Effect of plasma shape on particle flux and particle removal in DIII-D

J. G. Watkins; T. W. Petrie; C. J. Lasnier; S. L. Allen; M. E. Fenstermacher; T. C. Luce; M. A. Mahdavi; R. Maingi; L. W. Owen; M. E. Rensink; M. R. Wade

doi:10.1016/S0022-3115(02)01529-5

Effect of plasma shape on particle flux and particle removal in DIII-D

J. G. Watkins
, T. W. Petrie
, C. J. Lasnier
, S. L. Allen
, M. E. Fenstermacher
, T. C. Luce
, M. A. Mahdavi
, R. Maingi
, L. W. Owen
, M. E. Rensink
, M. R. Wade

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

Measurements from balanced or slightly unbalanced, double-null, ELMing H-mode plasmas show that the upper, more closed, divertor strike point particle fluxes are larger than the lower, more open, divertor strike point particle fluxes for comparable conditions. Comparison of the upper and lower outer strike point peak particle fluxes measured with Langmuir probes during scans of the magnetic balance shows an asymmetry around the magnetic balance point which is consistent with both the enhanced upper recycling and the expected direction of private region E × B drifts. Comparison of the inner and outer peak particle fluxes in the upper divertor shows a dependence on magnetic field direction that is also consistent with the private region E × B drift direction.

Original language	English (US)
Pages (from-to)	1258-1261
Number of pages	4
Journal	Journal of Nuclear Materials
Volume	313-316
Issue number	SUPPL.
DOIs	https://doi.org/10.1016/S0022-3115(02)01529-5
State	Published - Mar 2003
Externally published	Yes
Event	Plasma - Surface Interactions in Controlled Fusion Devices - Gifu, Japan Duration: May 26 2002 → May 31 2002

All Science Journal Classification (ASJC) codes

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

Keywords

Double-null
Langmuir probes
Magnetic balance
Particle flux
Recycling
Tokamak

Access to Document

10.1016/S0022-3115(02)01529-5

Cite this

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title = "Effect of plasma shape on particle flux and particle removal in DIII-D",

abstract = "Measurements from balanced or slightly unbalanced, double-null, ELMing H-mode plasmas show that the upper, more closed, divertor strike point particle fluxes are larger than the lower, more open, divertor strike point particle fluxes for comparable conditions. Comparison of the upper and lower outer strike point peak particle fluxes measured with Langmuir probes during scans of the magnetic balance shows an asymmetry around the magnetic balance point which is consistent with both the enhanced upper recycling and the expected direction of private region E × B drifts. Comparison of the inner and outer peak particle fluxes in the upper divertor shows a dependence on magnetic field direction that is also consistent with the private region E × B drift direction.",

keywords = "Double-null, Langmuir probes, Magnetic balance, Particle flux, Recycling, Tokamak",

author = "Watkins, \{J. G.\} and Petrie, \{T. W.\} and Lasnier, \{C. J.\} and Allen, \{S. L.\} and Fenstermacher, \{M. E.\} and Luce, \{T. C.\} and Mahdavi, \{M. A.\} and R. Maingi and Owen, \{L. W.\} and Rensink, \{M. E.\} and Wade, \{M. R.\}",

year = "2003",

month = mar,

doi = "10.1016/S0022-3115(02)01529-5",

language = "English (US)",

volume = "313-316",

pages = "1258--1261",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier B.V.",

number = "SUPPL.",

note = "Plasma - Surface Interactions in Controlled Fusion Devices ; Conference date: 26-05-2002 Through 31-05-2002",

}

TY - JOUR

T1 - Effect of plasma shape on particle flux and particle removal in DIII-D

AU - Watkins, J. G.

AU - Petrie, T. W.

AU - Lasnier, C. J.

AU - Allen, S. L.

AU - Fenstermacher, M. E.

AU - Luce, T. C.

AU - Mahdavi, M. A.

AU - Maingi, R.

AU - Owen, L. W.

AU - Rensink, M. E.

AU - Wade, M. R.

PY - 2003/3

Y1 - 2003/3

N2 - Measurements from balanced or slightly unbalanced, double-null, ELMing H-mode plasmas show that the upper, more closed, divertor strike point particle fluxes are larger than the lower, more open, divertor strike point particle fluxes for comparable conditions. Comparison of the upper and lower outer strike point peak particle fluxes measured with Langmuir probes during scans of the magnetic balance shows an asymmetry around the magnetic balance point which is consistent with both the enhanced upper recycling and the expected direction of private region E × B drifts. Comparison of the inner and outer peak particle fluxes in the upper divertor shows a dependence on magnetic field direction that is also consistent with the private region E × B drift direction.

AB - Measurements from balanced or slightly unbalanced, double-null, ELMing H-mode plasmas show that the upper, more closed, divertor strike point particle fluxes are larger than the lower, more open, divertor strike point particle fluxes for comparable conditions. Comparison of the upper and lower outer strike point peak particle fluxes measured with Langmuir probes during scans of the magnetic balance shows an asymmetry around the magnetic balance point which is consistent with both the enhanced upper recycling and the expected direction of private region E × B drifts. Comparison of the inner and outer peak particle fluxes in the upper divertor shows a dependence on magnetic field direction that is also consistent with the private region E × B drift direction.

KW - Double-null

KW - Langmuir probes

KW - Magnetic balance

KW - Particle flux

KW - Recycling

KW - Tokamak

UR - https://www.scopus.com/pages/publications/17344376166

UR - https://www.scopus.com/pages/publications/17344376166#tab=citedBy

U2 - 10.1016/S0022-3115(02)01529-5

DO - 10.1016/S0022-3115(02)01529-5

M3 - Conference article

AN - SCOPUS:17344376166

SN - 0022-3115

VL - 313-316

SP - 1258

EP - 1261

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

IS - SUPPL.

T2 - Plasma - Surface Interactions in Controlled Fusion Devices

Y2 - 26 May 2002 through 31 May 2002

ER -

Effect of plasma shape on particle flux and particle removal in DIII-D

Abstract

All Science Journal Classification (ASJC) codes

Keywords

Access to Document

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