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

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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
Externally published	Yes

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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{d4808bb664364da28ffe5165d535e402,

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",

journal = "Nuclear Fusion",

issn = "0029-5515",

publisher = "IOP Publishing",

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 - http://www.scopus.com/inward/record.url?scp=38749118260&partnerID=8YFLogxK

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

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