Enhanced confinement discharges in DIII-D with neon and argon induced radiation

G. L. Jackson; M. Murakami; G. M. Staebler; M. R. Wade; A. M. Messiaen; J. Ongena; B. Unterberg; J. A. Boedo; T. E. Evans; A. W. Hyatt; R. J. LaHaye; C. J. Lasnier; A. W. Leonard; G. W. McKee; R. Maingi; R. A. Moyer; T. W. Petrie; W. P. West

doi:10.1016/S0022-3115(98)00653-9

Enhanced confinement discharges in DIII-D with neon and argon induced radiation

G. L. Jackson, M. Murakami, G. M. Staebler, M. R. Wade, A. M. Messiaen, J. Ongena, B. Unterberg, J. A. Boedo, T. E. Evans, A. W. Hyatt, R. J. LaHaye, C. J. Lasnier, A. W. Leonard, G. W. McKee, R. Maingi, R. A. Moyer, T. W. Petrie, W. P. West

Fusion and Fission Energy and Science Di

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

38 Scopus citations

Abstract

Enhanced energy confinement in discharges with impurity induced radiating power fractions, P_rad/P_in, from 50% to 100% have been observed in the DIII-D tokamak with neon and argon gas puffing. These radiating mantle enhanced confinement discharges have been obtained in the DIII-D tokamak under a variety of conditions: diverted and limited configurations with both an H-mode and L-mode edge. Confinement enhancements as high as the ELM free H-mode scaling relation have been obtained with impurity gas puffing, although operation at the highest densities is transient. Similarities and differences between these DIII-D discharges and RI-mode discharges obtained in the TEXTOR tokamak are discussed.

Original language	English
Pages (from-to)	380-385
Number of pages	6
Journal	Journal of Nuclear Materials
Volume	266
DOIs	https://doi.org/10.1016/S0022-3115(98)00653-9
State	Published - Mar 2 1999

Funding

Work supported by US Department of Energy under Contracts DE-AC03-89ER51114, DE-AC05-96OR22464, W-7405-ENG-48, and Grant DE-FG03-95ER54294. This work was also done as part of the DIII-D – TEXTOR collaboration supported by DOE and Euratom.

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Jackson, G. L., Murakami, M., Staebler, G. M., Wade, M. R., Messiaen, A. M., Ongena, J., Unterberg, B., Boedo, J. A., Evans, T. E., Hyatt, A. W., LaHaye, R. J., Lasnier, C. J., Leonard, A. W., McKee, G. W., Maingi, R., Moyer, R. A., Petrie, T. W., & West, W. P. (1999). Enhanced confinement discharges in DIII-D with neon and argon induced radiation. Journal of Nuclear Materials, 266, 380-385. https://doi.org/10.1016/S0022-3115(98)00653-9

@article{87ab24369fef4dbbaf8579e89c37c0c4,

title = "Enhanced confinement discharges in DIII-D with neon and argon induced radiation",

abstract = "Enhanced energy confinement in discharges with impurity induced radiating power fractions, Prad/Pin, from 50\% to 100\% have been observed in the DIII-D tokamak with neon and argon gas puffing. These radiating mantle enhanced confinement discharges have been obtained in the DIII-D tokamak under a variety of conditions: diverted and limited configurations with both an H-mode and L-mode edge. Confinement enhancements as high as the ELM free H-mode scaling relation have been obtained with impurity gas puffing, although operation at the highest densities is transient. Similarities and differences between these DIII-D discharges and RI-mode discharges obtained in the TEXTOR tokamak are discussed.",

author = "Jackson, \{G. L.\} and M. Murakami and Staebler, \{G. M.\} and Wade, \{M. R.\} and Messiaen, \{A. M.\} and J. Ongena and B. Unterberg and Boedo, \{J. A.\} and Evans, \{T. E.\} and Hyatt, \{A. W.\} and LaHaye, \{R. J.\} and Lasnier, \{C. J.\} and Leonard, \{A. W.\} and McKee, \{G. W.\} and R. Maingi and Moyer, \{R. A.\} and Petrie, \{T. W.\} and West, \{W. P.\}",

year = "1999",

month = mar,

day = "2",

doi = "10.1016/S0022-3115(98)00653-9",

language = "English",

volume = "266",

pages = "380--385",

journal = "Journal of Nuclear Materials",

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Jackson, GL, Murakami, M, Staebler, GM , Wade, MR, Messiaen, AM, Ongena, J, Unterberg, B, Boedo, JA, Evans, TE, Hyatt, AW, LaHaye, RJ, Lasnier, CJ, Leonard, AW, McKee, GW, Maingi, R, Moyer, RA, Petrie, TW & West, WP 1999, 'Enhanced confinement discharges in DIII-D with neon and argon induced radiation', Journal of Nuclear Materials, vol. 266, pp. 380-385. https://doi.org/10.1016/S0022-3115(98)00653-9

TY - JOUR

T1 - Enhanced confinement discharges in DIII-D with neon and argon induced radiation

AU - Jackson, G. L.

AU - Murakami, M.

AU - Staebler, G. M.

AU - Wade, M. R.

AU - Messiaen, A. M.

AU - Ongena, J.

AU - Unterberg, B.

AU - Boedo, J. A.

AU - Evans, T. E.

AU - Hyatt, A. W.

AU - LaHaye, R. J.

AU - Lasnier, C. J.

AU - Leonard, A. W.

AU - McKee, G. W.

AU - Maingi, R.

AU - Moyer, R. A.

AU - Petrie, T. W.

AU - West, W. P.

PY - 1999/3/2

Y1 - 1999/3/2

N2 - Enhanced energy confinement in discharges with impurity induced radiating power fractions, Prad/Pin, from 50% to 100% have been observed in the DIII-D tokamak with neon and argon gas puffing. These radiating mantle enhanced confinement discharges have been obtained in the DIII-D tokamak under a variety of conditions: diverted and limited configurations with both an H-mode and L-mode edge. Confinement enhancements as high as the ELM free H-mode scaling relation have been obtained with impurity gas puffing, although operation at the highest densities is transient. Similarities and differences between these DIII-D discharges and RI-mode discharges obtained in the TEXTOR tokamak are discussed.

AB - Enhanced energy confinement in discharges with impurity induced radiating power fractions, Prad/Pin, from 50% to 100% have been observed in the DIII-D tokamak with neon and argon gas puffing. These radiating mantle enhanced confinement discharges have been obtained in the DIII-D tokamak under a variety of conditions: diverted and limited configurations with both an H-mode and L-mode edge. Confinement enhancements as high as the ELM free H-mode scaling relation have been obtained with impurity gas puffing, although operation at the highest densities is transient. Similarities and differences between these DIII-D discharges and RI-mode discharges obtained in the TEXTOR tokamak are discussed.

UR - https://www.scopus.com/pages/publications/0032639706

U2 - 10.1016/S0022-3115(98)00653-9

DO - 10.1016/S0022-3115(98)00653-9

M3 - Conference article

AN - SCOPUS:0032639706

SN - 0022-3115

VL - 266

SP - 380

EP - 385

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

ER -

Enhanced confinement discharges in DIII-D with neon and argon induced radiation

Abstract

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