Higher fusion power gain with current and pressure profile control in strongly shaped DIII-D tokamak plasmas

E. A. Lazarus; G. A. Navratil; C. M. Greenfield; E. J. Strait; M. E. Austin; K. H. Burrell; T. A. Casper; D. R. Baker; J. C. DeBoo; E. J. Doyle; R. Durst; J. R. Ferron; C. B. Forest; P. Gohil; R. J. Groebner; W. W. Heidbrink; R. M. Hong; W. A. Houlberg; A. W. Howald; C. L. Hsieh; A. W. Hyatt; G. L. Jackson; J. Kim; L. L. Lao; C. J. Lasnier; A. W. Leonard; J. Lohr; R. J. La Haye; R. Maingi; R. L. Miller; M. Murakami; T. H. Osborne; L. J. Perkins; C. C. Petty; C. L. Rettig; T. L. Rhodes; B. W. Rice; S. A. Sabbagh; D. P. Schissel; J. T. Scoville; R. T. Snider; G. M. Staebler; B. W. Stallard; R. D. Stambaugh; H. E. St. John; R. E. Stockdale; P. L. Taylor; D. M. Thomas; A. D. Turnbull; M. R. Wade; R. Wood; D. Whyte

doi:10.1103/PhysRevLett.77.2714

Higher fusion power gain with current and pressure profile control in strongly shaped DIII-D tokamak plasmas

E. A. Lazarus, G. A. Navratil, C. M. Greenfield, E. J. Strait, M. E. Austin, K. H. Burrell, T. A. Casper, D. R. Baker, J. C. DeBoo, E. J. Doyle, R. Durst, J. R. Ferron, C. B. Forest, P. Gohil, R. J. Groebner, W. W. Heidbrink, R. M. Hong, W. A. Houlberg, A. W. Howald, C. L. HsiehA. W. Hyatt, G. L. Jackson, J. Kim, L. L. Lao, C. J. Lasnier, A. W. Leonard, J. Lohr, R. J. La Haye, R. Maingi, R. L. Miller, M. Murakami, T. H. Osborne, L. J. Perkins, C. C. Petty, C. L. Rettig, T. L. Rhodes, B. W. Rice, S. A. Sabbagh, D. P. Schissel, J. T. Scoville, R. T. Snider, G. M. Staebler, B. W. Stallard, R. D. Stambaugh, H. E. St. John, R. E. Stockdale, P. L. Taylor, D. M. Thomas, A. D. Turnbull, M. R. Wade, R. Wood, D. Whyte

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Abstract

Fusion power has been increased by a factor of 3 in DIII-D by tailoring the pressure profile to avoid the kink instability in H-mode plasmas. The resulting plasmas are found to have neoclassical ion confinement. This reduction in transport losses in beam-heated plasmas with negative central shear is correlated with a dramatic reduction in density fluctuations. Improved magnetohydrodynamic stability is achieved by controlling the plasma pressure profile width. In deuterium plasmas the highest gain Q (the ratio of fusion power to input power), was 0.0015, corresponding to an equivalent Q of 0.32 in a deuterium-tritium plasma.

Original language	English (US)
Pages (from-to)	2714-2717
Number of pages	4
Journal	Physical review letters
Volume	77
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevLett.77.2714
State	Published - 1996
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.77.2714

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Lazarus, E. A., Navratil, G. A., Greenfield, C. M., Strait, E. J., Austin, M. E., Burrell, K. H., Casper, T. A., Baker, D. R., DeBoo, J. C., Doyle, E. J., Durst, R., Ferron, J. R., Forest, C. B., Gohil, P., Groebner, R. J., Heidbrink, W. W., Hong, R. M., Houlberg, W. A., Howald, A. W., ... Whyte, D. (1996). Higher fusion power gain with current and pressure profile control in strongly shaped DIII-D tokamak plasmas. Physical review letters, 77(13), 2714-2717. https://doi.org/10.1103/PhysRevLett.77.2714

@article{e3e06cb622e5486aacdf39b7fac4c435,

title = "Higher fusion power gain with current and pressure profile control in strongly shaped DIII-D tokamak plasmas",

abstract = "Fusion power has been increased by a factor of 3 in DIII-D by tailoring the pressure profile to avoid the kink instability in H-mode plasmas. The resulting plasmas are found to have neoclassical ion confinement. This reduction in transport losses in beam-heated plasmas with negative central shear is correlated with a dramatic reduction in density fluctuations. Improved magnetohydrodynamic stability is achieved by controlling the plasma pressure profile width. In deuterium plasmas the highest gain Q (the ratio of fusion power to input power), was 0.0015, corresponding to an equivalent Q of 0.32 in a deuterium-tritium plasma.",

author = "Lazarus, \{E. A.\} and Navratil, \{G. A.\} and Greenfield, \{C. M.\} and Strait, \{E. J.\} and Austin, \{M. E.\} and Burrell, \{K. H.\} and Casper, \{T. A.\} and Baker, \{D. R.\} and DeBoo, \{J. C.\} and Doyle, \{E. J.\} and R. Durst and Ferron, \{J. R.\} and Forest, \{C. B.\} and P. Gohil and Groebner, \{R. J.\} and Heidbrink, \{W. W.\} and Hong, \{R. M.\} and Houlberg, \{W. A.\} and Howald, \{A. W.\} and Hsieh, \{C. L.\} and Hyatt, \{A. W.\} and Jackson, \{G. L.\} and J. Kim and Lao, \{L. L.\} and Lasnier, \{C. J.\} and Leonard, \{A. W.\} and J. Lohr and \{La Haye\}, \{R. J.\} and R. Maingi and Miller, \{R. L.\} and M. Murakami and Osborne, \{T. H.\} and Perkins, \{L. J.\} and Petty, \{C. C.\} and Rettig, \{C. L.\} and Rhodes, \{T. L.\} and Rice, \{B. W.\} and Sabbagh, \{S. A.\} and Schissel, \{D. P.\} and Scoville, \{J. T.\} and Snider, \{R. T.\} and Staebler, \{G. M.\} and Stallard, \{B. W.\} and Stambaugh, \{R. D.\} and \{St. John\}, \{H. E.\} and Stockdale, \{R. E.\} and Taylor, \{P. L.\} and Thomas, \{D. M.\} and Turnbull, \{A. D.\} and Wade, \{M. R.\} and R. Wood and D. Whyte",

year = "1996",

doi = "10.1103/PhysRevLett.77.2714",

language = "English (US)",

volume = "77",

pages = "2714--2717",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "13",

}

Lazarus, EA, Navratil, GA, Greenfield, CM, Strait, EJ, Austin, ME, Burrell, KH, Casper, TA, Baker, DR, DeBoo, JC, Doyle, EJ, Durst, R, Ferron, JR, Forest, CB, Gohil, P, Groebner, RJ, Heidbrink, WW, Hong, RM, Houlberg, WA, Howald, AW, Hsieh, CL, Hyatt, AW, Jackson, GL, Kim, J, Lao, LL, Lasnier, CJ, Leonard, AW, Lohr, J, La Haye, RJ, Maingi, R, Miller, RL, Murakami, M, Osborne, TH, Perkins, LJ, Petty, CC, Rettig, CL, Rhodes, TL, Rice, BW, Sabbagh, SA, Schissel, DP, Scoville, JT, Snider, RT, Staebler, GM, Stallard, BW, Stambaugh, RD, St. John, HE, Stockdale, RE, Taylor, PL, Thomas, DM, Turnbull, AD, Wade, MR, Wood, R & Whyte, D 1996, 'Higher fusion power gain with current and pressure profile control in strongly shaped DIII-D tokamak plasmas', Physical review letters, vol. 77, no. 13, pp. 2714-2717. https://doi.org/10.1103/PhysRevLett.77.2714

TY - JOUR

T1 - Higher fusion power gain with current and pressure profile control in strongly shaped DIII-D tokamak plasmas

AU - Lazarus, E. A.

AU - Navratil, G. A.

AU - Greenfield, C. M.

AU - Strait, E. J.

AU - Austin, M. E.

AU - Burrell, K. H.

AU - Casper, T. A.

AU - Baker, D. R.

AU - DeBoo, J. C.

AU - Doyle, E. J.

AU - Durst, R.

AU - Ferron, J. R.

AU - Forest, C. B.

AU - Gohil, P.

AU - Groebner, R. J.

AU - Heidbrink, W. W.

AU - Hong, R. M.

AU - Houlberg, W. A.

AU - Howald, A. W.

AU - Hsieh, C. L.

AU - Hyatt, A. W.

AU - Jackson, G. L.

AU - Kim, J.

AU - Lao, L. L.

AU - Lasnier, C. J.

AU - Leonard, A. W.

AU - Lohr, J.

AU - La Haye, R. J.

AU - Maingi, R.

AU - Miller, R. L.

AU - Murakami, M.

AU - Osborne, T. H.

AU - Perkins, L. J.

AU - Petty, C. C.

AU - Rettig, C. L.

AU - Rhodes, T. L.

AU - Rice, B. W.

AU - Sabbagh, S. A.

AU - Schissel, D. P.

AU - Scoville, J. T.

AU - Snider, R. T.

AU - Staebler, G. M.

AU - Stallard, B. W.

AU - Stambaugh, R. D.

AU - St. John, H. E.

AU - Stockdale, R. E.

AU - Taylor, P. L.

AU - Thomas, D. M.

AU - Turnbull, A. D.

AU - Wade, M. R.

AU - Wood, R.

AU - Whyte, D.

PY - 1996

Y1 - 1996

N2 - Fusion power has been increased by a factor of 3 in DIII-D by tailoring the pressure profile to avoid the kink instability in H-mode plasmas. The resulting plasmas are found to have neoclassical ion confinement. This reduction in transport losses in beam-heated plasmas with negative central shear is correlated with a dramatic reduction in density fluctuations. Improved magnetohydrodynamic stability is achieved by controlling the plasma pressure profile width. In deuterium plasmas the highest gain Q (the ratio of fusion power to input power), was 0.0015, corresponding to an equivalent Q of 0.32 in a deuterium-tritium plasma.

AB - Fusion power has been increased by a factor of 3 in DIII-D by tailoring the pressure profile to avoid the kink instability in H-mode plasmas. The resulting plasmas are found to have neoclassical ion confinement. This reduction in transport losses in beam-heated plasmas with negative central shear is correlated with a dramatic reduction in density fluctuations. Improved magnetohydrodynamic stability is achieved by controlling the plasma pressure profile width. In deuterium plasmas the highest gain Q (the ratio of fusion power to input power), was 0.0015, corresponding to an equivalent Q of 0.32 in a deuterium-tritium plasma.

UR - https://www.scopus.com/pages/publications/6144263456

UR - https://www.scopus.com/inward/citedby.url?scp=6144263456&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.77.2714

DO - 10.1103/PhysRevLett.77.2714

M3 - Article

C2 - 10062027

AN - SCOPUS:6144263456

SN - 0031-9007

VL - 77

SP - 2714

EP - 2717

JO - Physical review letters

JF - Physical review letters

IS - 13

ER -

Higher fusion power gain with current and pressure profile control in strongly shaped DIII-D tokamak plasmas

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