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

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

49 Scopus citations

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",

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}

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.

UR - https://www.scopus.com/pages/publications/3342918574

UR - https://www.scopus.com/pages/publications/3342918574#tab=citedBy

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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