Confinement time scaling in TEXT

R. V. Bravenec; K. W. Gentle; P. E. Phillips; T. R. Price; W. L. Rowan; K. Empson; W. L. Hodge; C. Klepper; T. P. Kochanski; D. M. Patterson; J. Porter; B. Richards

doi:10.1088/0741-3335/27/11/009

Confinement time scaling in TEXT

R. V. Bravenec, K. W. Gentle, P. E. Phillips, T. R. Price, W. L. Rowan, K. Empson, W. L. Hodge, C. Klepper, T. P. Kochanski, D. M. Patterson, J. Porter, B. Richards

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Abstract

Values of the total energy confinement time tau _E are presented for ohmic hydrogen discharges on the TEXT Tokamak, spanning a range of chord-averaged densities of 2.0-8.5*10¹³ cm^-3, plasma currents of 150-400 kA, and toroidal fields of 15-28 kG. At the higher densities tau _E exhibits a saturation which corresponds well with a recently proposed scaling law (Goldston, 1984) in which the saturated value is given by an empirical expression for beam-heated limiter discharges with P _tot identical to P_OH. The relationship between this observed saturation and density-profile widths is addressed.

Original language	English
Article number	009
Pages (from-to)	1335-1338
Number of pages	4
Journal	Plasma Physics and Controlled Fusion
Volume	27
Issue number	11
DOIs	https://doi.org/10.1088/0741-3335/27/11/009
State	Published - 1985
Externally published	Yes

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@article{46b2e18b710f44ff8c90be35d5b51c9b,

title = "Confinement time scaling in TEXT",

abstract = "Values of the total energy confinement time tau E are presented for ohmic hydrogen discharges on the TEXT Tokamak, spanning a range of chord-averaged densities of 2.0-8.5*1013 cm-3, plasma currents of 150-400 kA, and toroidal fields of 15-28 kG. At the higher densities tau E exhibits a saturation which corresponds well with a recently proposed scaling law (Goldston, 1984) in which the saturated value is given by an empirical expression for beam-heated limiter discharges with P tot identical to POH. The relationship between this observed saturation and density-profile widths is addressed.",

author = "Bravenec, {R. V.} and Gentle, {K. W.} and Phillips, {P. E.} and Price, {T. R.} and Rowan, {W. L.} and K. Empson and Hodge, {W. L.} and C. Klepper and Kochanski, {T. P.} and Patterson, {D. M.} and J. Porter and B. Richards",

year = "1985",

doi = "10.1088/0741-3335/27/11/009",

language = "English",

volume = "27",

pages = "1335--1338",

journal = "Plasma Physics and Controlled Fusion",

issn = "0741-3335",

publisher = "IOP Publishing",

number = "11",

}

TY - JOUR

T1 - Confinement time scaling in TEXT

AU - Bravenec, R. V.

AU - Gentle, K. W.

AU - Phillips, P. E.

AU - Price, T. R.

AU - Rowan, W. L.

AU - Empson, K.

AU - Hodge, W. L.

AU - Klepper, C.

AU - Kochanski, T. P.

AU - Patterson, D. M.

AU - Porter, J.

AU - Richards, B.

PY - 1985

Y1 - 1985

N2 - Values of the total energy confinement time tau E are presented for ohmic hydrogen discharges on the TEXT Tokamak, spanning a range of chord-averaged densities of 2.0-8.5*1013 cm-3, plasma currents of 150-400 kA, and toroidal fields of 15-28 kG. At the higher densities tau E exhibits a saturation which corresponds well with a recently proposed scaling law (Goldston, 1984) in which the saturated value is given by an empirical expression for beam-heated limiter discharges with P tot identical to POH. The relationship between this observed saturation and density-profile widths is addressed.

AB - Values of the total energy confinement time tau E are presented for ohmic hydrogen discharges on the TEXT Tokamak, spanning a range of chord-averaged densities of 2.0-8.5*1013 cm-3, plasma currents of 150-400 kA, and toroidal fields of 15-28 kG. At the higher densities tau E exhibits a saturation which corresponds well with a recently proposed scaling law (Goldston, 1984) in which the saturated value is given by an empirical expression for beam-heated limiter discharges with P tot identical to POH. The relationship between this observed saturation and density-profile widths is addressed.

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DO - 10.1088/0741-3335/27/11/009

M3 - Article

AN - SCOPUS:0000764949

SN - 0741-3335

VL - 27

SP - 1335

EP - 1338

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

IS - 11

M1 - 009

ER -

Confinement time scaling in TEXT

Abstract

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