Observation of continuous divertor detachment in H-mode discharges in ASDEX upgrade

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Date
1995
Authors
Gruber, O.
Kallenbach, A.
Kaufmann, M.
Lackner, K.
Mertens, V.
Neuhauser, J.
Ryter, F.
Zohm, H.
Bessenrodt-Weberpals, M.
Büchl, K.
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American Physical Society
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Abstract
Feedback-controlled puffing of neon and deuterium has been applied to control the edge-localized-mode behavior and the target plate power deposition during high-power H-mode discharges in ASDEX Upgrade. A regime has been found in which more than 90% of the heating power is lost through radiation and divertor detachment occurs, without deterioration of the energy confinement. The plasma remains in the H mode, exhibiting small-amplitude, high-frequency ELM's, which do not penetrate to the target plates in the strike zone region.
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Keywords
Energy confinement , DIII-D
Citation
Gruber, O., Kallenbach, A., Kaufmann, M., Lackner, K., Mertens, V., Neuhauser, J., Ryter, F., Zohm, H., Bessenrodt-Weberpals, M., Büchl, K., Fiedler, S., Field, A., Fuchs, C., Garcia-Rosales, C., Haas, G., Herrmann, A., Herrmann, W., Hirsch, S., Köppendörfer, W., Lang, P., Lieder, G., Mast, K. F., Pitcher, C. S., Schittenhelm, M., Stober, J., Suttrop, W., Troppmann, M., Weinlich, M., Albrecht, M., Alexander, M., Asmussen, K., Ballico, M., Behler, K., Behringer, K., Bosch, H. S., Brambilla, M., Carlson, A., Coster, D., Cupido, L., DeBlank, H. J., De Pena Hempel, S., Deschka, S., Dorn, C., Drube, R., Dux, R., Eberhagen, A., Engelhardt, W., Fahrbach, H. U., Feist, H. U., Fieg, D., Fußmann, G., Gehre, O., Gernhardt, J., Ignacz, P., Jüttner, B., Junker, W., Kass, T., Kiemer, K., Kollotzek, H., Kornherr, M., Krieger, K., Kurzan, B., Lang, R., Laux, M., Manso, M. E., Maraschek, M., Mayer, H. M., McCarthy, P. J., Meisel, D., Merkel, R., Murmann, H., Napiontek, B., Naujoks, D., Neu, G., Neu, R., Noterdaeme, J. M., Pautasso, G., Poschenrieder, W., Raupp, G., Richter, H., Richter, T., Röhr, H., Roth, J., Salmon, N., Salzmann, H., Sandmann, W., Schilling, H. B., Schneider, H., Schneider, R., Schneider, W., Schönmann, K., Schramm, G., Schumacher, U., Schweinzer, J., Seidel, U., Serra, F., Silva, A., Sokoll, M., Speth, E., Stäbler, A., Steuer, K. H., Streibl, B., Treutterer, W., Ulrich, M., Varela, P., Vernickel, H., Vollmer, O., Wedler, H., Wenzel, U., Wesner, F., Wunderlich, R., Zasche, D. and Zehrfeld, H. P. (1995) 'Observation of continuous divertor detachment in H-mode discharges in ASDEX upgrade', Physical Review Letters, 74(21), 4217-4220 (4pp). doi: 10.1103/PhysRevLett.74.4217
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© 1995, American Physical Society