Impact of impurity radiation locations on the plasma performance at W7-X stellarator

W7-X Team

Impact of impurity radiation locations on the plasma performance at W7-X stellarator

W7-X Team

PPPL Advanced Projects

Research output: Contribution to conference › Paper › peer-review

Abstract

High-density, high-radiation regimes with plasma detachment have been observed at W7-X for both pre- and post-boronisation experiments. Examination of the plasma performance at detachment transition has been carried out. Correlation of frad,core with degradation of both Wp and t_E has been identified under the studied plasma conditions. However, co-enhancement of frad,core with Wp and t_E has been observed after Fe-injections. Systematic investigations concerning these topics are ongoing. Study of the underlying physics and exploration of the optimum operation windows of W7-X are addressed.

Original language	English (US)
State	Published - 2019
Event	46th European Physical Society Conference on Plasma Physics, EPS 2019 - Milan, Italy Duration: Jul 8 2019 → Jul 12 2019

Conference

Conference	46th European Physical Society Conference on Plasma Physics, EPS 2019
Country/Territory	Italy
City	Milan
Period	7/8/19 → 7/12/19

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

Cite this

@conference{30297fc5842d4fc38f2a65b08cc69680,

title = "Impact of impurity radiation locations on the plasma performance at W7-X stellarator",

abstract = "High-density, high-radiation regimes with plasma detachment have been observed at W7-X for both pre- and post-boronisation experiments. Examination of the plasma performance at detachment transition has been carried out. Correlation of frad,core with degradation of both Wp and tE has been identified under the studied plasma conditions. However, co-enhancement of frad,core with Wp and tE has been observed after Fe-injections. Systematic investigations concerning these topics are ongoing. Study of the underlying physics and exploration of the optimum operation windows of W7-X are addressed.",

author = "\{W7-X Team\} and D. Zhang and R. Burhenn and P. Hacker and F. Reimold and L. Giannone and S. Kwak and R. Laube and J. Svensson and F. Penzel and J. Baldzuhn and Beidler, \{C. D.\} and M. Beurskens and S. Bozhenkov and S. Brezinsek and Brunner, \{K. J.\} and R. Bussiahn and B. Buttensch{\"o}n and Y. Feng and G. Fuchert and Y. Gao and O. Grulke and U. H{\"o}fel and M. Hirsch and Z. Huang and M. Jakubowski and J. Knauer and R. K{\"o}nig and M. Krychowiak and Laqua, \{H. P.\} and A. Langenberg and H. Niemann and N. Pablant and A. Pavone and E. Pasch and K. Rahbarnia and A. Stechow and N. Tamura and H. Thomsen",

year = "2019",

language = "English (US)",

}

TY - CONF

T1 - Impact of impurity radiation locations on the plasma performance at W7-X stellarator

AU - W7-X Team

AU - Zhang, D.

AU - Burhenn, R.

AU - Hacker, P.

AU - Reimold, F.

AU - Giannone, L.

AU - Kwak, S.

AU - Laube, R.

AU - Svensson, J.

AU - Penzel, F.

AU - Baldzuhn, J.

AU - Beidler, C. D.

AU - Beurskens, M.

AU - Bozhenkov, S.

AU - Brezinsek, S.

AU - Brunner, K. J.

AU - Bussiahn, R.

AU - Buttenschön, B.

AU - Feng, Y.

AU - Fuchert, G.

AU - Gao, Y.

AU - Grulke, O.

AU - Höfel, U.

AU - Hirsch, M.

AU - Huang, Z.

AU - Jakubowski, M.

AU - Knauer, J.

AU - König, R.

AU - Krychowiak, M.

AU - Laqua, H. P.

AU - Langenberg, A.

AU - Niemann, H.

AU - Pablant, N.

AU - Pavone, A.

AU - Pasch, E.

AU - Rahbarnia, K.

AU - Stechow, A.

AU - Tamura, N.

AU - Thomsen, H.

PY - 2019

Y1 - 2019

N2 - High-density, high-radiation regimes with plasma detachment have been observed at W7-X for both pre- and post-boronisation experiments. Examination of the plasma performance at detachment transition has been carried out. Correlation of frad,core with degradation of both Wp and tE has been identified under the studied plasma conditions. However, co-enhancement of frad,core with Wp and tE has been observed after Fe-injections. Systematic investigations concerning these topics are ongoing. Study of the underlying physics and exploration of the optimum operation windows of W7-X are addressed.

AB - High-density, high-radiation regimes with plasma detachment have been observed at W7-X for both pre- and post-boronisation experiments. Examination of the plasma performance at detachment transition has been carried out. Correlation of frad,core with degradation of both Wp and tE has been identified under the studied plasma conditions. However, co-enhancement of frad,core with Wp and tE has been observed after Fe-injections. Systematic investigations concerning these topics are ongoing. Study of the underlying physics and exploration of the optimum operation windows of W7-X are addressed.

UR - https://www.scopus.com/pages/publications/85084019988

UR - https://www.scopus.com/pages/publications/85084019988#tab=citedBy

M3 - Paper

AN - SCOPUS:85084019988

T2 - 46th European Physical Society Conference on Plasma Physics, EPS 2019

Y2 - 8 July 2019 through 12 July 2019

ER -

Impact of impurity radiation locations on the plasma performance at W7-X stellarator

Abstract

Conference

All Science Journal Classification (ASJC) codes

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