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1. Influence of temperature fluctuations on plasma turbulence investigations with Langmuir probes

Author

Nold, B., Ribeiro, T. T., Ramisch, M., Huang, Z., Müller, H. W., Scott, B. D., Stroth, U., and Team, ASDEX Upgrade

Subjects
Physics - Plasma Physics
Abstract

The reliability of Langmuir probe measurements for plasma-turbulence investigations is studied on GEMR gyro-fluid simulations and compared with results from conditionally sampled I-V characteristics as well as self-emitting probe measurements in the near scrape-off layer of the tokamak ASDEX Upgrade. In this region, simulation and experiment consistently show coherent in-phase fluctuations in density, plasma potential and also in electron temperature. Ion-saturation current measurements turn out to reproduce density fluctuations quite well. Fluctuations in the floating potential, however, are strongly influenced by temperature fluctuations and, hence, are strongly distorted compared to the actual plasma potential. These results suggest that interpreting floating as plasma-potential fluctuations while disregarding temperature effects is not justified near the separatrix of hot fusion plasmas. Here, floating potential measurements lead to corrupted results on the ExB dynamics of turbulent structures in the context of, e.g., turbulent particle and momentum transport or instability identification on the basis of density-potential phase relations.

Published
2011
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4. Definition of a Technology Validation Mission for P-band Reflectometry using Signals of Opportunity

Author

Garrison, J. L, Piepmeier, Jeffrey R, Shah, R, Vega, M. A, Spencer, D. A, Banting, R, Raymond, J. C, Nold, B, Larsen, K, and Bindlish, Rajat

Subjects
Earth Resources And Remote Sensing
Abstract

Root-Zone Soil Moisture (RZSM) (moisture profile in the top meter of soil) and Snow Water Equivalent (SWE) (total snow pack water content) are identified as priority target variables in the ESAS 2017 decadal survey [1] with critical roles in hydrology and water management. RZSM estimates are vital for understanding multiple Earth system processes and forecasting (for example, droughts [2]). Simultaneous knowledge of surface and RZSM could enable a breakthrough in estimating key unobserved hydrologic fluxes and reduce uncertainty in net ecosystem exchange (NEE), carbon balance [3] discharge estimates, and crop yield forecasts [4] .With the high albedo and insulating properties of snow, monitoring, SWE accumulation would provide a key constraint on the potential runoff during spring ablation while monitoring SWE disappearance rates would provide a key constraint on SWE partition into runoff vs. infiltration/recharge. [5] demonstrated that knowledge of early-spring SWE generally contributes most to streamflow forecast skill in the Western U.S. SWE is also a source of water storage that provides the water resources during spring snowmelt. Despite such potentially transformative contributions, accurate RZSM and SWE measurements are unattainable with current technology. While active/passive L-band methods (e.g. SMAP, SMOS) can reliably retrieve surface soil moisture in the top 5 cm of soil [6], [7]. RZSM estimates are only available through model assimilation of brightness temperatures with a radiative transfer and land surface models [8]. SWE estimation uses multi-frequency passive microwave techniques (e.g. [9]-[11]), which have significant problems with deeper snow and in forested and mountainous environments [12]. Signals of opportunity (SoOp) in P-band (200-400 MHz) is a new remote sensing technique with the capability of estimating both essential hydrologic variables, RZSM and SWE, circumventing many of the aforementioned limitations under all weather conditions day and night. SoOp is the re-utilization of existing powerful satellite transmissions within bands allocated for communications or navigation. P-band SoOp sensitivity to soil moisture has been demonstrated in an airborne experiment over Oklahoma in 2016 [13]. Recent theory [14] and experiments [15] have also confirmed that the reflection coefficient phase is proportional to SWE.

Published
2019

9. SNOOPI: Demonstrating P-Band Reflectometry from Orbit

Author

Garrison, J. L., primary, Shah, R., additional, Nold, B., additional, Mansell, J. R., additional, Vega, M. A., additional, Raymond, J. C., additional, Bindlish, R., additional, Kurum, M., additional, Piepmeier, J., additional, Kim, S., additional, Banting, R., additional, and Larsen, K., additional

Published
2021
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14. Recent ASDEX Upgrade research in support of ITER and DEMO

Author

Zohm, H, Ahn, J, Aho Mantila, L, Äkäslompolo, S, Angioni, C, Asunta, O, de Baar, M, Balden, M, Barrera Orte, L, Behler, K, Belapure, J, Bergmann, A, Bernardo, J, Bernert, M, Beurskens, M, Biancalani, A, Bilato, R, Birkenmeier, G, Bobkov, V, Bock, A, Bogomolov, A, Bolzonella, T, Boom, J, Böswirth, B, Bottereau, C, Bottino, A, van den Brand, H, Braun, F, Brezinsek, S, Brochard, F, Buhler, A, Burckhart, A, Camenen, Y, Carvalho, P, Carrasco, G, Cazzaniga, C, Carralero, D, Casali, L, Cavedon, M, Challis, C, Chankin, A, Chapman, I, Clairet, F, Classen, I, Coda, S, Coelho, R, Coenen, J, Colas, L, Conway, G, Costea, S, Coster, D, CROCI, GABRIELE, Cseh, G, Czarnecka, A, Day, C, de Marné, P, Denner, P, D'Inca, R, Douai, D, Drube, R, Dunne, M, Duval, B, Dux, R, Eich, T, Elgeti, S, Engelhardt, K, Ertl, K, Esposito, B, Fable, E, Fantz, U, Faugel, H, Felici, F, Fietz, S, Figueredo, A, Fischer, R, Ford, O, Franzen, P, Frassinetti, L, Fröschle, M, Fuchert, G, Fünfgelder, H, Fuchs, J, Gál, K, Garavaglia, S, Garcia Muñoz, M, Geiger, B, Giannone, L, Giovannozzi, E, Gleason González, C, Görler, T, Goodman, T, GORINI, GIUSEPPE, da Graca, S, Gräter, A, Granucci, G, Greuner, H, Grießhammer, J, Groth, M, Gude, A, Günter, S, Guimarais, L, Haas, G, Hakola, A, Happel, T, Harrison, J, Hatch, D, Hauer, V, Hauff, T, Heinemann, B, Heinzel, S, Hellsten, T, Hennequin, P, Herrmann, A, Heyn, E, Hobirk, J, Hölzl, M, Höschen, T, Holm, J, Hopf, C, Hoppe, F, Horvath, L, Houben, A, Huber, A, Igochine, V, Ilkei, T, Jacob, W, Jacobsen, A, Jacquot, J, Janzer, M, Jaulmes, F, Jenko, F, Jensen, T, Joffrin, E, Käsemann, C, Kallenbach, A, Kálvin, S, Kantor, M, Kappatou, A, Kardaun, O, Karhunen, J, Kim, D, Kimmig, S, Kirk, A, J, Klingshirn, H, Kocan, M, Koch, F, Kocsis, G, Köhn, A, Köppen, M, Kötterl, J, Koslowski, R, Koubiti, M, Kraus, M, Krieger, K, Krivska, A, Kogut, D, Krämer Flecken, A, Kurki Suonio, T, Kurzan, B, Lackner, K, Laggner, F, Lang, P, Lauber, P, Lazányi, N, Lazaros, A, Lebschy, A, Leuterer, F, Liang, Y, Linsmeier, h, Lipschultz, B, Litnovski, A, Lohs, A, Luhmann, N, Lunt, T, Lyssoivan, A, Madsen, J, Maier, H, Maj, O, Mailloux, J, Maljaars, E, Mancini, A, Manhard, A, Mank, K, E, Manso, M, Mantica, P, Mantsinen, M, Manz, P, Maraschek, M, Markina, E, Martens, C, Martin, P, Mayer, A, Mayer, M, Mazon, D, McCarthy, P, McDermott, R, Meisl, G, Meister, H, Medvedeva, A, Merkel, P, Merkel, R, Mertens, V, Meyer, H, Meyer, O, Milanesio, D, Miettunen, J, Mlynek, A, Monaco, F, Moro, A, Moseev, D, Müller, H, Müller, S, Münich, M, Nabais, F, Nemes Czopf, A, Neu, G, Neu, R, Nielsen, A, Nikolaeva, V, Nielsen, S, NOCENTE, MASSIMO, Nold, B, M, Noterdaeme, J, Nowak, S, Oberkofler, M, Ochoukov, R, Odstrcil, T, Papp, G, Park, H, Pau, A, Pautasso, G, Penzel, F, Petersson, P, Piovesan, P, Piron, C, Plaum, B, Plöckl, B, Plyusnin, V, Podoba, Y, Pokol, G, Pompon, F, Poli, E, Polozhiy, K, Porte, L, Potzel, S, Preuss, R, Prisiazhniuk, D, Pütterich, T, Ramish, M, Rapson, C, Rasmussen, J, Rathgeber, S, Raupp, G, Réfy, D, Reich, M, Reimold, F, Reinke, M, Ribeiro, T, Riedl, R, Rittich, D, Rocchi, G, Rodriguez Ramos, M, Rohde, V, Roth, J, Rott, M, Rubel, M, Ryter, F, Saarelma, S, Salewski, M, Salmi, A, Sanchis Sanchez, L, Santos, G, Santos, J, Sauter, O, Scarabosio, A, Schall, G, Schmid, K, Schmitz, O, Schneider, P, Schneider, W, Schneller, M, Schrittwieser, R, Schubert, M, Schwarz Selinger, T, Schweinzer, J, Scott, B, Sehmer, T, Sertoli, M, Shalpegin, A, Sias, G, Siccinio, M, Sieglin, B, Sigalov, A, Silva, A, Silva, C, Simon, P, Simpson, J, Snicker, A, Sommer, F, Sozzi, C, Spolaore, M, Stejner, M, Stober, J, Stobbe, F, Stroth, U, Strumberger, E, Sugiyama, K, J, Sun, Suttrop, W, Szepesi, T, Tál, B, Tala, T, Tardini, G, Tichmann, C, Told, D, Tophøj, L, Tudisco, O, von Toussaint, U, Trevisan, G, Treutterer, W, Tripský, M, Valisa, M, Valovic, M, Varela, P, Varoutis, S, Vezinet, D, Vianello, N, Vicente, J, Vierle, T, Viezzer, E, Vorpahl, C, Wagner, D, Wang, X, Wauters, T, Weidl, I, Weiland, M, Weller, A, Wenninger, R, Wieland, B, Wiesinger, M, Willensdorfer, M, Wiringer, B, Wischmeier, M, Wolf, R, Wolfrum, E, Wünderlich, D, Würsching, E, Yang, Z, Yu, Q, Zammuto, I, Zarzoso, D, Zasche, D, van Zeeland, M, Zehetbauer, T, Zilker, M., Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, European Commission (EC), Science and Technology of Nuclear Fusion, Zohm, H, Ahn, J, Aho Mantila, L, Äkäslompolo, S, Angioni, C, Asunta, O, de Baar, M, Balden, M, Barrera Orte, L, Behler, K, Belapure, J, Bergmann, A, Bernardo, J, Bernert, M, Beurskens, M, Biancalani, A, Bilato, R, Birkenmeier, G, Bobkov, V, Bock, A, Bogomolov, A, Bolzonella, T, Boom, J, Böswirth, B, Bottereau, C, Bottino, A, van den Brand, H, Braun, F, Brezinsek, S, Brochard, F, Buhler, A, Burckhart, A, Camenen, Y, Carvalho, P, Carrasco, G, Cazzaniga, C, Carralero, D, Casali, L, Cavedon, M, Challis, C, Chankin, A, Chapman, I, Clairet, F, Classen, I, Coda, S, Coelho, R, Coenen, J, Colas, L, Conway, G, Costea, S, Coster, D, Croci, G, Cseh, G, Czarnecka, A, Day, C, de Marné, P, Denner, P, D'Inca, R, Douai, D, Drube, R, Dunne, M, Duval, B, Dux, R, Eich, T, Elgeti, S, Engelhardt, K, Ertl, K, Esposito, B, Fable, E, Fantz, U, Faugel, H, Felici, F, Fietz, S, Figueredo, A, Fischer, R, Ford, O, Franzen, P, Frassinetti, L, Fröschle, M, Fuchert, G, Fünfgelder, H, Fuchs, J, Gál, K, Garavaglia, S, Garcia Muñoz, M, Geiger, B, Giannone, L, Giovannozzi, E, Gleason González, C, Görler, T, Goodman, T, Gorini, G, da Graca, S, Gräter, A, Granucci, G, Greuner, H, Grießhammer, J, Groth, M, Gude, A, Günter, S, Guimarais, L, Haas, G, Hakola, A, Happel, T, Harrison, J, Hatch, D, Hauer, V, Hauff, T, Heinemann, B, Heinzel, S, Hellsten, T, Hennequin, P, Herrmann, A, Heyn, E, Hobirk, J, Hölzl, M, Höschen, T, Holm, J, Hopf, C, Hoppe, F, Horvath, L, Houben, A, Huber, A, Igochine, V, Ilkei, T, Jacob, W, Jacobsen, A, Jacquot, J, Janzer, M, Jaulmes, F, Jenko, F, Jensen, T, Joffrin, E, Käsemann, C, Kallenbach, A, Kálvin, S, Kantor, M, Kappatou, A, Kardaun, O, Karhunen, J, Kim, D, Kimmig, S, Kirk, A, J, K, H, Kocan, M, Koch, F, Kocsis, G, Köhn, A, Köppen, M, Kötterl, J, Koslowski, R, Koubiti, M, Kraus, M, Krieger, K, Krivska, A, Kogut, D, Krämer Flecken, A, Kurki Suonio, T, Kurzan, B, Lackner, K, Laggner, F, Lang, P, Lauber, P, Lazányi, N, Lazaros, A, Lebschy, A, Leuterer, F, Liang, Y, Linsmeier, H, Lipschultz, B, Litnovski, A, Lohs, A, Luhmann, N, Lunt, T, Lyssoivan, A, Madsen, J, Maier, H, Maj, O, Mailloux, J, Maljaars, E, Mancini, A, Manhard, A, Mank, K, E, M, M, Mantica, P, Mantsinen, M, Manz, P, Maraschek, M, Markina, E, Martens, C, Martin, P, Mayer, A, Mayer, M, Mazon, D, Mccarthy, P, Mcdermott, R, Meisl, G, Meister, H, Medvedeva, A, Merkel, P, Merkel, R, Mertens, V, Meyer, H, Meyer, O, Milanesio, D, Miettunen, J, Mlynek, A, Monaco, F, Moro, A, Moseev, D, Müller, H, Müller, S, Münich, M, Nabais, F, Nemes Czopf, A, Neu, G, Neu, R, Nielsen, A, Nikolaeva, V, Nielsen, S, Nocente, M, Nold, B, M, N, J, Nowak, S, Oberkofler, M, Ochoukov, R, Odstrcil, T, Papp, G, Park, H, Pau, A, Pautasso, G, Penzel, F, Petersson, P, Piovesan, P, Piron, C, Plaum, B, Plöckl, B, Plyusnin, V, Podoba, Y, Pokol, G, Pompon, F, Poli, E, Polozhiy, K, Porte, L, Potzel, S, Preuss, R, Prisiazhniuk, D, Pütterich, T, Ramish, M, Rapson, C, Rasmussen, J, Rathgeber, S, Raupp, G, Réfy, D, Reich, M, Reimold, F, Reinke, M, Ribeiro, T, Riedl, R, Rittich, D, Rocchi, G, Rodriguez Ramos, M, Rohde, V, Roth, J, Rott, M, Rubel, M, Ryter, F, Saarelma, S, Salewski, M, Salmi, A, Sanchis Sanchez, L, Santos, G, Santos, J, Sauter, O, Scarabosio, A, Schall, G, Schmid, K, Schmitz, O, Schneider, P, Schneider, W, Schneller, M, Schrittwieser, R, Schubert, M, Schwarz Selinger, T, Schweinzer, J, Scott, B, Sehmer, T, Sertoli, M, Shalpegin, A, Sias, G, Siccinio, M, Sieglin, B, Sigalov, A, Silva, A, Silva, C, Simon, P, Simpson, J, Snicker, A, Sommer, F, Sozzi, C, Spolaore, M, Stejner, M, Stober, J, Stobbe, F, Stroth, U, Strumberger, E, Sugiyama, K, J, S, Suttrop, W, Szepesi, T, Tál, B, Tala, T, Tardini, G, Tichmann, C, Told, D, Tophøj, L, Tudisco, O, von Toussaint, U, Trevisan, G, Treutterer, W, Tripský, M, Valisa, M, Valovic, M, Varela, P, Varoutis, S, Vezinet, D, Vianello, N, Vicente, J, Vierle, T, Viezzer, E, Vorpahl, C, Wagner, D, Wang, X, Wauters, T, Weidl, I, Weiland, M, Weller, A, Wenninger, R, Wieland, B, Wiesinger, M, Willensdorfer, M, Wiringer, B, Wischmeier, M, Wolf, R, Wolfrum, E, Wünderlich, D, Würsching, E, Yang, Z, Yu, Q, Zammuto, I, Zarzoso, D, Zasche, D, van Zeeland, M, Zehetbauer, T, Zilker, M, Max-Planck-Institut für Plasmaphysik [Garching] (IPP), Physique des interactions ioniques et moléculaires (PIIM), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), ASDEX Upgrade Team, Max Planck Institute for Plasma Physics, Max Planck Society, and EUROfusion MST1 Team

Subjects
Nuclear and High Energy Physics, Tokamak, Cyclotron, Condensed Matter Physic, Collisionality, 01 natural sciences, Resonant magnetic perturbations, Electron cyclotron resonance, 010305 fluids & plasmas, law.invention, Nuclear physics, ASDEX Upgrade, [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph], law, ITER, 0103 physical sciences, 010306 general physics, Edge-localized mode, tokamak physic, DEMO, nuclear fusion, Physics, Divertor, Condensed Matter Physics, Tokamak physics, Nuclear fusion, tokamak physics
Abstract

Recent experiments on the ASDEX Upgrade tokamak aim at improving the physics base for ITER and DEMO to aid the machine design and prepare efficient operation. Type I edge localized mode (ELM) mitigation using resonant magnetic perturbations (RMPs) has been shown at low pedestal collisionality ( ν ∗ ped < 0 . 4 ) . In contrast to the previous high ν ∗ regime, suppression only occurs in a narrow RMP spectral window, indicating a resonant process, and a concomitant confinement drop is observed due to a reduction of pedestal top density and electron temperature. Strong evidence is found for the ion heat flux to be the decisive element for the L–H power threshold. A physics based scaling of the density at which the minimum P LH occurs indicates that ITER could take advantage of it to initiate H-mode at lower density than that of the final Q = 10 operational point. Core density fluctuation measurements resolved in radius and wave number show that an increase of R/L T e introduced by off-axis electron cyclotron resonance heating (ECRH) mainly increases the large scale fluctuations. The radial variation of the fluctuation level is in agreement with simulations using the GENE code. Fast particles are shown to undergo classical slowing down in the absence of large scale magnetohydrodynamic (MHD) events and for low heating power, but show signs of anomalous radial redistribution at large heating power, consistent with a broadened off-axis neutral beam current drive current profile under these conditions. Neoclassical tearing mode (NTM) suppression experiments using electron cyclotron current drive (ECCD) with feedback controlled deposition have allowed to test several control strategies for ITER, including automated control of (3,2) and (2,1) NTMs during a single discharge. Disruption mitigation studies using massive gas injection (MGI) can show an increased fuelling efficiency with high field side injection, but a saturation of the fuelling efficiency is observed at high injected mass as needed for runaway electron suppression. Large locked modes can significantly decrease the fuelling efficiency and increase the asymmetry of radiated power during MGI mitigation. Concerning power exhaust, the partially detached ITER divertor scenario has been demonstrated at P sep /R = 10 MW m − 1 in ASDEX Upgrade, with a peak time averaged target load around 5MWm − 2 , well consistent with the component limits for ITER. Developing this towards DEMO, full detachment was achieved at P sep /R = 7MWm − 1 and stationary discharges with core radiation fraction of the order of DEMO requirements (70% instead of the 30% needed for ITER) were demonstrated. Finally, it remains difficult to establish the standard ITER Q = 10 scenario at low q 95 = 3 in the all-tungsten (all-W) ASDEX Upgrade due to the observed poor confinement at low β N . This is mainly due to a degraded pedestal performance and hence investigations at shifting the operational point to higher β N by lowering the current have been started. At higher q 95 , pedestal performance can be recovered by seeding N 2 as well as CD 4 , which is interpreted as improved pedestal stability due to the decrease of bootstrap current with increasing Z eff . Concerning advanced scenarios, the upgrade of ECRH power has allowed experiments with central ctr-ECCD to modify the q -profile in improved H-mode scenarios, showing an increase in confinement at still good MHD stability with flat elevated q -profiles at values between 1.5 and 2. European Commission (EUROfusion 633053)

Published
2015
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17. Evaluation of a novel electrosurgical sealing mode in an ex vivo and in vivo porcine model.

Author

Thiel, Karolin, Linzenbold, Walter, Enderle, Markus D., Nold, B., Königsrainer, Alfred, Schenk, Martin, and Thiel, Christian

Subjects
ELECTROSURGERY, LAPAROSCOPIC surgery, SURGICAL instruments, ANIMAL models in research, RENAL artery, VEIN surgery, CAROTID artery surgery, IN vitro studies, BIOLOGICAL models, RESEARCH, ANIMAL experimentation, RESEARCH methodology, SURGICAL hemostasis, SWINE, EVALUATION research, MEDICAL cooperation, COMPARATIVE studies, STATISTICAL sampling, LONGITUDINAL method
Abstract

Background: Bipolar vessel sealing has been successfully introduced in a variety of procedures like prostatectomy, hysterectomy, and nephrectomy. In this study, we evaluated a new sealing mode-the thermoSEAL® mode (TSM)-operated with the VIO3 generator in an ex vivo and in vivo animal study and compared the results with the commercially available BiClamp mode (BCM), operated with the VIO300D generator. Two different instruments were used in combination with both modes, BiCision® and BiClamp® 201T (Erbe Elektromedizin GmbH).Methods: In the ex vivo experiment, the sealing of renal arteries was evaluated using both instruments and modes. For the in vivo study, different types of arteries and veins were sealed using both modes and instruments in a side-by-side comparison for acute complications in a total of four animals.Results: Mean burst pressure was in all cases significantly above 360 mmHg (p < 0.001). Sealing time during the ex vivo setting was significantly shorter for TSM compared to BCM: BiCision® (3.7 ± 0.4 vs. 7.1 ± 0.3 s; p < 0.0001); BiClamp® 201T (3.9 ± 0.3 vs. 5.1 ± 1.1 s; p < 0.0015). Lateral thermal damage was more pronounced for BCM: BiCision® (TSM 1.4 ± 0.3 mm vs. BCM 1.9 ± 0.2 mm; p < 0.0001); BiClamp® 201T (TSM 1.9 ± 0.6 mm vs. BCM 3.1 ± 0.6 mm; p < 0.0001). The sealing time during the in vivo study was significantly shorter for TSM in combination with BiCision® for arteries [TSM 3.0 ± 0.7 s vs. BCM 6.5 ± 1.3 s, (p < 0.0001) and veins 3.2 ± 1.1 vs. 5.8 ± 1.8 s, (p < 0.0001)]. No significant differences were seen for the two modes used with BiClamp® 201T [artery: TSM 3.3 ± 0.7 s vs. BCM 3.4 ± 0.9 s, (p = 0.891)]. High sealing rates for arteries (100%) and veins (>90%) were noted for both instruments and modes.Conclusions: While both modes used with two different instruments reveal high safety characterized by a high burst pressure, low thermal damage (ex vivo) zones, and high sealing rates (in vivo), the thermoSEAL® mode convinces by its fast sealing speed probably helping to reduce operation time. [ABSTRACT FROM AUTHOR]

Published
2018
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19. Estimation of edge electron temperature profiles via forward modelling of the electron cyclotron radiation transport at ASDEX Upgrade

Author

Rathgeber, S. K., Barrera, L., Eich, T., Fischer, R., Nold, B., Suttrop, W., Willensdorfer, M., Wolfrum, E., ASDEX Upgrade Team, and ASDEX Upgrade Team

Subjects
Electron density, Materials science, Cyclotron, Plasma, Electron, Radiation, Condensed Matter Physics, law.invention, Nuclear Energy and Engineering, ASDEX Upgrade, Physics::Plasma Physics, law, Electron temperature, Cyclotron radiation, Atomic physics
Abstract

We present a method to obtain reliable edge profiles of the electron temperature by forward modelling of the electron cyclotron radiation transport. While for the core of ASDEX Upgrade plasmas, straightforward analysis of electron cyclotron intensity measurements based on the optically thick plasma approximation is usually justified, reasonable analysis of the steep and optically thin plasma edge needs to consider broadened emission and absorption profiles and radiation transport processes. This is carried out in the framework of integrated data analysis which applies Bayesian probability theory for joint analysis of the electron density and temperature with data of different interdependent and complementary diagnostics. By this means, electron cyclotron radiation intensity delivers highly spatially resolved electron temperature data for the plasma edge. In H-mode, the edge gradient of the electron temperature can be several times higher than the one of the radiation temperature. Furthermore, we are able to reproduce the ‘shine-through’ peak—the observation of increased radiation temperatures at frequencies resonant in the optically thin scrape-off layer. This phenomenon is caused by strongly down-shifted radiation of Maxwellian tail electrons located in the H-mode edge region and, therefore, contains valuable information about the electron temperature edge gradient.

Published
2013

21. Latest investigations on fluctuations, ELM filaments and turbulent transport in the SOL of ASDEX Upgrade

Author

Müller, H. W., Adamek, J., Cavazzana, R., Conway, G. D., Fuchs, C., Gunn, J. P., Herrmann, A., Horacek, J., Ionita, C., Kallenbach, A., Kocan, M., Maraschek, M., Maszl, C., Mehlmann, F., Nold, B., Peterka, M., Rohde, V., Schweinzer, J., Schrittwieser, R., Vianello, N., Wolfrum, E., Zuin, M., ASDEX Upgrade Team, and ASDEX Upgrade Team

Subjects
ZONAL FLOWS, Nuclear and High Energy Physics, Electron density, Materials science, DIII-D, Turbulence, Plasma parameters, SCRAPE-OFF-LAYER, Plasma, Reynolds stress, Condensed Matter Physics, 01 natural sciences, 010305 fluids & plasmas, Momentum, ASDEX Upgrade, Electric field, 0103 physical sciences, TOKAMAK, Atomic physics, 010306 general physics, BALL-PEN
Abstract

This paper presents turbulence investigations in the scrape-off layer (SOL) of ASDEX Upgrade in ohmic, L-mode and H-mode discharges using electrostatic and electromagnetic probes. Detailed studies are performed on small scale turbulence and on ELM filaments. Simultaneous measurements of floating and plasma potential fluctuations revealed significant differences between these quantities. Large errors can occur when the electric field is extracted from floating potential measurements, even in ohmic discharges. Turbulence studies in ohmic plasmas show the existence of density holes inside the separatrix and blobs outside. Close to the separatrix a reversal of the poloidal blob propagation velocity occurs. Investigations on the Reynolds stress in the scrape-off layer (SOL) show its importance for the momentum transport in L-mode while its impact for momentum transport during ELMs in H-mode is rather small. In the far SOL the electron density and temperature were measured during type-I ELMy H-mode at ASDEX Upgrade resolving ELM filaments. Strong density peaks and temperatures of several 10 eV were detected during the ELM events. Additional investigations on the ions in ELM filaments by a retarding field analyser indicate ion temperatures of 50–80 eV. ELMs also expel current concentrated in filaments into the SOL. Furthermore, discharges with small ELMs were studied. In N2 seeded discharges the type-I ELM frequency rises and the ELM duration decreases. For discharges with small type-II ELMs the mean turbulent radial particle flux is increased over the mean particle flux in type-I ELM discharges at otherwise similar plasma parameters.

Published
2011
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24. Optimized generator modes for bipolar vessel sealing

Author

Wagenpfeil, J., primary, Jung, M., additional, Nold, B., additional, Neugebauer, A., additional, Ederer, M., additional, Kramer, B., additional, Rothmund, R., additional, Schwentner, C., additional, Wallwiener, D., additional, Stenzl, A., additional, Schenk, M., additional, Enderle, M., additional, Sawodny, O., additional, and Feuer, R., additional

Published
2015
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25. Finite-element-modeling of egg white as a substitute for tissue coagulation during bipolar radiofrequency-induced thermofusion

Author

Wagenpfeil, J., primary, Schollig, C., additional, Mayer, V., additional, Nold, B., additional, Ederer, M., additional, Neugebauer, A., additional, Rothmund, R., additional, Kramer, B., additional, Schwentner, C., additional, Schenk, M., additional, Wallwiener, D., additional, Stenzl, A., additional, Enderle, M., additional, Sawodny, O., additional, and Feuer, R., additional

Published
2015
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26. 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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27. Generation of blobs and holes in the edge of the ASDEX Upgrade tokamak

Author

Nold, B., Conway, G. D., Happel, T., Müller, H. W., Ramisch, M., Rohde, V., Stroth, U., ASDEX Upgrade Team, and ASDEX Upgrade Team

Subjects
Physics, Tokamak, Turbulence, Plasma parameters, Plasma, Condensed Matter Physics, Computational physics, law.invention, symbols.namesake, Nuclear Energy and Engineering, ASDEX Upgrade, Physics::Plasma Physics, law, Physics::Space Physics, symbols, Langmuir probe, Electric current, Atomic physics, Shear flow
Abstract

The intermittent character of turbulent transport is investigated with Langmuir probes in the scrape-off layer and across the separatrix of ASDEX Upgrade Ohmic discharges. Radial profiles of plasma parameters are in reasonable agreement with results from other diagnostics. The probability density functions of ion-saturation current fluctuations exhibit a parabolic relation between skewness and kurtosis. Intermittent blobs and holes are observed outside and inside the nominal separatrix, respectively. They seem to be born at the edge of the plasma and are not the foothills of avalanches launched in the plasma core. A strong shear flow was observed 1 cm radially outside the location where blobs and holes seem to be generated.

Published
2010

28. 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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30. 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

33. A mathematical model of bipolar radiofrequency-induced thermofusion

Author

Wagenpfeil, J., primary, Nold, B., additional, Fischer, K., additional, Neugebauer, A., additional, Rothmund, R., additional, Kramer, B., additional, Brucker, S., additional, Mischinger, J., additional, Schwentner, C., additional, Schenk, M., additional, Wallwiener, D., additional, Stenzl, A., additional, Enderle, M., additional, Sawodny, O., additional, and Ederer, M., additional

Published
2014
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35. Overview of ASDEX Upgrade results

Author

Stroth, U, Adamek, J, Aho Mantila, L, Akaslompolo, S, Amdor, C, Angioni, C, Balden, M, Bardin, S, Orte, L, Behler, K, Belonohy, E, Bergmann, A, Bernert, M, Bilato, R, Birkenmeier, G, Bobkov, V, Boom, J, Bottereau, C, Bottino, A, Braun, F, Brezinsek, S, Brochard, T, Bruedgam, M, Buhler, A, Burckhart, A, Casson, F, Chankin, A, Chapman, I, Clairet, F, Classen, I, Coenen, J, Conway, G, Coster, D, Curran, D, da Silva, F, de Marne, P, D'Inca, R, Douai, D, Drube, R, Dunne, M, Dux, R, Eich, T, Eixenberger, H, Endstrasser, N, Engelhardt, K, Esposito, B, Fable, E, Fischer, R, Fuenfgelder, H, Fuchs, J, Gal, K, Munoz, M, Geiger, B, Giannone, L, Goerler, T, da Graca, S, Greuner, H, Gruber, O, Gude, A, Guimarais, L, Guenter, S, Haas, G, Hakola, A, Hangan, D, Happel, T, Haertl, T, Hauff, T, Heinemann, B, Herrmann, A, Hobirk, J, Hoehnle, H, Hoelzl, M, Hopf, C, Houben, A, Igochine, V, Ionita, C, Janzer, A, Jenko, F, Kantor, M, Kaesemann, C, Kallenbach, A, Kalvin, S, Kappatou, A, Kardaun, O, Kasparek, W, Kaufmann, M, Kirk, A, Klingshirn, H, Kocan, M, Kocsis, G, Konz, C, Koslowski, R, Krieger, K, Kubic, M, Kurki Suonio, T, Kurzan, B, Lackner, K, Lang, P, Lauber, P, Laux, M, Lazaros, A, Leipold, F, Leuterer, F, Lindig, S, Lisgo, S, Lohs, A, Lunt, T, Maier, H, Makkonen, T, Mank, K, Manso, M, Maraschek, M, Mayer, M, Mccarthy, P, Mcdermott, R, Mehlmann, F, Meister, H, Menchero, L, Meo, F, Merkel, P, Merkel, R, Mertens, V, Merz, F, Mlynek, A, Monaco, F, Mueller, S, Mueller, H, Muenich, M, Neu, G, Neu, R, Neuwirth, D, Nocente, M, Nold, B, Noterdaeme, J, Pautasso, G, Pereverzev, G, Ploeckl, B, Podoba, Y, Pompon, F, Poli, E, Polozhiy, K, Potzel, S, Pueschel, M, Puetterich, T, Rathgeber, S, Raupp, G, Reich, M, Reimold, F, Ribeiro, T, Riedl, R, Rohde, V, Rooij, G, Roth, J, Rott, M, Ryter, F, Salewski, M, Santos, J, Sauter, P, Scarabosio, A, Schall, G, Schmid, K, Schneider, P, Schneider, W, Schrittwieser, R, Schubert, M, Schweinzer, J, Scott, B, Sempf, M, Sertoli, M, Siccinio, M, Sieglin, B, Sigalov, A, Silva, A, Sommer, F, Staebler, A, Stober, J, Streibl, B, Strumberger, E, Sugiyama, K, Suttrop, W, Tala, T, Tardini, G, Teschke, M, Tichmann, C, Told, D, Treutterer, W, Tsalas, M, Van Zeeland, M, Varela, P, Veres, G, Vicente, J, Vianello, N, Vierle, T, Viezzer, E, Viola, B, Vorpahl, C, Wachowski, M, Wagner, D, Wauters, T, Weller, A, Wenninger, R, Wieland, B, Willensdorfer, M, Wischmeier, M, Wolfrum, E, Wuersching, E, Yu, Q, Zammuto, I, Zasche, D, Zehetbauer, T, Zhang, Y, Zilker, M, Zohm, H, McCarthy, P, McDermott, R, Zohm, H., NOCENTE, MASSIMO, Stroth, U, Adamek, J, Aho Mantila, L, Akaslompolo, S, Amdor, C, Angioni, C, Balden, M, Bardin, S, Orte, L, Behler, K, Belonohy, E, Bergmann, A, Bernert, M, Bilato, R, Birkenmeier, G, Bobkov, V, Boom, J, Bottereau, C, Bottino, A, Braun, F, Brezinsek, S, Brochard, T, Bruedgam, M, Buhler, A, Burckhart, A, Casson, F, Chankin, A, Chapman, I, Clairet, F, Classen, I, Coenen, J, Conway, G, Coster, D, Curran, D, da Silva, F, de Marne, P, D'Inca, R, Douai, D, Drube, R, Dunne, M, Dux, R, Eich, T, Eixenberger, H, Endstrasser, N, Engelhardt, K, Esposito, B, Fable, E, Fischer, R, Fuenfgelder, H, Fuchs, J, Gal, K, Munoz, M, Geiger, B, Giannone, L, Goerler, T, da Graca, S, Greuner, H, Gruber, O, Gude, A, Guimarais, L, Guenter, S, Haas, G, Hakola, A, Hangan, D, Happel, T, Haertl, T, Hauff, T, Heinemann, B, Herrmann, A, Hobirk, J, Hoehnle, H, Hoelzl, M, Hopf, C, Houben, A, Igochine, V, Ionita, C, Janzer, A, Jenko, F, Kantor, M, Kaesemann, C, Kallenbach, A, Kalvin, S, Kappatou, A, Kardaun, O, Kasparek, W, Kaufmann, M, Kirk, A, Klingshirn, H, Kocan, M, Kocsis, G, Konz, C, Koslowski, R, Krieger, K, Kubic, M, Kurki Suonio, T, Kurzan, B, Lackner, K, Lang, P, Lauber, P, Laux, M, Lazaros, A, Leipold, F, Leuterer, F, Lindig, S, Lisgo, S, Lohs, A, Lunt, T, Maier, H, Makkonen, T, Mank, K, Manso, M, Maraschek, M, Mayer, M, Mccarthy, P, Mcdermott, R, Mehlmann, F, Meister, H, Menchero, L, Meo, F, Merkel, P, Merkel, R, Mertens, V, Merz, F, Mlynek, A, Monaco, F, Mueller, S, Mueller, H, Muenich, M, Neu, G, Neu, R, Neuwirth, D, Nocente, M, Nold, B, Noterdaeme, J, Pautasso, G, Pereverzev, G, Ploeckl, B, Podoba, Y, Pompon, F, Poli, E, Polozhiy, K, Potzel, S, Pueschel, M, Puetterich, T, Rathgeber, S, Raupp, G, Reich, M, Reimold, F, Ribeiro, T, Riedl, R, Rohde, V, Rooij, G, Roth, J, Rott, M, Ryter, F, Salewski, M, Santos, J, Sauter, P, Scarabosio, A, Schall, G, Schmid, K, Schneider, P, Schneider, W, Schrittwieser, R, Schubert, M, Schweinzer, J, Scott, B, Sempf, M, Sertoli, M, Siccinio, M, Sieglin, B, Sigalov, A, Silva, A, Sommer, F, Staebler, A, Stober, J, Streibl, B, Strumberger, E, Sugiyama, K, Suttrop, W, Tala, T, Tardini, G, Teschke, M, Tichmann, C, Told, D, Treutterer, W, Tsalas, M, Van Zeeland, M, Varela, P, Veres, G, Vicente, J, Vianello, N, Vierle, T, Viezzer, E, Viola, B, Vorpahl, C, Wachowski, M, Wagner, D, Wauters, T, Weller, A, Wenninger, R, Wieland, B, Willensdorfer, M, Wischmeier, M, Wolfrum, E, Wuersching, E, Yu, Q, Zammuto, I, Zasche, D, Zehetbauer, T, Zhang, Y, Zilker, M, Zohm, H, McCarthy, P, McDermott, R, Zohm, H., and NOCENTE, MASSIMO

Abstract

The medium size divertor tokamak ASDEX Upgrade (major and minor radii 1.65 m and 0.5 m, respectively, magnetic-field strength 2.5 T) possesses flexible shaping and versatile heating and current drive systems. Recently the technical capabilities were extended by increasing the electron cyclotron resonance heating (ECRH) power, by installing 2 × 8 internal magnetic perturbation coils, and by improving the ion cyclotron range of frequency compatibility with the tungsten wall. With the perturbation coils, reliable suppression of large type-I edge localized modes (ELMs) could be demonstrated in a wide operational window, which opens up above a critical plasma pedestal density. The pellet fuelling efficiency was observed to increase which gives access to H-mode discharges with peaked density profiles at line densities clearly exceeding the empirical Greenwald limit. Owing to the increased ECRH power of 4 MW, H-mode discharges could be studied in regimes with dominant electron heating and low plasma rotation velocities, i.e. under conditions particularly relevant for ITER. The ion-pressure gradient and the neoclassical radial electric field emerge as key parameters for the transition. Using the total simultaneously available heating power of 23 MW, high performance discharges have been carried out where feed-back controlled radiative cooling in the core and the divertor allowed the divertor peak power loads to be maintained below 5 MW m -2. Under attached divertor conditions, a multi-device scaling expression for the power-decay length was obtained which is independent of major radius and decreases with magnetic field resulting in a decay length of 1 mm for ITER. At higher densities and under partially detached conditions, however, a broadening of the decay length is observed. In discharges with density ramps up to the density limit, the divertor plasma shows a complex behaviour with a localized high-density region in the inner divertor before the outer divertor detaches.

Published
2013

36. Overview of ASDEX Upgrade results

Author

Kallenbach, A., Adamek, J., Aho-Mantila, L., Äkäslompolo, S., Angioni, C., Atanasiu, C.V., Balden, M., Behler, K., Belonohy, E., Bergmann, A., Bernert, M., Bilato, R., Bobkov, V., Boom, J., Bottino, A., Braun, F., Brüdgam, M., Buhler, A., Burckhart, A., Chankin, A., Classen, I.G.J., Conway, G.D., Coster, D.P., de Marné, P., D'Inca, R., Drube, R., Dux, R., Eich, T., Endstrasser, N., Engelhardt, K., Esposito, B., Fable, E., Fahrbach, H.-U., Fattorini, L., Fischer, R., Flaws, A., Fünfgelder, H., Fuchs, J.C., Gál, K., García Muñoz, M., Geiger, B., Gemisic Adamov, M., Giannone, L., Giroud, C., Görler, T., da Graca, S., Greuner, H., Gruber, O., Gude, A., Günter, S., Haas, G., Hakola, A.H., Hangan, D., Happel, T., Hauff, T., Heinemann, B., Herrmann, A., Hicks, N., Hobirk, J., Höhnle, H., Hölzl, M., Hopf, C., Horton, L., Huart, M., Igochine, V., Ionita, C., Janzer, A., Jenko, F., Käsemann, C.-P., Kálvin, S., Kardaun, O., Kaufmann, M., Kirk, A., Klingshirn, H.-J., Kocan, M., Kocsis, G., Kollotzek, H., Konz, C., Koslowski, R., Krieger, K., Kurki-Suonio, T., Kurzan, B., Lackner, K., Lang, P.T., Lauber, P., Laux, M., Leipold, Frank, Leuterer, F., Lohs, A., Luhmann, N.C., Jr, Lunt, T., Lyssoivan, A., Maier, H., Maggi, C., Mank, K., Manso, M.-E., Maraschek, M., Martin, P., Mayer, M., McCarthy, P.J., McDermott, R., Meister, H., Menchero, L., Meo, Fernando, Merkel, P., Merkel, R., Mertens, V., Merz, F., Mlynek, A., Monaco, F., Müller, H.W., Münich, M., Murmann, H., Neu, G., Neu, R., Nold, B., Noterdaeme, J.-M., Park, H.K., Pautasso, G., Pereverzev, G., Podoba, Y., Pompon, F., Poli, E., Polochiy, K., Potzel, S., Prechtl, M., Püschel, M.J., Pütterich, T., Rathgeber, S.K., 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.A., Schneider, W., Schramm, G., Schrittwieser, R., Schweinzer, J., Scott, B., Sempf, M., Serra, F., Sertoli, M., Siccinio, M., Sigalov, A., Silva, A., Sips, A.C.C., Sommer, F., Stäbler, A., Stober, J., Streibl, B., Strumberger, E., Sugiyama, K., Suttrop, W., Szepesi, T., Tardini, G., Tichmann, C., Told, D., Treutterer, W., Urso, L., Varela, P., Vincente, J., Vianello, N., Vierle, T., Viezzer, E., Vorpahl, C., Wagner, D., Weller, A., Wenninger, R., Wieland, B., Wigger, C., Willensdorfer, M., Wischmeier, M., Wolfrum, E., Würsching, E., Yadikin, D., Yu, Q., Zammuto, I., Zasche, D., Zehetbauer, T., Zhang, Y., Zilker, M., Zohm, H., Kallenbach, A., Adamek, J., Aho-Mantila, L., Äkäslompolo, S., Angioni, C., Atanasiu, C.V., Balden, M., Behler, K., Belonohy, E., Bergmann, A., Bernert, M., Bilato, R., Bobkov, V., Boom, J., Bottino, A., Braun, F., Brüdgam, M., Buhler, A., Burckhart, A., Chankin, A., Classen, I.G.J., Conway, G.D., Coster, D.P., de Marné, P., D'Inca, R., Drube, R., Dux, R., Eich, T., Endstrasser, N., Engelhardt, K., Esposito, B., Fable, E., Fahrbach, H.-U., Fattorini, L., Fischer, R., Flaws, A., Fünfgelder, H., Fuchs, J.C., Gál, K., García Muñoz, M., Geiger, B., Gemisic Adamov, M., Giannone, L., Giroud, C., Görler, T., da Graca, S., Greuner, H., Gruber, O., Gude, A., Günter, S., Haas, G., Hakola, A.H., Hangan, D., Happel, T., Hauff, T., Heinemann, B., Herrmann, A., Hicks, N., Hobirk, J., Höhnle, H., Hölzl, M., Hopf, C., Horton, L., Huart, M., Igochine, V., Ionita, C., Janzer, A., Jenko, F., Käsemann, C.-P., Kálvin, S., Kardaun, O., Kaufmann, M., Kirk, A., Klingshirn, H.-J., Kocan, M., Kocsis, G., Kollotzek, H., Konz, C., Koslowski, R., Krieger, K., Kurki-Suonio, T., Kurzan, B., Lackner, K., Lang, P.T., Lauber, P., Laux, M., Leipold, Frank, Leuterer, F., Lohs, A., Luhmann, N.C., Jr, Lunt, T., Lyssoivan, A., Maier, H., Maggi, C., Mank, K., Manso, M.-E., Maraschek, M., Martin, P., Mayer, M., McCarthy, P.J., McDermott, R., Meister, H., Menchero, L., Meo, Fernando, Merkel, P., Merkel, R., Mertens, V., Merz, F., Mlynek, A., Monaco, F., Müller, H.W., Münich, M., Murmann, H., Neu, G., Neu, R., Nold, B., Noterdaeme, J.-M., Park, H.K., Pautasso, G., Pereverzev, G., Podoba, Y., Pompon, F., Poli, E., Polochiy, K., Potzel, S., Prechtl, M., Püschel, M.J., Pütterich, T., Rathgeber, S.K., 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.A., Schneider, W., Schramm, G., Schrittwieser, R., Schweinzer, J., Scott, B., Sempf, M., Serra, F., Sertoli, M., Siccinio, M., Sigalov, A., Silva, A., Sips, A.C.C., Sommer, F., Stäbler, A., Stober, J., Streibl, B., Strumberger, E., Sugiyama, K., Suttrop, W., Szepesi, T., Tardini, G., Tichmann, C., Told, D., Treutterer, W., Urso, L., Varela, P., Vincente, J., Vianello, N., Vierle, T., Viezzer, E., Vorpahl, C., Wagner, D., Weller, A., Wenninger, R., Wieland, B., Wigger, C., Willensdorfer, M., Wischmeier, M., Wolfrum, E., Würsching, E., Yadikin, D., Yu, Q., Zammuto, I., Zasche, D., Zehetbauer, T., Zhang, Y., Zilker, M., and Zohm, H.

Abstract

The ASDEX Upgrade programme is directed towards physics input to critical elements of the ITER design and the preparation of ITER operation, as well as addressing physics issues for a future DEMO design. After the finalization of the tungsten coating of the plasma facing components, the re-availability of all flywheel-generators allowed high-power operation with up to 20 MW heating power at Ip up to 1.2 MA. Implementation of alternative ECRH schemes (140 GHz O2- and X3-mode) facilitated central heating above ne = 1.2 × 1020 m−3 and low q95 operation at Bt = 1.8 T. Central O2-mode heating was successfully used in high P/R discharges with 20 MW total heating power and divertor load control with nitrogen seeding. Improved energy confinement is obtained with nitrogen seeding both for type-I and type-III ELMy conditions. The main contributor is increased plasma temperature, no significant changes in the density profile have been observed. This behaviour may be explained by higher pedestal temperatures caused by ion dilution in combination with a pressure limited pedestal and hollow nitrogen profiles. Core particle transport simulations with gyrokinetic calculations have been benchmarked by dedicated discharges using variations of the ECRH deposition location. The reaction of normalized electron density gradients to variations of temperature gradients and the Te/Ti ratio could be well reproduced. Doppler reflectometry studies at the L–H transition allowed the disentanglement of the interplay between the oscillatory geodesic acoustic modes, turbulent fluctuations and the mean equilibrium E × B flow in the edge negative Er well region just inside the separatrix. Improved pedestal diagnostics revealed also a refined picture of the pedestal transport in the fully developed H-mode type-I ELM cycle. Impurity ion transport turned out to be neoclassical in between ELMs. Electron and energy transport remain anomalous, but exhibit different recovery time scales after an ELM. After

Published
2011

38. Overview of ASDEX Upgrade results

Author

Stroth, U., primary, Adamek, J., additional, Aho-Mantila, L., additional, Äkäslompolo, S., additional, Amdor, C., additional, Angioni, C., additional, Balden, M., additional, Bardin, S., additional, Barrera Orte, L., additional, Behler, K., additional, Belonohy, E., additional, Bergmann, A., additional, Bernert, M., additional, Bilato, R., additional, Birkenmeier, G., additional, Bobkov, V., additional, Boom, J., additional, Bottereau, C., additional, Bottino, A., additional, Braun, F., additional, Brezinsek, S., additional, Brochard, T., additional, Brüdgam, M., additional, Buhler, A., additional, Burckhart, A., additional, Casson, F.J., additional, Chankin, A., additional, Chapman, I., additional, Clairet, F., additional, Classen, I.G.J., additional, Coenen, J.W., additional, Conway, G.D., additional, Coster, D.P., additional, Curran, D., additional, da Silva, F., additional, de Marné, P., additional, D'Inca, R., additional, Douai, D., additional, Drube, R., additional, Dunne, M., additional, Dux, R., additional, Eich, T., additional, Eixenberger, H., additional, Endstrasser, N., additional, Engelhardt, K., additional, Esposito, B., additional, Fable, E., additional, Fischer, R., additional, Fünfgelder, H., additional, Fuchs, J.C., additional, Gál, K., additional, García Muñoz, M., additional, Geiger, B., additional, Giannone, L., additional, Görler, T., additional, da Graca, S., additional, Greuner, H., additional, Gruber, O., additional, Gude, A., additional, Guimarais, L., additional, Günter, S., additional, Haas, G., additional, Hakola, A.H., additional, Hangan, D., additional, Happel, T., additional, Härtl, T., additional, Hauff, T., additional, Heinemann, B., additional, Herrmann, A., additional, Hobirk, J., additional, Höhnle, H., additional, Hölzl, M., additional, Hopf, C., additional, Houben, A., additional, Igochine, V., additional, Ionita, C., additional, Janzer, A., additional, Jenko, F., additional, Kantor, M., additional, Käsemann, C.-P., additional, Kallenbach, A., additional, Kálvin, S., additional, Kappatou, A., additional, Kardaun, O., additional, Kasparek, W., additional, Kaufmann, M., additional, Kirk, A., additional, Klingshirn, H.-J., additional, Kocan, M., additional, Kocsis, G., additional, Konz, C., additional, Koslowski, R., additional, Krieger, K., additional, Kubic, M., additional, Kurki-Suonio, T., additional, Kurzan, B., additional, Lackner, K., additional, Lang, P.T., additional, Lauber, P., additional, Laux, M., additional, Lazaros, A., additional, Leipold, F., additional, Leuterer, F., additional, Lindig, S., additional, Lisgo, S., additional, Lohs, A., additional, Lunt, T., additional, Maier, H., additional, Makkonen, T., additional, Mank, K., additional, Manso, M.-E., additional, Maraschek, M., additional, Mayer, M., additional, McCarthy, P.J., additional, McDermott, R., additional, Mehlmann, F., additional, Meister, H., additional, Menchero, L., additional, Meo, F., additional, Merkel, P., additional, Merkel, R., additional, Mertens, V., additional, Merz, F., additional, Mlynek, A., additional, Monaco, F., additional, Müller, S., additional, Müller, H.W., additional, Münich, M., additional, Neu, G., additional, Neu, R., additional, Neuwirth, D., additional, Nocente, M., additional, Nold, B., additional, Noterdaeme, J.-M., additional, Pautasso, G., additional, Pereverzev, G., additional, Plöckl, B., additional, Podoba, Y., additional, Pompon, F., additional, Poli, E., additional, Polozhiy, K., additional, Potzel, S., additional, Püschel, M.J., additional, Pütterich, T., additional, Rathgeber, S.K., additional, Raupp, G., additional, Reich, M., additional, Reimold, F., additional, Ribeiro, T., additional, Riedl, R., additional, Rohde, V., additional, Rooij, G. v., additional, Roth, J., additional, Rott, M., additional, Ryter, F., additional, Salewski, M., additional, Santos, J., additional, Sauter, P., additional, Scarabosio, A., additional, Schall, G., additional, Schmid, K., additional, Schneider, P.A., additional, Schneider, W., additional, Schrittwieser, R., additional, Schubert, M., additional, Schweinzer, J., additional, Scott, B., additional, Sempf, M., additional, Sertoli, M., additional, Siccinio, M., additional, Sieglin, B., additional, Sigalov, A., additional, Silva, A., additional, Sommer, F., additional, Stäbler, A., additional, Stober, J., additional, Streibl, B., additional, Strumberger, E., additional, Sugiyama, K., additional, Suttrop, W., additional, Tala, T., additional, Tardini, G., additional, Teschke, M., additional, Tichmann, C., additional, Told, D., additional, Treutterer, W., additional, Tsalas, M., additional, Van Zeeland, M. A., additional, Varela, P., additional, Veres, G., additional, Vicente, J., additional, Vianello, N., additional, Vierle, T., additional, Viezzer, E., additional, Viola, B., additional, Vorpahl, C., additional, Wachowski, M., additional, Wagner, D., additional, Wauters, T., additional, Weller, A., additional, Wenninger, R., additional, Wieland, B., additional, Willensdorfer, M., additional, Wischmeier, M., additional, Wolfrum, E., additional, Würsching, E., additional, Yu, Q., additional, Zammuto, I., additional, Zasche, D., additional, Zehetbauer, T., additional, Zhang, Y., additional, Zilker, M., additional, and Zohm, H., additional

Published
2013
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39. Plasma wall interaction and its implication in an all tungsted divertor tokamak

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., Marne, P. de, 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., Munoz, M.G, Gemisic-Adamov, M., Giannone, L., Gori, S., Graca, S. da, 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, 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, Fernando, Merkel, P., Merkel, R., Mertens, V., Merz, F., Meyer, H., Mlynek, M., Monaco, F., Murmann1, H., Neu, G., Neuhauser, J., Nold, B., Noterdaeme, J.-M., Pautasso, G., Pereverzev, G., Poli, E., Püschel1, 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., Zohm, H., 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., Marne, P. de, 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., Munoz, M.G, Gemisic-Adamov, M., Giannone, L., Gori, S., Graca, S. da, 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, 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, Fernando, Merkel, P., Merkel, R., Mertens, V., Merz, F., Meyer, H., Mlynek, M., Monaco, F., Murmann1, H., Neu, G., Neuhauser, J., Nold, B., Noterdaeme, J.-M., Pautasso, G., Pereverzev, G., Poli, E., Püschel1, 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

40. Intermittent transport across the scrape-off layer: latest results from ASDEX Upgrade

Author

Kocan, M., Müller, H. W., Nold, B., Lunt, T., Adamek, J., Allan, S. Y., Bernert, M., Conway, G. D., Marne, P. de, Eich, T., Elmore, S., Gennrich, F. P., Herrmann, A., Horacek, J., Huang, Z., Kallenbach, A., Komm, M., Maraschek, M., Mehlmann, F., Müller, S., Ribeiro, T. T., Rohde, V., Schrittwieser, R., Scott, B., Stroth, U., Suttrop, W., Wolfrum, E., ASDEX Upgrade Team, and ASDEX Upgrade Team

Subjects
Nuclear and High Energy Physics, Materials science, Infrared, Turbulence, Divertor, Perturbation (astronomy), Plasma, Condensed Matter Physics, 01 natural sciences, 010305 fluids & plasmas, Ion, ASDEX Upgrade, Saturation current, 0103 physical sciences, Atomic physics, 010306 general physics
Abstract

We report the latest results of turbulence and transport studies in the ASDEX Upgrade scrape-off layer (SOL). Dissimilarity between the plasma and the floating potential fluctuations is studied experimentally and by gyrofluid simulations. Measurements by a retarding field analyser reveal that both, edge-localized mode (ELM) and turbulent filaments, convey hot ions over large radial distances in the SOL. The measured far SOL ELM ion temperature increases with the ELM energy, consistent with earlier observations that large ELMs deposit a large fraction of their energy outside the divertor. In the SOL, the ELM suppression by magnetic perturbations (MPs) results in lower ELM ion energy in the far SOL. At the same time, large filaments of ion saturation current are replaced by more continuous bursts. Splitting of the divertor strike zones observed by the infrared imaging in H-mode with MPs agree with predictions from the EMC3-Eirene simulations. This suggests that the ‘lobe’ structures due to perturbation fields observed near the X-point are not significantly affected by plasma screening, and can be described by a vacuum approach, as in the EMC3-Eirene. Finally, some effects of the MPs on the L-mode SOL are addressed.

Published
2013
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42. Overview of ASDEX Upgrade results

Author

Kallenbach, A., primary, Adamek, J., additional, Aho-Mantila, L., additional, Äkäslompolo, S., additional, Angioni, C., additional, Atanasiu, C.V., additional, Balden, M., additional, Behler, K., additional, Belonohy, E., additional, Bergmann, A., additional, Bernert, M., additional, Bilato, R., additional, Bobkov, V., additional, Boom, J., additional, Bottino, A., additional, Braun, F., additional, Brüdgam, M., additional, Buhler, A., additional, Burckhart, A., additional, Chankin, A., additional, Classen, I.G.J., additional, Conway, G.D., additional, Coster, D.P., additional, de Marné, P., additional, D'Inca, R., additional, Drube, R., additional, Dux, R., additional, Eich, T., additional, Endstrasser, N., additional, Engelhardt, K., additional, Esposito, B., additional, Fable, E., additional, Fahrbach, H.-U., additional, Fattorini, L., additional, Fischer, R., additional, Flaws, A., additional, Fünfgelder, H., additional, Fuchs, J.C., additional, Gál, K., additional, García Muñoz, M., additional, Geiger, B., additional, Gemisic Adamov, M., additional, Giannone, L., additional, Giroud, C., additional, Görler, T., additional, da Graca, S., additional, Greuner, H., additional, Gruber, O., additional, Gude, A., additional, Günter, S., additional, Haas, G., additional, Hakola, A.H., additional, Hangan, D., additional, Happel, T., additional, Hauff, T., additional, Heinemann, B., additional, Herrmann, A., additional, Hicks, N., additional, Hobirk, J., additional, Höhnle, H., additional, Hölzl, M., additional, Hopf, C., additional, Horton, L., additional, Huart, M., additional, Igochine, V., additional, Ionita, C., additional, Janzer, A., additional, Jenko, F., additional, Käsemann, C.-P., additional, Kálvin, S., additional, Kardaun, O., additional, Kaufmann, M., additional, Kirk, A., additional, Klingshirn, H.-J., additional, Kocan, M., additional, Kocsis, G., additional, Kollotzek, H., additional, Konz, C., additional, Koslowski, R., additional, Krieger, K., additional, Kurki-Suonio, T., additional, Kurzan, B., additional, Lackner, K., additional, Lang, P.T., additional, Lauber, P., additional, Laux, M., additional, Leipold, F., additional, Leuterer, F., additional, Lohs, A., additional, Luhmann, N.C., additional, Lunt, T., additional, Lyssoivan, A., additional, Maier, H., additional, Maggi, C., additional, Mank, K., additional, Manso, M.-E., additional, Maraschek, M., additional, Martin, P., additional, Mayer, M., additional, McCarthy, P.J., additional, McDermott, R., additional, Meister, H., additional, Menchero, L., additional, Meo, F., additional, Merkel, P., additional, Merkel, R., additional, Mertens, V., additional, Merz, F., additional, Mlynek, A., additional, Monaco, F., additional, Müller, H.W., additional, Münich, M., additional, Murmann, H., additional, Neu, G., additional, Neu, R., additional, Nold, B., additional, Noterdaeme, J.-M., additional, Park, H.K., additional, Pautasso, G., additional, Pereverzev, G., additional, Podoba, Y., additional, Pompon, F., additional, Poli, E., additional, Polochiy, K., additional, Potzel, S., additional, Prechtl, M., additional, Püschel, M.J., additional, Pütterich, T., additional, Rathgeber, S.K., additional, Raupp, G., additional, Reich, M., additional, Reiter, B., additional, Ribeiro, T., additional, Riedl, R., additional, Rohde, V., additional, Roth, J., additional, Rott, M., additional, Ryter, F., additional, Sandmann, W., additional, Santos, J., additional, Sassenberg, K., additional, Sauter, P., additional, Scarabosio, A., additional, Schall, G., additional, Schmid, K., additional, Schneider, P.A., additional, Schneider, W., additional, Schramm, G., additional, Schrittwieser, R., additional, Schweinzer, J., additional, Scott, B., additional, Sempf, M., additional, Serra, F., additional, Sertoli, M., additional, Siccinio, M., additional, Sigalov, A., additional, Silva, A., additional, Sips, A.C.C., additional, Sommer, F., additional, Stäbler, A., additional, Stober, J., additional, Streibl, B., additional, Strumberger, E., additional, Sugiyama, K., additional, Suttrop, W., additional, Szepesi, T., additional, Tardini, G., additional, Tichmann, C., additional, Told, D., additional, Treutterer, W., additional, Urso, L., additional, Varela, P., additional, Vincente, J., additional, Vianello, N., additional, Vierle, T., additional, Viezzer, E., additional, Vorpahl, C., additional, Wagner, D., additional, Weller, A., additional, Wenninger, R., additional, Wieland, B., additional, Wigger, C., additional, Willensdorfer, M., additional, Wischmeier, M., additional, Wolfrum, E., additional, Würsching, E., additional, Yadikin, D., additional, Yu, Q., additional, Zammuto, I., additional, Zasche, D., additional, Zehetbauer, T., additional, Zhang, Y., additional, Zilker, M., additional, and Zohm, H., additional

Published
2011
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45. Latest investigations on fluctuations, ELM filaments and turbulent transport in the SOL of ASDEX Upgrade

Author

Müller, H.W., primary, Adamek, J., additional, Cavazzana, R., additional, Conway, G.D., additional, Fuchs, C., additional, Gunn, J.P., additional, Herrmann, A., additional, Horaček, J., additional, Ionita, C., additional, Kallenbach, A., additional, Kočan, M., additional, Maraschek, M., additional, Maszl, C., additional, Mehlmann, F., additional, Nold, B., additional, Peterka, M., additional, Rohde, V., additional, Schweinzer, J., additional, Schrittwieser, R., additional, Vianello, N., additional, Wolfrum, E., additional, and Zuin, M., additional

Published
2011
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48. Addendum to papers from Axially Symmetric Divertor Experiment (ASDEX) Upgrade Team, published in Review of Scientific Instruments

Author

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

Published
2010
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