Plasma-limiter interactions during the q-MODE in TFTR

R. Budny; H. F. Dylla; A. B. Ehrhardt; E. D. Fredrickson; Robert James Goldston; S. J. Kilpatrick; D. C. McCune; K. McGuire; S. S. Medley; A. T. Ramsey; B. C. Stratton; M. Ulrickson

doi:10.1016/0022-3115(89)90272-9

Plasma-limiter interactions during the q-MODE in TFTR

R. Budny, H. F. Dylla, A. B. Ehrhardt, E. D. Fredrickson, Robert James Goldston, S. J. Kilpatrick, D. C. McCune, K. McGuire, S. S. Medley, A. T. Ramsey, B. C. Stratton, M. Ulrickson

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

5 Scopus citations

Abstract

During the q-mode in TFTR, the D_α emissions decrease and the electron density, Zineff, and confinement times increase, as seen during the H-mode in other tokamaks. The interaction of surface islands with the limiter is believed to increase the carbon and electron concentration. Analysis of the deuterium recycling indicates that the recycling coefficient at the last closed flux surface decreases about 15% during the q-mode.

Original language	English (US)
Pages (from-to)	214-220
Number of pages	7
Journal	Journal of Nuclear Materials
Volume	162-164
Issue number	C
DOIs	https://doi.org/10.1016/0022-3115(89)90272-9
State	Published - Apr 1 1989

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
General Materials Science
Nuclear Energy and Engineering

Keywords

TFTR
electron-density profile
plasma-limiter interaction
q-transitions

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10.1016/0022-3115(89)90272-9

Cite this

@article{70dda89820094e628cf4a9f6f7951f7d,

title = "Plasma-limiter interactions during the q-MODE in TFTR",

abstract = "During the q-mode in TFTR, the Dα emissions decrease and the electron density, Zineff, and confinement times increase, as seen during the H-mode in other tokamaks. The interaction of surface islands with the limiter is believed to increase the carbon and electron concentration. Analysis of the deuterium recycling indicates that the recycling coefficient at the last closed flux surface decreases about 15% during the q-mode.",

keywords = "TFTR, electron-density profile, plasma-limiter interaction, q-transitions",

author = "R. Budny and Dylla, {H. F.} and Ehrhardt, {A. B.} and Fredrickson, {E. D.} and Goldston, {Robert James} and Kilpatrick, {S. J.} and McCune, {D. C.} and K. McGuire and Medley, {S. S.} and Ramsey, {A. T.} and Stratton, {B. C.} and M. Ulrickson",

note = "Funding Information: We wish to thank D. Heifetz for very helpful discussions. This work was supported by the US Department of Energy Contract number DE-AC02-76-CHO-3073.",

year = "1989",

month = apr,

day = "1",

doi = "10.1016/0022-3115(89)90272-9",

language = "English (US)",

volume = "162-164",

pages = "214--220",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier",

number = "C",

}

TY - JOUR

T1 - Plasma-limiter interactions during the q-MODE in TFTR

AU - Budny, R.

AU - Dylla, H. F.

AU - Ehrhardt, A. B.

AU - Fredrickson, E. D.

AU - Goldston, Robert James

AU - Kilpatrick, S. J.

AU - McCune, D. C.

AU - McGuire, K.

AU - Medley, S. S.

AU - Ramsey, A. T.

AU - Stratton, B. C.

AU - Ulrickson, M.

N1 - Funding Information: We wish to thank D. Heifetz for very helpful discussions. This work was supported by the US Department of Energy Contract number DE-AC02-76-CHO-3073.

PY - 1989/4/1

Y1 - 1989/4/1

N2 - During the q-mode in TFTR, the Dα emissions decrease and the electron density, Zineff, and confinement times increase, as seen during the H-mode in other tokamaks. The interaction of surface islands with the limiter is believed to increase the carbon and electron concentration. Analysis of the deuterium recycling indicates that the recycling coefficient at the last closed flux surface decreases about 15% during the q-mode.

AB - During the q-mode in TFTR, the Dα emissions decrease and the electron density, Zineff, and confinement times increase, as seen during the H-mode in other tokamaks. The interaction of surface islands with the limiter is believed to increase the carbon and electron concentration. Analysis of the deuterium recycling indicates that the recycling coefficient at the last closed flux surface decreases about 15% during the q-mode.

KW - TFTR

KW - electron-density profile

KW - plasma-limiter interaction

KW - q-transitions

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U2 - 10.1016/0022-3115(89)90272-9

DO - 10.1016/0022-3115(89)90272-9

M3 - Article

AN - SCOPUS:45149142969

SN - 0022-3115

VL - 162-164

SP - 214

EP - 220

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

IS - C

ER -

Plasma-limiter interactions during the q-MODE in TFTR

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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