rowley, Maqueda, R, J.P. Allain, J. Riquezes, Zweben, S.J., Mueller, D., H. Yuh, D. Mueller, F. Poli, Darrow, D, Goumiri, I, Myers, C.E., Buttery, R, Finkenthal, M, Gates, D, E. Schuster, I. Waters, Scotti, F, Allain, J.P., Frerichs, H, E. Kolemen, Smith, D.R., Ahn, J-W, R. Lunsford, Humphreys, D, Canal, G., O. Schmitz, J.-W. Ahn, N. Bertelli, Canik, J., Kolemen, E., S. Ku, Ferrraro, N., Boyer, MD, S.J. Zweben, Stratton, B., C.S. Chang, Menard, JE, Kolemen, E, F. Scotti, Brennan, D., Riquezes, J., H. Frerichs, Bertelli, N, W. Wang, Belova, E., Kaye, S.M., Lunsford, R, Levinton, F., W. Guttenfelder, Chang, C.S., Yuh, H, Crocker, N., Liu, D., B. Koel, Koel, B., D. Liu, B. Stratton, T. Gray, Waters, I., McKee, G., R. Raman, Tritz, K., Ethier, S, Levinton, F, S. Jardin, Park, J.-K., Yuh, H., N. Gorelenkov, Ferron, J., Bell, RE, Russell, D., Riquezes, J, Bertelli, N., Y. Sechrest, Rhodes, T, Capece, A., Andre, R., Ethier, S., R. Barchfeld, Boyle, D., Chang, CS, LeBlanc, BP, Schmitz, O, S. Kubota, Barchfeld, R., Skinner, C.H., Sabbagh, S.A., Humphreys, D., Wirth, B, J.E. Menard, Meier, E., Diallo, A., Podesta, M., D.J. Battaglia, Luhmann, N, Domier, C, Canik, J, Barchfeld, R, Mueller, D, Kriete, D.M., Gates, D., Taylor, G., Ahn, J.-W., Hosea, J, N. Crocker, P. Beiersdorfer, T. Stoltzfus-Dueck, Gorelenkov, N, Ku, S., Ferraro, N, D. Darrow, Beiersdorfer, P, Lunsford, R., Beiersdorfer, P., Waters, I, Ku, S, G. McKee, Bhattacharjee, A., Brennan, D, Buttery, R., R. Buttery, J. Ferron, Boyer, M.D., J.W. Berkery, E. Meier, Belova, E, Crocker, N, E. Belova, Kaita, R., Ebrahimi, F, Fredrickson, E, Maingi, R, D.R. Smith, F. Levinton, T. Jarboe, Gan, K., LeBlanc, B.P., Gray, T., S.M. Kaye, I. Goumiri, D. Russell, Canal, G, T. Evans, Gorelenkov, N., K. Tritz, D. Stutman, Wang, W., Skinner, CH, S. Ethier, Reinke, M   +295 more
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The NSTX fast-ion D-alpha diagnostic [PDF]

, 2008
A new diagnostic, aimed at energy-resolved measurements of the spatial and temporal dynamics of fast ions in NSTX plasmas, is described. It is based on active charge-exchange recombination spectroscopy.
R. E. Bell, Heidbrink, WW, M. Podestà, W. W. Heidbrink, Podestà, M, Feder, R, R. Feder, Bell, RE   +7 more
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Spherical Torus Center Stack Design [PDF]

, 2002
The low aspect ratio spherical torus (ST) configuration requires that the center stack design be optimized within a limited available space, using materials within their established allowables. This paper presents center stack design methods developed by
Heitzenroeder, P., Zatz, I., Neumeyer, C., Kessel, C., Ono, M., Woolley, R., Peng, M., Schmidt, J.   +7 more
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Reduced Model for Direct Induction Startup Scenario Development on MAST-U and NSTX-U

, 2019
A reduced semi-empirical model using time-dependent axisymmetric vacuum field calculations is used to develop the prefill and feed-forward coil current targets required for reliable direct induction (DI) startup on the new MA-class spherical tokamaks ...
Kogan, L, Thornton, A.J., Battaglia, D.J., Menard, J.E., Gerhardt, S.P., Kirk, A.   +5 more
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Physics Results from the National Spherical Torus Experiment [PDF]

, 2004
The National Spherical Torus Experiment (NSTX) produces plasmas with aspect ratio A {triple_bond} R/a = 0.85m/0.68m {approx} 1.25, at plasma currents up to 1.5 MA with vacuum toroidal magnetic field up to 0.6 T on axis.
Team, M.G. Bell for the NSTX Research
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