Divertor heat and particle control experiments on the DIII-D tokamak

M. A. Mahdavi; S. L. Allen; D. R. Baker; B. Bastasz; N. H. Brooks; D. Buchenauer; R. B. Campbell; J. W. Cuthbertson; T. E. Evans; M. E. Fenstermacher; D. F. Finkenthal; J. Foote; D. N. Hill; D. L. Hillis; F. L. Hinton; J. Hogan; A. W. Howald; A. W. Hyatt; G. L. Jackson; R. Jong; S. Konoshima; C. Lasnier; A. W. Leonard; S. I. Lippmann; R. Maingi; M. M. Menon; P. K. Mioduszewski; R. A. Moyer; H. Ogawa; T. W. Petrie; G. D. Porter; M. E. Rensink; T. D. Rognlein; M. J. Schaffer; K. M. Schaubel; D. L. Sevier; J. P. Smith; G. M. Staebler; G. T. Sager; R. D. Stambaugh; D. Thomas; M. R. Wade; J. G. Watkins; F. Weschenfelder; W. P. West; D. G. Whyte; J. Winter; C. P.C. Wong; R. D. Wood

doi:10.1016/0022-3115(94)00443-9

Divertor heat and particle control experiments on the DIII-D tokamak

M. A. Mahdavi, S. L. Allen, D. R. Baker, B. Bastasz, N. H. Brooks, D. Buchenauer, R. B. Campbell, J. W. Cuthbertson, T. E. Evans, M. E. Fenstermacher, D. F. Finkenthal, J. Foote, D. N. Hill, D. L. Hillis, F. L. Hinton, J. Hogan, A. W. Howald, A. W. Hyatt, G. L. Jackson, R. JongS. Konoshima, C. Lasnier, A. W. Leonard, S. I. Lippmann, R. Maingi, M. M. Menon, P. K. Mioduszewski, R. A. Moyer, H. Ogawa, T. W. Petrie, G. D. Porter, M. E. Rensink, T. D. Rognlein, M. J. Schaffer, K. M. Schaubel, D. L. Sevier, J. P. Smith, G. M. Staebler, G. T. Sager, R. D. Stambaugh, D. Thomas, M. R. Wade, J. G. Watkins, F. Weschenfelder, W. P. West, D. G. Whyte, J. Winter, C. P.C. Wong, R. D. Wood

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33 Scopus citations

Abstract

In this paper we present a summary of recent DIII-D divertor physics activity and plans for future divertor upgrades. During the past year, DIII-D experimental effort was focused on areas of active heat and particle control and divertor target erosion studies. Using the DIII-D Advanced Divertor system we have succeeded for the first time to control the plasma density and demonstrate helium exhaust in H-mode plasmas. Divertor heat flux control by means of D₂ gas puffing and impurity injection were studied separately and in both cases up to a factor of five reduction of the divertor peak heat flux was observed. Using the DiMES sample transfer system we have obtained erosion data on various material samples in well diagnosed plasmas and compared the results with predictions of numerical models.

Original language	English
Pages (from-to)	13-24
Number of pages	12
Journal	Journal of Nuclear Materials
Volume	220-222
DOIs	https://doi.org/10.1016/0022-3115(94)00443-9
State	Published - 1995
Externally published	Yes

Funding

Development of an effective divertor heat control technique is essential for viability of ITER and other future tokamak fusion reactors. For example, ITER is expected to generate > 300 MW of alpha power. Such a large heat load is a severe technical challenge, espe- * Work supported by the US, Department of Energy under Contract nos. De-AC03-89ER51114, W-7405-ENG-48, DE-AC05-84OR21400, DE-FG03-89ER51121, and DE-AC03-76DP00789. 1 Lawrence Livermore National Laboratory. 2 Sandia National Laboratories. 3 University of California at Berkeley.

Funders	Funder number
U.S. Department of Energy	DE-FG03-89ER51121, De-AC03-89ER51114, W-7405-ENG-48, DE-AC03-76DP00789, DE-AC05-84OR21400
U.S. Department of Energy

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/0022-3115(94)00443-9

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Mahdavi, M. A., Allen, S. L., Baker, D. R., Bastasz, B., Brooks, N. H., Buchenauer, D., Campbell, R. B., Cuthbertson, J. W., Evans, T. E., Fenstermacher, M. E., Finkenthal, D. F., Foote, J., Hill, D. N., Hillis, D. L., Hinton, F. L., Hogan, J., Howald, A. W., Hyatt, A. W., Jackson, G. L., ... Wood, R. D. (1995). Divertor heat and particle control experiments on the DIII-D tokamak. Journal of Nuclear Materials, 220-222, 13-24. https://doi.org/10.1016/0022-3115(94)00443-9

@article{b50524e890ea418585eebe41a0b018d8,

title = "Divertor heat and particle control experiments on the DIII-D tokamak",

abstract = "In this paper we present a summary of recent DIII-D divertor physics activity and plans for future divertor upgrades. During the past year, DIII-D experimental effort was focused on areas of active heat and particle control and divertor target erosion studies. Using the DIII-D Advanced Divertor system we have succeeded for the first time to control the plasma density and demonstrate helium exhaust in H-mode plasmas. Divertor heat flux control by means of D2 gas puffing and impurity injection were studied separately and in both cases up to a factor of five reduction of the divertor peak heat flux was observed. Using the DiMES sample transfer system we have obtained erosion data on various material samples in well diagnosed plasmas and compared the results with predictions of numerical models.",

author = "Mahdavi, {M. A.} and Allen, {S. L.} and Baker, {D. R.} and B. Bastasz and Brooks, {N. H.} and D. Buchenauer and Campbell, {R. B.} and Cuthbertson, {J. W.} and Evans, {T. E.} and Fenstermacher, {M. E.} and Finkenthal, {D. F.} and J. Foote and Hill, {D. N.} and Hillis, {D. L.} and Hinton, {F. L.} and J. Hogan and Howald, {A. W.} and Hyatt, {A. W.} and Jackson, {G. L.} and R. Jong and S. Konoshima and C. Lasnier and Leonard, {A. W.} and Lippmann, {S. I.} and R. Maingi and Menon, {M. M.} and Mioduszewski, {P. K.} and Moyer, {R. A.} and H. Ogawa and Petrie, {T. W.} and Porter, {G. D.} and Rensink, {M. E.} and Rognlein, {T. D.} and Schaffer, {M. J.} and Schaubel, {K. M.} and Sevier, {D. L.} and Smith, {J. P.} and Staebler, {G. M.} and Sager, {G. T.} and Stambaugh, {R. D.} and D. Thomas and Wade, {M. R.} and Watkins, {J. G.} and F. Weschenfelder and West, {W. P.} and Whyte, {D. G.} and J. Winter and Wong, {C. P.C.} and Wood, {R. D.}",

year = "1995",

doi = "10.1016/0022-3115(94)00443-9",

language = "English",

volume = "220-222",

pages = "13--24",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier",

}

Mahdavi, MA, Allen, SL, Baker, DR, Bastasz, B, Brooks, NH, Buchenauer, D, Campbell, RB, Cuthbertson, JW, Evans, TE, Fenstermacher, ME, Finkenthal, DF, Foote, J, Hill, DN, Hillis, DL, Hinton, FL, Hogan, J, Howald, AW, Hyatt, AW, Jackson, GL, Jong, R, Konoshima, S, Lasnier, C, Leonard, AW, Lippmann, SI, Maingi, R, Menon, MM, Mioduszewski, PK, Moyer, RA, Ogawa, H, Petrie, TW, Porter, GD, Rensink, ME, Rognlein, TD, Schaffer, MJ, Schaubel, KM, Sevier, DL, Smith, JP, Staebler, GM, Sager, GT, Stambaugh, RD, Thomas, D, Wade, MR, Watkins, JG, Weschenfelder, F, West, WP, Whyte, DG, Winter, J, Wong, CPC & Wood, RD 1995, 'Divertor heat and particle control experiments on the DIII-D tokamak', Journal of Nuclear Materials, vol. 220-222, pp. 13-24. https://doi.org/10.1016/0022-3115(94)00443-9

TY - JOUR

T1 - Divertor heat and particle control experiments on the DIII-D tokamak

AU - Mahdavi, M. A.

AU - Allen, S. L.

AU - Baker, D. R.

AU - Bastasz, B.

AU - Brooks, N. H.

AU - Buchenauer, D.

AU - Campbell, R. B.

AU - Cuthbertson, J. W.

AU - Evans, T. E.

AU - Fenstermacher, M. E.

AU - Finkenthal, D. F.

AU - Foote, J.

AU - Hill, D. N.

AU - Hillis, D. L.

AU - Hinton, F. L.

AU - Hogan, J.

AU - Howald, A. W.

AU - Hyatt, A. W.

AU - Jackson, G. L.

AU - Jong, R.

AU - Konoshima, S.

AU - Lasnier, C.

AU - Leonard, A. W.

AU - Lippmann, S. I.

AU - Maingi, R.

AU - Menon, M. M.

AU - Mioduszewski, P. K.

AU - Moyer, R. A.

AU - Ogawa, H.

AU - Petrie, T. W.

AU - Porter, G. D.

AU - Rensink, M. E.

AU - Rognlein, T. D.

AU - Schaffer, M. J.

AU - Schaubel, K. M.

AU - Sevier, D. L.

AU - Smith, J. P.

AU - Staebler, G. M.

AU - Sager, G. T.

AU - Stambaugh, R. D.

AU - Thomas, D.

AU - Wade, M. R.

AU - Watkins, J. G.

AU - Weschenfelder, F.

AU - West, W. P.

AU - Whyte, D. G.

AU - Winter, J.

AU - Wong, C. P.C.

AU - Wood, R. D.

PY - 1995

Y1 - 1995

N2 - In this paper we present a summary of recent DIII-D divertor physics activity and plans for future divertor upgrades. During the past year, DIII-D experimental effort was focused on areas of active heat and particle control and divertor target erosion studies. Using the DIII-D Advanced Divertor system we have succeeded for the first time to control the plasma density and demonstrate helium exhaust in H-mode plasmas. Divertor heat flux control by means of D2 gas puffing and impurity injection were studied separately and in both cases up to a factor of five reduction of the divertor peak heat flux was observed. Using the DiMES sample transfer system we have obtained erosion data on various material samples in well diagnosed plasmas and compared the results with predictions of numerical models.

AB - In this paper we present a summary of recent DIII-D divertor physics activity and plans for future divertor upgrades. During the past year, DIII-D experimental effort was focused on areas of active heat and particle control and divertor target erosion studies. Using the DIII-D Advanced Divertor system we have succeeded for the first time to control the plasma density and demonstrate helium exhaust in H-mode plasmas. Divertor heat flux control by means of D2 gas puffing and impurity injection were studied separately and in both cases up to a factor of five reduction of the divertor peak heat flux was observed. Using the DiMES sample transfer system we have obtained erosion data on various material samples in well diagnosed plasmas and compared the results with predictions of numerical models.

UR - http://www.scopus.com/inward/record.url?scp=0001251236&partnerID=8YFLogxK

U2 - 10.1016/0022-3115(94)00443-9

DO - 10.1016/0022-3115(94)00443-9

M3 - Article

AN - SCOPUS:0001251236

SN - 0022-3115

VL - 220-222

SP - 13

EP - 24

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

ER -

Divertor heat and particle control experiments on the DIII-D tokamak

Abstract

Funding

UN SDGs

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