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510 results on '"Neuhauser, J."'

9. Local 3D perturbation experiments for probing the ELM stability

Author

Lang, P. T., Hobirk, J., Horton, L. D., Kallenbach, A., Maraschek, M., Mertens, V., Neu, R., Neuhauser, J., Putterich, T., Schneider, W., Sips, A. C. C., Suttrop, W., Bucalossi, J., Fattorini, L., Manso, M. E., Gal, K., Kalvin, S., Kocsis, G., Veres, G., Lister, J., Martin, Y., and ASDEX Upgrade Team

Published
2005
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13. Development of ICRF wall conditioning technique on divertor-type tokamaks ASDEX Upgrade and JET

Author

Lyssoivan, A., Hartmann, D.A., Noterdaeme, J.-M., Koch, R., Bobkov, V., Blackman, T., Braun, F., Cox, M., de Vries, P., Esser, H.G., Fahrbach, H.-U., Gafert, J., Gauthier, E., Gehre, O., Graham, M., Haas, G., Huber, A., Lawson, K., Lomas, P.J., Mantsinen, M., Matthews, G., Mayoral, M.-L., Meigs, A., Mertens, Ph., Mertens, V., Monakhov, I., Neuhauser, J., Philipps, V., Rohde, V., Santala, M., Suttrop, W., Walden, A., Eester, D. Van, and Wesner, F.

Published
2005
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18. Possible divertor solutions for a fusion reactor. Part I. Physical aspects based on present day divertor operation11In association with The ASDEX Upgrade-, NI- and ICRH Teams MPI für Plasmaphysik, Garching and Berlin, Germany.

Author

Kallenbach, A., primary, Bosch, H.-S., additional, de Peña Hempel, S., additional, Dux, R., additional, Kaufmann, M., additional, Mertens, V., additional, Neuhauser, J., additional, Suttrop, W., additional, and Zohm, H., additional

Published
1997
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29. Particle exhaust in radiative divertor experiments

Author

Bosch, H. -S, David Coster, Dux, R., Fuchs, C., Haas, G., Herrmann, A., Hirsch, S., Kallenbach, A., Neuhauser, J., Schneider, R., Schweinzer, J., and Weinlich, M.

Subjects
Nuclear and High Energy Physics, Nuclear Energy and Engineering, General Materials Science
Published
1997
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36. Axially Symmetric Divertor Experiment (ASDEX) Upgrade Team (vol 81, 033507, 2010)

Author

Adamek, J., Angioni, C., Antar, G., Atanasiu, C.V., Balden, M., Becker, W., Behler, K., Behringer, K., Bergmann, A., Bilato, R., Bobkov, V., Boom, J., Bottino, A., Brambilla, M., Braun, F., Brüdgam, M., Buhler, A., Chankin, A., Classen, I., Conway, G.D., Coster, D.P., de Marne, P., D'Inca, R., Dodt, D., Doerk-Bendig, H., Drube, R., Dux, R., Eich, T., Endstrasser, N., Engelhardt, K., Fahrbach, H.-U., Fattorini, L., Fischer, R., Forest, C., Fuchs, J.C., Gal, K., Munoz, M.G., Adamov, M.G., Giannone, L., Görler, L., Gori, S., da Graca, S., Greuner, H., Gruber, O., Gude, A., Günter, S., Haas, G., Hammer, N., Hauff, T., Heinemann, B., Herrmann, A., Hicks, N., Hobirk, J., Hölzl, M., Holtum, D., Hopf, C., Huart, M., Igochine, V., Janzer, M., Jenko, F., Kagarmanov, A., Kallenbach, A., Kammel, A., Kalvin, S., Kardaun, O., Kaufmann, M., Kick, M., Kirk, A., Klingshirn, H.-J., Koscis, G., Kollotzek, H., Konz, C., Krieger, K., Kurki-Suonio, T., Kurzan, B., Lackner, K., Lang, P.T., Langer, B., Lauber, P., Laux, M., Leuterer, F., Likonen, J., Liu, L., Lohs, A., Lunt, T., Lyssoivan, A., Mank, K., Manso, M.-E., Mantsinen, M., Maraschek, M., Martin, P., Mayer, M., McCarthy, P., McCormick, K., McDermott, R., Meister, H., Meo, Fernando, Merkel, P., Merkel, R., Mertens, V., Merz, F., Meyer, H., Mlynek, A., Monaco, F., Müller, H.-W., Münich, M., Murmann, H., Neu, G., Neu, R., Neuhauser, J., Nold, B., Noterdaeme, J.M., Pautasso, G., Pereverzev, G., Poli, E., Potzel, S., Püschel, M., Pütterich, T., Raupp, G., Reich, M., Reiter, B., Ribeiro, T., Riedl, R., Rohde, V., Roth, J., Rott, M., Ryter, F., Sandmann, W., Santos, J., Sassenberg, K., Sauter, P., Scarabosio, A., Schall, G., Schmid, K., Schneider, P., Schneider, W., Schrittwieser, R., Schweinzer, J., Scott, B., Seidel, U., Sempf, M., Serra, F., Sertoli, M., Siccinio, M., Sigalov, A., Silva, A., Speth, E., Stäbler, A., Stadler, R., Steuer, K.-H., Stober, J., Streibl, B., Strumberger, E., Suttrop, W., Tardini, G., Tichmann, C., Treutterer, W., Urso, L., Vainonen-Ahlgren, E., Varela, P., Vorpahl, C., Wagner, D., Wigger, C., Wischmeier, M., Wolfrum, E., Würsching, E., Yadikin, D., Yu, Q., Zasche, D., Zehetbauer, T., Zilker, M., and Zohm, H.

Subjects
Fusion energy, Fusionsenergi, Fusionsenergiforskning
Published
2010
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37. Overview of ASDEX upgrade results

Author

Zohm H., Adamek J., Angioni C., Antar G., Atanasiu C. V., Balden M., Becker W., Behler K., Behringer K., Bergmann A., Bertoncelli T., Bilato R., Bobkov V., Boom J., Bottino A., Brambilla M., Braun F., Bruedgam M., Buhler A., Chankin A., Classen I., Conway G. D., Coster D. P., de Marne P., D'Inca R., Drube R., Dux R., Eich T., Engelhardt K., Esposito B., Fahrbach H-U., Fattorini L., Fink J., Fischer R., Flaws A., Foley M., Forest C., Fuchs J. C., Gal K., Munoz M. Garcia, Adamov M. Gemisic, Giannone L., Goerler T., Gori S., da Graca S., Granucci G., Greuner H., Gruber O., Gude A., Guenter S., Haas G., Hahn D., Harhausen J., Hauff T., Heinemann B., Herrmann A., Hicks N., Hobirk J., Hoelzl M., Holtum D., Hopf C., Horton L., Huart M., Igochine V., Janzer M., Jenko F., Kallenbach A., Kalvin S., Kardaun O., Kaufmann M., Kick M., Kirk A., Klingshirn H-J., Koscis G., Kollotzek H., Konz C., Krieger K., Kurki-Suonio, Kurzan B., Lackner K., Lang P. T., Langer B., Lauber P., Laux M., Leuterer F., Likonen J., Liu L., Lohs A., Lunt T., Lyssoivan A., Maggi C. F., Manini A., Mank K., Manso M-E., Mantsinen M., Maraschek M., Martin P., Mayer M., McCarthy P., McCormick K., Meister H., Meo F., Merkel P., Merkel R., Mertens V., Merz F., Meyer H., Mlynek A., Monaco F., Mueller H-W., Muenich M., Murmann H., Neu G., Neu R., Neuhauser J., Nold B., Noterdaeme J-M., Pautasso G., Pereverzev G., Poli E., Potzel, Pueschel M., Puetterich T., Pugno R., Raupp G., Reich M., Reiter B., Ribeiro T., Riedl R., Rohde V., Roth J., Rott M., Ryter F., Sandmann W., Santos J., Sassenberg, Sauter P., Scarabosio A., Schall G., Schilling H-B., Schirmer J., Schmid A., Schmid K., Schneider W., Schramm G., Schrittwieser R., Schustereder W., Schweinzer J., Schweizer S., Scott B., Seidel U., Sempf M., Serra F., Sertoli M., Siccinio M., Sigalov A., Silva A., Sips C. C., Speth E., Staebler A., Stadler R., Steuer K-H., Stober J., Streibl B., Strumberger E., Suttrop W., Tardini G., Tichmann C., Treutterer W., Troester C., Urso L., Vainonen-Ahlgren E., Varela P., Vermare L., Volpe F., Wagner D., Wigger C., Wischmeier M., Wolfrum E., Wuersching E., Yadikin D., Yu Q., Zasche D., Zehetbauer T., and Zilker M.

Subjects
Nuclear and High Energy Physics, Materials science, Nuclear engineering, Condensed Matter Physics, 7. Clean energy, 01 natural sciences, 010305 fluids & plasmas, ASDEX Upgrade, ITER, 0103 physical sciences, tokamak physics, 010306 general physics, DEMO, nuclear fusion
Abstract

ASDEX Upgrade was operated with a fully W-covered wall in 2007 and 2008. Stationary H-modes at the ITER target values and improved H-modes with H up to 1.2 were run without any boronization. The boundary conditions set by the full W wall (high enough ELM frequency, high enough central heating and low enough power density arriving at the target plates) require significant scenario development, but will apply to ITER as well. D retention has been reduced and stationary operation with saturated wall conditions has been found. Concerning confinement, impurity ion transport across the pedestal is neoclassical, explaining the strong inward pinch of high-Z impurities in between ELMs. In improved H-mode, the width of the temperature pedestal increases with heating power, consistent with a β1/2pol,ped scaling. In the area of MHD instabilities, disruption mitigation experiments using massive Ne injection reach volume averaged values of the total electron density close to those required for runaway suppression in ITER. ECRH at the q = 2 surface was successfully applied to delay density limit disruptions. The characterization of fast particle losses due to MHD has shown the importance of different loss mechanisms for NTMs, TAEs and also beta-induced Alfven eigenmodes (BAEs). Specific studies addressing the first ITER operational phase show that O1 ECRH at the HFS assists reliable low-voltage breakdown. During ramp-up, additional heating can be used to vary li to fit within the ITER range. Confinement and power threshold in He are more favourable than in H, suggesting that He operation could allow us to assess H-mode operation in the non-nuclear phase of ITER operation.

Published
2009
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38. Fluid code simulations of radial electric field in the scrape-off layer of JET

Author

Chankin, A. V., Coster, D. P., Corrigan, G., Erents, S. K., Fundamenski, W., Kallenbach, A., Lackner, K., Neuhauser, J., Pitts, R., Team, ASDEX Upgrade, and Contributors, JET-EFDA

Subjects
Sol, Flow, Plasmas, Particle, Divertor Tokamaks, Drifts, Profiles, Parallel
Abstract

Recent simulations of JET and ASDEX Upgrade plasmas with EDGE2D and SOLPS, respectively, showed that upstream radial electric field in the scrape-off layer (SOL) is substantially below values expected from simple estimates, based on the effects of the potential Debye sheath drop at the target and thermoelectric force (Chankin et al 2007 Nucl. Fusion 47 479). In this paper, dedicated EDGE2D-Nimbus modelling of JET plasmas aimed at identification of key mechanisms responsible for the formation of the radial electric field (E-r) in the main SOL of high recycling divertor plasmas is described. Code runs with different upstream density and input power levels were carried out. The results of the modelling identify the main reason why the predicted E-r values in the SOL are always too low compared with the simple estimates, which is the contribution from the -del parallel to p(e)/n(e)e term in the equation for parallel electric field (p(e) and n(e)-electron pressure and density). At the same time, it still remains unclear why experimental measurements in tokamak SOLs reveal fairly large E-r values that are in reasonable agreement with the simple estimates. This discrepancy might be attributed to missing elements in the present 2D edge fluid codes, such as the role of plasma fluctuations or non-local kinetic effects of parallel plasma transport from the SOL to the divertor.

Published
2009

42. Plasma wall interaction and its implication in an all tungsten divertor tokamak. Invited Paper

Author

Neu, R., Balden, M., Bobkov, V., Dux, R., Gruber, O., Herrmann, A., Kallenbach, A., Kaufmann, M., Maggi, C. F., Maier, H., Müller, H. W., Pütterich, T., Pugno, R., Rohde, V., Sips, A. C. C., Stober, J., Suttrop, W., Angioni, C., Atanasiu, C. V., Becker, W., Behler, K., Behringer, K., Bergmann, A., Bertoncelli, T., Bilato, R., Bottino, A., Brambilla, M., Braun, F., Buhler, A., Chankin, A., Conway, G., Coster, D. P., de Marne, P., Dietrich, S., Dimova, K., Drube, R., Eich, T., Engelhardt, K., Fahrbach, H.-U., Fantz, U., Fattorini, L., Fink, J., Fischer, R., Flaws, A., Franzen, P., Fuchs, J. C., Gal, K., Garcia Munoz, M., Gemisic-Adamov, M., Giannone, L., Gori, S., da Graca, S., Greuner, H., Gude, A., Günter, S., Haas, G., Harhausen, J., Heinemann, B., Hicks, N., Hobirk, J., Holtum, D., Hopf, C., Horton, L., Huart, M., Igochine, V., Kalvin, S., Kardaun, O., Kick, M., Kocsis, G., Kollotzek, H., Konz, C., Krieger, K., Kurki-Suonio, T., Kurzan, B., Lackner, K., Lang, P. T., Lauber, P., Laux, M., Likonen, J., Liu, L., Lohs, A., Mank, K., Manini, A., Manso, M.-E., Maraschek, M., Martin, P., Martin, Y., Mayer, M., McCarthy, P., McCormick, K., Meister, H., Meo, F., Merkel, P., Merkel, R., Mertens, V., Merz, F., Meyer, H., Mlynek, M., Monaco, F., Murmann, H., Neu, G., Neuhauser, J., Nold, B., Noterdaeme, J.-M., Pautasso, G., Pereverzev, G., Poli, E., Pueschel, M., Raupp, G., Reich, M., Reiter, B., Ribeiro, T., Riedl, R., Roth, J., Rott, M., Ryter, F., Sandmann, W., Santos, J., Sassenberg, K., Scarabosio, A., Schall, G., Schirmer, J., Schmid, A., Schneider, W., Schramm, G., Schrittwieser, R., Schustereder, W., Schweinzer, J., Schweizer, S., Scott, B., Seidel, U., Serra, F., Sertoli, M., Sigalov, A., Silva, A., Speth, E., Stäbler, A., Steuer, K.-H., Strumberger, E., Tardini, G., Tichmann, C., Treutterer, W., Tröster, C., Urso, L., Vainonen-Ahlgren, E., Varela, P., Vermare, L., Wagner, D., Wischmeier, M., Wolfrum, E., Würsching, E., Yadikin, D., Yu, Q., Zasche, D., Zehetbauer, T., Zilker, M., and Zohm, H.

Published
2007

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