Stability of a radiative mantle in ITER

M. Ali Mahdavi; G. M. Staebler; R. D. Wood; D. G. Whyte; W. P. West

doi:10.1016/s0022-3115(97)80054-2

Stability of a radiative mantle in ITER

M. Ali Mahdavi, G. M. Staebler, R. D. Wood, D. G. Whyte, W. P. West

Fusion Theory and Modeling

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

Abstract

We report results of a study to evaluate the efficacy of various impurities for heat dispersal by a radiative mantle and radiative divertor (including SOL). We have derived a stability criterion for the mantle radiation which favors low Z impurities and low ratios of edge to core thermal conductivities. Since on the other hand the relative strength of boundary line radiation to core bremsstrahlung favors high Z impurities, we find that for the ITER physics phase argon is the best gaseous impurity for mantle radiation. For the engineering phase of ITER, more detailed analysis is needed to select between krypton and argon.

Original language	English
Pages (from-to)	305-309
Number of pages	5
Journal	Journal of Nuclear Materials
Volume	241-243
DOIs	https://doi.org/10.1016/s0022-3115(97)80054-2
State	Published - Feb 11 1997

Funding

Work supported by the U.S. Department of Energy under Contract Nos. DE-AC03-89ER51114 and W-7405-ENG-48.

Keywords

Boundary plasma
Divertor
Radiative cooling
SOL plasma
Tokamak

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10.1016/s0022-3115(97)80054-2

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title = "Stability of a radiative mantle in ITER",

abstract = "We report results of a study to evaluate the efficacy of various impurities for heat dispersal by a radiative mantle and radiative divertor (including SOL). We have derived a stability criterion for the mantle radiation which favors low Z impurities and low ratios of edge to core thermal conductivities. Since on the other hand the relative strength of boundary line radiation to core bremsstrahlung favors high Z impurities, we find that for the ITER physics phase argon is the best gaseous impurity for mantle radiation. For the engineering phase of ITER, more detailed analysis is needed to select between krypton and argon.",

keywords = "Boundary plasma, Divertor, Radiative cooling, SOL plasma, Tokamak",

author = "Mahdavi, \{M. Ali\} and Staebler, \{G. M.\} and Wood, \{R. D.\} and Whyte, \{D. G.\} and West, \{W. P.\}",

year = "1997",

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doi = "10.1016/s0022-3115(97)80054-2",

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T1 - Stability of a radiative mantle in ITER

AU - Mahdavi, M. Ali

AU - Staebler, G. M.

AU - Wood, R. D.

AU - Whyte, D. G.

AU - West, W. P.

PY - 1997/2/11

Y1 - 1997/2/11

N2 - We report results of a study to evaluate the efficacy of various impurities for heat dispersal by a radiative mantle and radiative divertor (including SOL). We have derived a stability criterion for the mantle radiation which favors low Z impurities and low ratios of edge to core thermal conductivities. Since on the other hand the relative strength of boundary line radiation to core bremsstrahlung favors high Z impurities, we find that for the ITER physics phase argon is the best gaseous impurity for mantle radiation. For the engineering phase of ITER, more detailed analysis is needed to select between krypton and argon.

AB - We report results of a study to evaluate the efficacy of various impurities for heat dispersal by a radiative mantle and radiative divertor (including SOL). We have derived a stability criterion for the mantle radiation which favors low Z impurities and low ratios of edge to core thermal conductivities. Since on the other hand the relative strength of boundary line radiation to core bremsstrahlung favors high Z impurities, we find that for the ITER physics phase argon is the best gaseous impurity for mantle radiation. For the engineering phase of ITER, more detailed analysis is needed to select between krypton and argon.

KW - Boundary plasma

KW - Divertor

KW - Radiative cooling

KW - SOL plasma

KW - Tokamak

UR - https://www.scopus.com/pages/publications/105007051112

U2 - 10.1016/s0022-3115(97)80054-2

DO - 10.1016/s0022-3115(97)80054-2

M3 - Article

AN - SCOPUS:105007051112

SN - 0022-3115

VL - 241-243

SP - 305

EP - 309

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

ER -

Stability of a radiative mantle in ITER

Abstract

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Keywords

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