Search Results - "Puetterich, T."

Evidence for strong inversed shear of toroidal rotation at the edge-transport barrier in the ASDEX upgrade by Pütterich, T, Wolfrum, E, Dux, R, Maggi, C F

“…The toroidal rotation of H-mode plasmas in ASDEX Upgrade is studied in the outermost 5 cm of the confined plasma. The projection of the rotation velocity along…”
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Mitigation of edge localised modes with magnetic perturbations in ASDEX Upgrade by Suttrop, W., Fuchs, J.C., Fischer, R., Giannone, L., Herrmann, A., McDermott, R.M., Maraschek, M., Mlynek, A., Müller, H.W., Lang, P.T., Pütterich, T., Rott, M., Vierle, T., Viezzer, E., Wolfrum, E.

“…[Display omitted] ► ELM mitigation is observed with n=1, n=2 and n=4 perturbations. ► For n=1 and n=2, both field aligned (resonant) and non-aligned…”
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First analysis of tungsten transport in the edge of Tore Supra plasmas by Meyer, O., Kočan, M., Gunn, J., Pütterich, T., Devynck, P., Guirlet, R., Lunt, T., Mazon, D., Vezinet, D., Pascal, J.-Y., Vartanian, S.

“…A series of Tungsten (W) injections was performed in the Tore Supra (TS) tokamak during the 2011 experimental campaign. The first goal of this experiment was…”
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First observation of edge localized modes mitigation with resonant and nonresonant magnetic perturbations in ASDEX Upgrade by Suttrop, W, Eich, T, Fuchs, J C, Günter, S, Janzer, A, Herrmann, A, Kallenbach, A, Lang, P T, Lunt, T, Maraschek, M, McDermott, R M, Mlynek, A, Pütterich, T, Rott, M, Vierle, T, Wolfrum, E, Yu, Q, Zammuto, I, Zohm, H

“…First experiments with nonaxisymmetric magnetic perturbations, toroidal mode number n=2, produced by newly installed in-vessel saddle coils in the ASDEX…”
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Overview of initial negative triangularity plasma studies on the ASDEX Upgrade tokamak by Happel, T., Pütterich, T., Told, D., Dunne, M., Fischer, R., Hobirk, J., McDermott, R.M., Plank, U., the, ASDEX Upgrade Team

“…Abstract An overview of results of negative triangularity (NT) studies from the ASDEX Upgrade tokamak (AUG) is given. Moderate values of the triangularity in…”
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Poloidal structure of the edge parallel flow in H-mode, L-mode and I-mode confinement regimes by Cruz-Zabala, D.J., Viezzer, E., Cano-Megias, P., Cavedon, M., Dux, R., Plank, U., Pütterich, T., McKay, K., Rodriguez-Gonzalez, A., Garcia-Munoz, M.

“…Abstract Impurity profiles have been measured with the edge high field side (HFS) and low field side (LFS) charge exchange recombination spectroscopy suite at…”
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Comparison of momentum transport in matched hydrogen and deuterium H-mode plasmas in ASDEX Upgrade by Zimmermann, C.F.B., McDermott, R.M., Angioni, C., Duval, B.P., Dux, R., Fable, E., Salmi, A., Stroth, U., Tala, T., Tardini, G., Pütterich, T.

“…Abstract Advanced momentum transport analysis is used to study matched hydrogen (H) and deuterium (D) plasmas in the core of ASDEX Upgrade. The aim is to…”
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Experimental evidence of magnetic flux pumping in ASDEX upgrade by Burckhart, A., Bock, A., Fischer, R., Pütterich, T., Stober, J., Günter, S., Gude, A., Hobirk, J., Hölzl, M., Igochine, V., Krebs, I., Maraschek, M., Reisner, M., Schramm, R., Zohm, H.

“…Abstract In high- β scenarios with on-axis co-current electron cyclotron current drive, which normally lowers q 0 below unity, the absence of sawteeth suggests…”
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Experimental determination of the three components of toroidal momentum transport in the core of a tokamak plasma by Zimmermann, C.F.B., McDermott, R.M., Angioni, C., Duval, B.P., Dux, R., Fable, E., Luda, T., Salmi, A., Stroth, U., Tala, T., Tardini, G., Pütterich, T.

“…Abstract A new approach to infer the momentum transport in tokamak core plasmas via perturbation experiments is presented. For the first time, the analysis…”
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Intrinsic toroidal rotation, density peaking, and turbulence regimes in the core of tokamak plasmas by Angioni, C, McDermott, R M, Casson, F J, Fable, E, Bottino, A, Dux, R, Fischer, R, Podoba, Y, Pütterich, T, Ryter, F, Viezzer, E

“…Observations in the ASDEX Upgrade tokamak show a correlation between the gradient of the intrinsic toroidal rotation profile and the logarithmic gradient of…”
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Overview on plasma operation with a full tungsten wall in ASDEX Upgrade by Neu, R., Kallenbach, A., Balden, M., Bobkov, V., Coenen, J.W., Drube, R., Dux, R., Greuner, H., Herrmann, A., Hobirk, J., Höhnle, H., Krieger, K., Kočan, M., Lang, P., Lunt, T., Maier, H., Mayer, M., Müller, H.W., Potzel, S., Pütterich, T., Rapp, J., Rohde, V., Ryter, F., Schneider, P.A., Schweinzer, J., Sertoli, M., Stober, J., Suttrop, W., Sugiyama, K., van Rooij, G., Wischmeier, M.

“…Operation with all tungsten plasma facing components has become routine in ASDEX Upgrade. The conditioning of the device is strongly simplified and short glow…”
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Plasma-wall interaction and plasma behaviour in the non-boronised all tungsten ASDEX Upgrade by Dux, R., Bobkov, V., Herrmann, A., Janzer, A., Kallenbach, A., Neu, R., Mayer, M., Müller, H.W., Pugno, R., Pütterich, T., Rohde, V., Sips, A.C.C.

“…ASDEX Upgrade has successfully started the second experimental campaign with a full tungsten coverage of the plasma facing components and without using a…”
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Negative triangularity scenarios: from TCV and AUG experiments to DTT predictions by Mariani, A., Aucone, L., Balestri, A., Mantica, P., Merlo, G., Ambrosino, R., Bagnato, F., Balbinot, L., Ball, J., Bolzonella, T., Brioschi, D., Casiraghi, I., Castaldo, A., Coda, S., Frassinetti, L., Fusco, V., Happel, T., Hobirk, J., Innocente, P., McDermott, R.M., Muscente, P., Pütterich, T., Sauter, O., Sciortino, F., Vallar, M., Vanovac, B., Vianello, N., Vlad, G., Zimmermann, C.F.B.

“…Abstract Experiments, gyrokinetic simulations and transport predictions were performed to investigate if a negative triangularity (NT) L-mode option for the…”
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Plasma surface interactions in impurity seeded plasmas by Kallenbach, A., Balden, M., Dux, R., Eich, T., Giroud, C., Huber, A., Maddison, G.P., Mayer, M., McCormick, K., Neu, R., Petrie, T.W., Pütterich, T., Rapp, J., Reinke, M.L., Schmid, K., Schweinzer, J., Wolfe, S.

“…With tokamak devices developing towards higher heating powers, and carbon plasma facing components being increasingly replaced by high-Z materials like…”
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ELM induced tungsten melting and its impact on tokamak operation by Coenen, J.W., Arnoux, G., Bazylev, B., Matthews, G.F., Jachmich, S., Balboa, I., Clever, M., Dejarnac, R., Coffey, I., Corre, Y., Devaux, S., Frassinetti, L., Gauthier, E., Horacek, J., Knaup, M., Komm, M., Krieger, K., Marsen, S., Meigs, A., Mertens, Ph, Pitts, R.A., Puetterich, T., Rack, M., Stamp, M., Sergienko, G., Tamain, P., Thompson, V.

“…In JET-ILW dedicated melt exposures were performed using a sequence of 3MA/2.9T H-Mode JET pulses with an input power of PIN=23MW, a stored energy of ∼6MJ and…”
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Power exhaust by SOL and pedestal radiation at ASDEX Upgrade and JET by Bernert, M., Wischmeier, M., Huber, A., Reimold, F., Lipschultz, B., Lowry, C., Brezinsek, S., Dux, R., Eich, T., Kallenbach, A., Lebschy, A., Maggi, C., McDermott, R., Pütterich, T., Wiesen, S.

“…•Stable operation with fully detached targets in all-metal devices demonstrated•Power exhaust achieved at highest heat fluxes with impurity seeding of N, Ne…”
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ELM flushing and impurity transport in the H-mode edge barrier in ASDEX Upgrade by Pütterich, T., Dux, R., Janzer, M.A., McDermott, R.M.

“…Density profiles of He2+, C6+, Ne10+ and Ar16+ are measured at ASDEX Upgrade with high temporal (1.9ms) and radial resolution (>3mm) using CXRS. This allows…”
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Tungsten transport and sources control in JET ITER-like wall H-mode plasmas by Fedorczak, N., Monier-Garbet, P., Pütterich, T., Brezinsek, S., Devynck, P., Dumont, R., Goniche, M., Joffrin, E., Lerche, E., Lipschultz, B., de la Luna, E., Maddison, G., Maggi, C., Matthews, G., Nunes, I., Rimini, F., Solano, E.R., Tamain, P., Tsalas, M., de Vries, P.

“…A set of discharges performed with the JET ITER-like wall is investigated with respect to control capabilities on tungsten sources and transport. In attached…”
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Neutral pressure and separatrix density related models for seed impurity divertor radiation in ASDEX Upgrade by Kallenbach, A., Bernert, M., Dux, R., Eich, T., Henderson, S.S., Pütterich, T., Reimold, F., Rohde, V., Sun, H.J.

“…•Outer divertor radiation database over broad H-mode data range in ASDEX Upgrade.•Radiation described by two different scalings, relating to impurity neutral…”
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Trends of W behavior in ICRF assisted discharges in ASDEX Upgrade by Czarnecka, A., Bobkov, V., Dux, R., Pütterich, T., Sertoli, M.

“…During Ion Cyclotron Range of Frequencies (ICRF) operation with metallic plasma facing components, plasma wall interaction processes are modified, which needs…”
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