Characteristics of the first H-mode discharges in the National Spherical Torus Experiment

R. Maingi; M. G. Bell; R. E. Bell; C. E. Bush; E. D. Fredrickson; D. A. Gates; S. M. Kaye; H. W. Kugel; B. P. LeBlanc; J. E. Menard; D. Mueller; S. A. Sabbagh; D. Stutman; G. Taylor; D. W. Johnson R Kaita; R. J. Maqueda; M. Ono; F. Paoletti; S. F. Paul; Y. K.M. Peng; A. L. Roquemore; C. H. Skinner; V. A. Soukhanovskii; E. J. Synakowski

Characteristics of the first H-mode discharges in the National Spherical Torus Experiment

R. Maingi
, M. G. Bell
, R. E. Bell
, C. E. Bush
, E. D. Fredrickson
, D. A. Gates
, S. M. Kaye
, H. W. Kugel
, B. P. LeBlanc
, J. E. Menard
, D. Mueller
, S. A. Sabbagh
, D. Stutman
, G. Taylor
, D. W. Johnson R Kaita
, R. J. Maqueda
, M. Ono
, F. Paoletti
, S. F. Paul
, Y. K.M. Peng

A. L. Roquemore, C. H. Skinner, V. A. Soukhanovskii, E. J. Synakowski

Oak Ridge National Laboratory
Princeton Plasma Physics Laboratory
Columbia University
Los Alamos National Laboratory
Johns Hopkins University

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

H-mode discharges were induced in National Spherical Torus Experiment (NSTX), in which the energy confinement time increased transiently by between 100%-200%. These H modes had energy confinement well above ELM-free H-mode scaling laws, and had a significantly greater threshold power than predicted. Furthermore, it was found that H modes have broader pressure profiles than L modes and broad profiles generally have higher β limits in tokamaks due to improved low-n kink stability.

Original language	English
Article number	035003
Pages (from-to)	035003/1-035003/4
Journal	Physical Review Letters
Volume	88
Issue number	3
State	Published - 21 Jan 2002

Cite this

Maingi, R., Bell, M. G., Bell, R. E., Bush, C. E., Fredrickson, E. D., Gates, D. A., Kaye, S. M., Kugel, H. W., LeBlanc, B. P., Menard, J. E., Mueller, D., Sabbagh, S. A., Stutman, D., Taylor, G., Johnson R Kaita, D. W., Maqueda, R. J., Ono, M., Paoletti, F., Paul, S. F., ... Synakowski, E. J. (2002). Characteristics of the first H-mode discharges in the National Spherical Torus Experiment. Physical Review Letters, 88(3), 035003/1-035003/4. Article 035003.

@article{47b01cb9a09c447eb68cf47c7f9df123,

title = "Characteristics of the first H-mode discharges in the National Spherical Torus Experiment",

abstract = "H-mode discharges were induced in National Spherical Torus Experiment (NSTX), in which the energy confinement time increased transiently by between 100\%-200\%. These H modes had energy confinement well above ELM-free H-mode scaling laws, and had a significantly greater threshold power than predicted. Furthermore, it was found that H modes have broader pressure profiles than L modes and broad profiles generally have higher β limits in tokamaks due to improved low-n kink stability.",

author = "R. Maingi and Bell, \{M. G.\} and Bell, \{R. E.\} and Bush, \{C. E.\} and Fredrickson, \{E. D.\} and Gates, \{D. A.\} and Kaye, \{S. M.\} and Kugel, \{H. W.\} and LeBlanc, \{B. P.\} and Menard, \{J. E.\} and D. Mueller and Sabbagh, \{S. A.\} and D. Stutman and G. Taylor and \{Johnson R Kaita\}, \{D. W.\} and Maqueda, \{R. J.\} and M. Ono and F. Paoletti and Paul, \{S. F.\} and Peng, \{Y. K.M.\} and Roquemore, \{A. L.\} and Skinner, \{C. H.\} and Soukhanovskii, \{V. A.\} and Synakowski, \{E. J.\}",

year = "2002",

month = jan,

day = "21",

language = "English",

volume = "88",

pages = "035003/1--035003/4",

number = "3",

}

Maingi, R, Bell, MG, Bell, RE, Bush, CE, Fredrickson, ED, Gates, DA, Kaye, SM, Kugel, HW, LeBlanc, BP, Menard, JE, Mueller, D, Sabbagh, SA, Stutman, D, Taylor, G, Johnson R Kaita, DW, Maqueda, RJ, Ono, M, Paoletti, F, Paul, SF, Peng, YKM, Roquemore, AL, Skinner, CH, Soukhanovskii, VA & Synakowski, EJ 2002, 'Characteristics of the first H-mode discharges in the National Spherical Torus Experiment', Physical Review Letters, vol. 88, no. 3, 035003, pp. 035003/1-035003/4.

TY - JOUR

T1 - Characteristics of the first H-mode discharges in the National Spherical Torus Experiment

AU - Maingi, R.

AU - Bell, M. G.

AU - Bell, R. E.

AU - Bush, C. E.

AU - Fredrickson, E. D.

AU - Gates, D. A.

AU - Kaye, S. M.

AU - Kugel, H. W.

AU - LeBlanc, B. P.

AU - Menard, J. E.

AU - Mueller, D.

AU - Sabbagh, S. A.

AU - Stutman, D.

AU - Taylor, G.

AU - Johnson R Kaita, D. W.

AU - Maqueda, R. J.

AU - Ono, M.

AU - Paoletti, F.

AU - Paul, S. F.

AU - Peng, Y. K.M.

AU - Roquemore, A. L.

AU - Skinner, C. H.

AU - Soukhanovskii, V. A.

AU - Synakowski, E. J.

PY - 2002/1/21

Y1 - 2002/1/21

N2 - H-mode discharges were induced in National Spherical Torus Experiment (NSTX), in which the energy confinement time increased transiently by between 100%-200%. These H modes had energy confinement well above ELM-free H-mode scaling laws, and had a significantly greater threshold power than predicted. Furthermore, it was found that H modes have broader pressure profiles than L modes and broad profiles generally have higher β limits in tokamaks due to improved low-n kink stability.

AB - H-mode discharges were induced in National Spherical Torus Experiment (NSTX), in which the energy confinement time increased transiently by between 100%-200%. These H modes had energy confinement well above ELM-free H-mode scaling laws, and had a significantly greater threshold power than predicted. Furthermore, it was found that H modes have broader pressure profiles than L modes and broad profiles generally have higher β limits in tokamaks due to improved low-n kink stability.

UR - https://www.scopus.com/pages/publications/45849155591

UR - https://www.scopus.com/pages/publications/45849155591#tab=citedBy

M3 - Article

AN - SCOPUS:45849155591

SN - 0031-9007

VL - 88

SP - 035003/1-035003/4

JO - Physical Review Letters

JF - Physical Review Letters

IS - 3

M1 - 035003

ER -

Characteristics of the first H-mode discharges in the National Spherical Torus Experiment

Abstract

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