Observation of temperature-dependent transport in the TFTR tokamak

P. C. Efthimion; D. K. Mansfield; B. C. Stratton; E. Synakowski; Amitava Bhattacharjee; H. Biglari; P. H. Diamond; Robert James Goldston; C. C. Hegna; D. McCune; G. Rewoldt; S. Scott; W. M. Tang; G. Taylor; R. E. Waltz; R. M. Wieland; M. C. Zarnstorff

doi:10.1103/PhysRevLett.66.421

Observation of temperature-dependent transport in the TFTR tokamak

P. C. Efthimion, D. K. Mansfield, B. C. Stratton, E. Synakowski, Amitava Bhattacharjee, H. Biglari, P. H. Diamond, Robert James Goldston, C. C. Hegna, D. McCune, G. Rewoldt, S. Scott, W. M. Tang, G. Taylor, R. E. Waltz, R. M. Wieland, M. C. Zarnstorff

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Abstract

Local particle and heat transport coefficients have been measured in a temperature scan of neutral-beamheated plasmas with n, Ip, and Bcphi held constant. The electron transport is ascertained from a flux analysis of a small density perturbation, and the heat transport is obtained from the equilibrium power balance. The transport coefficients vary as Te, where =1.52.5. The observed temperature dependence is predicted by numerical calculations of anomalous transport due to trapped-particle drift-type microinstabilities.

Original language	English (US)
Pages (from-to)	421-424
Number of pages	4
Journal	Physical review letters
Volume	66
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevLett.66.421
State	Published - 1991

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.66.421

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Efthimion, P. C., Mansfield, D. K., Stratton, B. C., Synakowski, E., Bhattacharjee, A., Biglari, H., Diamond, P. H., Goldston, R. J., Hegna, C. C., McCune, D., Rewoldt, G., Scott, S., Tang, W. M., Taylor, G., Waltz, R. E., Wieland, R. M., & Zarnstorff, M. C. (1991). Observation of temperature-dependent transport in the TFTR tokamak. Physical review letters, 66(4), 421-424. https://doi.org/10.1103/PhysRevLett.66.421

@article{682d98bce36a4b749adb410a7eb53447,

title = "Observation of temperature-dependent transport in the TFTR tokamak",

abstract = "Local particle and heat transport coefficients have been measured in a temperature scan of neutral-beamheated plasmas with n, Ip, and Bcphi held constant. The electron transport is ascertained from a flux analysis of a small density perturbation, and the heat transport is obtained from the equilibrium power balance. The transport coefficients vary as Te, where =1.52.5. The observed temperature dependence is predicted by numerical calculations of anomalous transport due to trapped-particle drift-type microinstabilities.",

author = "Efthimion, {P. C.} and Mansfield, {D. K.} and Stratton, {B. C.} and E. Synakowski and Amitava Bhattacharjee and H. Biglari and Diamond, {P. H.} and Goldston, {Robert James} and Hegna, {C. C.} and D. McCune and G. Rewoldt and S. Scott and Tang, {W. M.} and G. Taylor and Waltz, {R. E.} and Wieland, {R. M.} and Zarnstorff, {M. C.}",

year = "1991",

doi = "10.1103/PhysRevLett.66.421",

language = "English (US)",

volume = "66",

pages = "421--424",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "4",

}

Efthimion, PC, Mansfield, DK, Stratton, BC, Synakowski, E, Bhattacharjee, A, Biglari, H, Diamond, PH, Goldston, RJ, Hegna, CC, McCune, D, Rewoldt, G, Scott, S, Tang, WM, Taylor, G, Waltz, RE, Wieland, RM & Zarnstorff, MC 1991, 'Observation of temperature-dependent transport in the TFTR tokamak', Physical review letters, vol. 66, no. 4, pp. 421-424. https://doi.org/10.1103/PhysRevLett.66.421

TY - JOUR

T1 - Observation of temperature-dependent transport in the TFTR tokamak

AU - Efthimion, P. C.

AU - Mansfield, D. K.

AU - Stratton, B. C.

AU - Synakowski, E.

AU - Bhattacharjee, Amitava

AU - Biglari, H.

AU - Diamond, P. H.

AU - Goldston, Robert James

AU - Hegna, C. C.

AU - McCune, D.

AU - Rewoldt, G.

AU - Scott, S.

AU - Tang, W. M.

AU - Taylor, G.

AU - Waltz, R. E.

AU - Wieland, R. M.

AU - Zarnstorff, M. C.

PY - 1991

Y1 - 1991

N2 - Local particle and heat transport coefficients have been measured in a temperature scan of neutral-beamheated plasmas with n, Ip, and Bcphi held constant. The electron transport is ascertained from a flux analysis of a small density perturbation, and the heat transport is obtained from the equilibrium power balance. The transport coefficients vary as Te, where =1.52.5. The observed temperature dependence is predicted by numerical calculations of anomalous transport due to trapped-particle drift-type microinstabilities.

AB - Local particle and heat transport coefficients have been measured in a temperature scan of neutral-beamheated plasmas with n, Ip, and Bcphi held constant. The electron transport is ascertained from a flux analysis of a small density perturbation, and the heat transport is obtained from the equilibrium power balance. The transport coefficients vary as Te, where =1.52.5. The observed temperature dependence is predicted by numerical calculations of anomalous transport due to trapped-particle drift-type microinstabilities.

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UR - http://www.scopus.com/inward/citedby.url?scp=3342918574&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.66.421

DO - 10.1103/PhysRevLett.66.421

M3 - Article

C2 - 10043803

AN - SCOPUS:3342918574

SN - 0031-9007

VL - 66

SP - 421

EP - 424

JO - Physical review letters

JF - Physical review letters

IS - 4

ER -

Observation of temperature-dependent transport in the TFTR tokamak

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All Science Journal Classification (ASJC) codes

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