Results 111 to 120 of about 311,592 (233)

Determination of photon efficiencies and hydrocarbon influxes in the detached outer divertor plasma of ASDEX upgrade [PDF]

, 2007
Hydrocarbon injection experiments with in situ calibration of spectroscopic signals have been carried out to determine the hydrocarbon flux and the chemical erosion yield under detached plasma conditions in ASDEX Upgrade.
Brezinsek, S., Pugno, R., Fantz, U., Mertens, P., Fantz, Ursel, Manhard, A., Müller, H. W., Müller, H., Kallenbach, A., Mertens, Ph., ASDEX Upgrade Team   +10 more
core   +1 more source

Neural networks for reconstruction and uncertainty quantification of fast-ion phase-space distributions using FILD and INPA measurements

Nuclear Fusion
This study introduces the use of a deep convolutional neural network for reconstructing fast-ion velocity distributions from fast-ion loss detectors and imaging neutral particle analyzers (INPAs), automatically integrating uncertainty quantification ...
B. S. Schmidt, J. Rueda-Rueda, J. Galdon-Quíroga, M. García-Muñoz, P. A. Schneider, M. Salewski, the ASDEX Upgrade Team   +6 more
doaj   +1 more source

Recent Developments in the ASDEX Upgrade DAQ and RP Environment

, 2005
The ASDEX Upgrade data acquisition environment has been extended by new diagnostics which considerably increase the amount of data acquired. The new diagnostics, as well as the server, storage, and network upgrades are presented.
Behler, K. ; https://orcid.org/
core  

NBI-driven Alfvénic modes at ASDEX Upgrade

, 2012
A large variety of electromagnetic modes excited by NBI-generated energetic ions are observed in the early phase of many discharges at ASDEX Upgrade. In addition to the well-known reversed shear Alfven eigenmodes (RSAE) and the toroidal Alfven eigenmodes
Maraschek, M., Classen, I.G.J., M. García-Muñoz, Classen, I. G. J., Geiger, B., Curran, D., Igochine, V., Garcia-Munoz, M., McCarthy, P., Classen, I., ASDEX Upgrade Team, Lauber, P., Da Graca, S., Lauber, Ph.   +13 more
core   +2 more sources

Carbon balance and deuterium inventory from a carbon dominated to a full tungsten ASDEX Upgrade [PDF]

, 2009
The evolution of carbon/boron deposition and the deuterium inventory were determined during the transition from a carbon dominated to a full tungsten ASDEX Upgrade. In the carbon dominated machine about 17 g of carbon were deposited at the inner divertor
Wiltner, A., Hopf, C., Likonen, J., Sugiyama, K., Rohde, V., Mayer, M., Neu, R., Ramos, G., Chen, J.L., ASDEX Upgrade Team, Vainonen-Ahlgren, E., Chen, J., Gong, X., Likonen, Jari; id_orcid, Chen, J. L., Linding, S., Lindig, S.   +16 more
core   +1 more source

Determination of the stochastic layer properties induced by magnetic perturbations via heat pulse experiments at ASDEX upgrade

Nuclear Materials and Energy, 2017
A heat pulse experiment was carried out in the tokamak ASDEX Upgrade to estimate the stochastic layer width of a deuterium L-mode discharge with externally applied Magnetic Perturbations.
D. Brida, T. Lunt, M. Wischmeier, G. Birkenmeier, P. Cahyna, D. Carralero, M. Faitsch, Y. Feng, B. Kurzan, M. Schubert, B. Sieglin, W. Suttrop, E. Wolfrum   +12 more
doaj   +1 more source

Molecular contribution to the Dα emission in the divertor of the ASDEX Upgrade experiment

, 2007
Spectral line emission from the deuterium Balmer alpha line and from molecular deuterium in the Fulcher band, d(3)Pi(u)-> a(3)Sigma(+)(g), was studied in the outer divertor region of the ASDEX Upgrade plasma with a pair of relatively calibrated ...
Pugno, R., Rachlew, Elisabeth,, Fantz, U.,, Rachlew, E., Fantz, U., Menmuir, Sheena,, Dux, R., Menmuir, S., Fantz, Ursel, ASDEX Upgrade Team, Pugno, R.,, Dux, R.,   +11 more
core   +1 more source

DIVIMP simulations of 13C puffing experiments in ASDEX Upgrade L-mode plasma

, 2011
Carbon migration has been investigated both experimentally and numerically by injecting isotopically marked methane (13CH4) at trace levels into a series of identical low-density, low-confinement mode discharges at the last day of the 2007 ASDEX Upgrade ...
T. Kurki-Suonio, Hakola, Antti; id_orcid, Kurki-Suonio, T., Likonen, J., Makkonen, T., H.W. Müller, A. Hakola, Aho-Mantila, Leena, M. Groth, L. Aho-Mantila, Hakola, A., ASDEX Upgrade Team, J. Likonen, T. Makkonen, Likonen, Jari; id_orcid, Groth, M., Aho-Mantila, L., Krieger, K., Müller, H. W., K. Krieger, Müller, H.   +20 more
core   +2 more sources

Development and application of a predictive model for advanced tokamak scenario design

Nuclear Fusion
Advanced tokamak (AT) scenarios applying additional heating during the current ramp (early-heating) usually require many iterations if developed fully empirically.
Raphael Schramm, Alexander Bock, Emiliano Fable, Jörg Stober, Marc Maraschek, Maximilian Reisner, Rainer Fischer, Hartmut Zohm, the ASDEX-Upgrade Team   +8 more
doaj   +1 more source

Compact shunts for the upper divertor of ASDEX Upgrade [PDF]

AIP Advances
The compact shunts that are mounted in the upper divertor of ASDEX Upgrade are now operational and measure the thermocurrents generated by the temperature difference between the two target plates of the upper divertor cassette.
L. Giannone, T. Lunt, M. Bernert, A. Herrmann, A. Kallenbach, P. Leitenstern, K. H. Schuhbeck, S. Vorbrugg, I. Zammuto   +8 more
doaj   +1 more source