Experimental tests of paleoclassical transport

J. D. Callen; J. K. Anderson; T. C. Arlen; G. Bateman; R. V. Budny; T. Fujita; C. M. Greenfield; M. Greenwald; R. J. Groebner; D. N. Hill; G. M.D. Hogeweij; S. M. Kaye; A. H. Kritz; E. A. Lazarus; A. C. Leonard; M. A. Mahdavi; H. S. McLean; T. H. Osborne; A. Y. Pankin; C. C. Petty; J. S. Sarff; H. E. St John; W. M. Stacey; D. Stutman; E. J. Synakowski; K. Tritz

doi:10.1088/0029-5515/47/11/006

Experimental tests of paleoclassical transport

J. D. Callen
, J. K. Anderson
, T. C. Arlen
, G. Bateman
, R. V. Budny
, T. Fujita
, C. M. Greenfield
, M. Greenwald
, R. J. Groebner
, D. N. Hill
, G. M.D. Hogeweij
, S. M. Kaye
, A. H. Kritz
, E. A. Lazarus
, A. C. Leonard
, M. A. Mahdavi
, H. S. McLean
, T. H. Osborne
, A. Y. Pankin
, C. C. Petty

J. S. Sarff, H. E. St John, W. M. Stacey, D. Stutman, E. J. Synakowski, K. Tritz

Department of Physics

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

6 Scopus citations

Abstract

Predictions of the recently developed paleoclassical transport model are compared with data from many toroidal plasma experiments: electron heat diffusivity in DIII-D, C-Mod and NSTX ohmic and near-ohmic plasmas; transport modelling of DIII-D ohmic-level discharges and of the RTP ECH 'stair-step' experiments with electron internal transport barriers (eITBs) at low order rational surfaces; investigation of a strong eITB in JT-60U; H-mode T _e edge pedestal properties in DIII-D; and electron heat diffusivities in non-tokamak experiments (NSTX/ST, MST/RFP, SSPX/spheromak). The radial electron heat transport predicted by the paleoclassical model is found to be in reasonable agreement with a wide variety of ohmic-level experimental results and to set the lower limit (within a factor ≲2 in tokamaks) on the radial electron heat transport in most resistive, current-carrying toroidal plasmas - for where it is expected to be dominant over fluctuation-induced anomalous transport that scales with a gyro-Bohm diffusion coefficient.

Original language	English
Pages (from-to)	1449-1457
Number of pages	9
Journal	Nuclear Fusion
Volume	47
Issue number	11
DOIs	https://doi.org/10.1088/0029-5515/47/11/006
State	Published - 2007

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Callen, J. D., Anderson, J. K., Arlen, T. C., Bateman, G., Budny, R. V., Fujita, T., Greenfield, C. M., Greenwald, M., Groebner, R. J., Hill, D. N., Hogeweij, G. M. D., Kaye, S. M., Kritz, A. H., Lazarus, E. A., Leonard, A. C., Mahdavi, M. A., McLean, H. S., Osborne, T. H., Pankin, A. Y., ... Tritz, K. (2007). Experimental tests of paleoclassical transport. Nuclear Fusion, 47(11), 1449-1457. https://doi.org/10.1088/0029-5515/47/11/006

@article{712869a032014749b95e76bdf423ce0e,

title = "Experimental tests of paleoclassical transport",

abstract = "Predictions of the recently developed paleoclassical transport model are compared with data from many toroidal plasma experiments: electron heat diffusivity in DIII-D, C-Mod and NSTX ohmic and near-ohmic plasmas; transport modelling of DIII-D ohmic-level discharges and of the RTP ECH 'stair-step' experiments with electron internal transport barriers (eITBs) at low order rational surfaces; investigation of a strong eITB in JT-60U; H-mode T e edge pedestal properties in DIII-D; and electron heat diffusivities in non-tokamak experiments (NSTX/ST, MST/RFP, SSPX/spheromak). The radial electron heat transport predicted by the paleoclassical model is found to be in reasonable agreement with a wide variety of ohmic-level experimental results and to set the lower limit (within a factor ≲2 in tokamaks) on the radial electron heat transport in most resistive, current-carrying toroidal plasmas - for where it is expected to be dominant over fluctuation-induced anomalous transport that scales with a gyro-Bohm diffusion coefficient.",

author = "Callen, \{J. D.\} and Anderson, \{J. K.\} and Arlen, \{T. C.\} and G. Bateman and Budny, \{R. V.\} and T. Fujita and Greenfield, \{C. M.\} and M. Greenwald and Groebner, \{R. J.\} and Hill, \{D. N.\} and Hogeweij, \{G. M.D.\} and Kaye, \{S. M.\} and Kritz, \{A. H.\} and Lazarus, \{E. A.\} and Leonard, \{A. C.\} and Mahdavi, \{M. A.\} and McLean, \{H. S.\} and Osborne, \{T. H.\} and Pankin, \{A. Y.\} and Petty, \{C. C.\} and Sarff, \{J. S.\} and \{St John\}, \{H. E.\} and Stacey, \{W. M.\} and D. Stutman and Synakowski, \{E. J.\} and K. Tritz",

year = "2007",

doi = "10.1088/0029-5515/47/11/006",

language = "English",

volume = "47",

pages = "1449--1457",

number = "11",

}

Callen, JD, Anderson, JK, Arlen, TC, Bateman, G, Budny, RV, Fujita, T, Greenfield, CM, Greenwald, M, Groebner, RJ, Hill, DN, Hogeweij, GMD, Kaye, SM, Kritz, AH, Lazarus, EA, Leonard, AC, Mahdavi, MA, McLean, HS, Osborne, TH, Pankin, AY, Petty, CC, Sarff, JS, St John, HE, Stacey, WM, Stutman, D, Synakowski, EJ & Tritz, K 2007, 'Experimental tests of paleoclassical transport', Nuclear Fusion, vol. 47, no. 11, pp. 1449-1457. https://doi.org/10.1088/0029-5515/47/11/006

TY - JOUR

T1 - Experimental tests of paleoclassical transport

AU - Callen, J. D.

AU - Anderson, J. K.

AU - Arlen, T. C.

AU - Bateman, G.

AU - Budny, R. V.

AU - Fujita, T.

AU - Greenfield, C. M.

AU - Greenwald, M.

AU - Groebner, R. J.

AU - Hill, D. N.

AU - Hogeweij, G. M.D.

AU - Kaye, S. M.

AU - Kritz, A. H.

AU - Lazarus, E. A.

AU - Leonard, A. C.

AU - Mahdavi, M. A.

AU - McLean, H. S.

AU - Osborne, T. H.

AU - Pankin, A. Y.

AU - Petty, C. C.

AU - Sarff, J. S.

AU - St John, H. E.

AU - Stacey, W. M.

AU - Stutman, D.

AU - Synakowski, E. J.

AU - Tritz, K.

PY - 2007

Y1 - 2007

N2 - Predictions of the recently developed paleoclassical transport model are compared with data from many toroidal plasma experiments: electron heat diffusivity in DIII-D, C-Mod and NSTX ohmic and near-ohmic plasmas; transport modelling of DIII-D ohmic-level discharges and of the RTP ECH 'stair-step' experiments with electron internal transport barriers (eITBs) at low order rational surfaces; investigation of a strong eITB in JT-60U; H-mode T e edge pedestal properties in DIII-D; and electron heat diffusivities in non-tokamak experiments (NSTX/ST, MST/RFP, SSPX/spheromak). The radial electron heat transport predicted by the paleoclassical model is found to be in reasonable agreement with a wide variety of ohmic-level experimental results and to set the lower limit (within a factor ≲2 in tokamaks) on the radial electron heat transport in most resistive, current-carrying toroidal plasmas - for where it is expected to be dominant over fluctuation-induced anomalous transport that scales with a gyro-Bohm diffusion coefficient.

AB - Predictions of the recently developed paleoclassical transport model are compared with data from many toroidal plasma experiments: electron heat diffusivity in DIII-D, C-Mod and NSTX ohmic and near-ohmic plasmas; transport modelling of DIII-D ohmic-level discharges and of the RTP ECH 'stair-step' experiments with electron internal transport barriers (eITBs) at low order rational surfaces; investigation of a strong eITB in JT-60U; H-mode T e edge pedestal properties in DIII-D; and electron heat diffusivities in non-tokamak experiments (NSTX/ST, MST/RFP, SSPX/spheromak). The radial electron heat transport predicted by the paleoclassical model is found to be in reasonable agreement with a wide variety of ohmic-level experimental results and to set the lower limit (within a factor ≲2 in tokamaks) on the radial electron heat transport in most resistive, current-carrying toroidal plasmas - for where it is expected to be dominant over fluctuation-induced anomalous transport that scales with a gyro-Bohm diffusion coefficient.

UR - https://www.scopus.com/pages/publications/38749118260

UR - https://www.scopus.com/pages/publications/38749118260#tab=citedBy

U2 - 10.1088/0029-5515/47/11/006

DO - 10.1088/0029-5515/47/11/006

M3 - Article

AN - SCOPUS:38749118260

SN - 0029-5515

VL - 47

SP - 1449

EP - 1457

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 11

ER -

Experimental tests of paleoclassical transport

Abstract

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