Results 121 to 130 of about 311,592 (233)

Real-time wall conditioning by controlled injection of boron and boron nitride powder in full tungsten wall ASDEX Upgrade

Nuclear Materials and Energy, 2019
In ASDEX Upgrade with full-tungsten wall, boronization is an important tool to control tungsten sources and allow reliable operation at low collisionality. The duration of the beneficial effects is limited by the erosion of the boron layer, in particular
A. Bortolon, V. Rohde, R. Maingi, E. Wolfrum, R. Dux, A. Herrmann, R. Lunsford, R. McDermott, A. Nagy, A. Kallenbach, D. Mansfield, R. Nazikian, R. Neu   +12 more
semanticscholar   +1 more source

Tungsten behaviour in radiatively cooled plasma discharges in ASDEX Upgrade [PDF]

, 2011
In the all W ASDEX Upgrade impurities are injected routinely for radiative cooling. Amongst the different species used, nitrogen has been shown to provide the best cooling effect, while maintaining or even improving the energy confinement.
G. J. van Rooij, Potzel, S., Fischer, R., Janzer, A., Dux, R., Pütterich, T., Neu, R., ASDEX Upgrade Team, Sertoli, M., van Rooij, G., Müller, H. W., Fuchs, J. C., Fuchs, J., Müller, H., Kallenbach, A.   +14 more
core  

Dynamic behaviour of the H-mode in ASDEX upgrade

, 1994
Dynamic behaviour of the H-mode in ASDEX upgrade / H. Zohm ... - In: Plasma physics and controlled fusion. 36. 1994. S.
Herrmann, A., Zohm, Hartmut, Salmon, N., Ryter, F., Fuchs, C., Kaufmann, M., Neuhauser, J., Zohm, H.   +7 more
core   +1 more source

Divertor enrichment of recycling impurity species (He, N2, Ne, Ar, Kr) in ASDEX Upgrade H-modes

Nuclear Fusion
Particle balance calculations are done for the seeding species N _2 , Ne, Ar, Kr as well as He with the aim of obtaining a realistic description of the divertor and core plasma impurity content.
A. Kallenbach, R. Dux, S.S. Henderson, C. Tantos, M. Bernert, C. Day, R.M. McDermott, V. Rohde, A. Zito, the ASDEX Upgrade Team   +9 more
doaj   +1 more source

Maximum likelihood bolometry for ASDEX upgrade experiments

Bolometry is an essential diagnostic for calculating the power balances and for the understanding of different physical aspects of tokamak experiments. The reconstruction method based on the Maximum Likelihood (ML) principle, developed initially for JET,
Spolladore, Luca, Bernert, Matthias, Craciunescu, Teddy, Rossi, Riccardo, Henderson, Stuart, David, Pierre, Wyss, Ivan, Murari, Andrea, Peluso, Emmanuele, Gelfusa, Michela, Fevrier, Olivier   +10 more
core   +1 more source

Design and stress analysis of in-vessel saddle coils for MHD control in ASDEX Upgrade

, 2008
A set of in-vessel saddle coils for MHD control in ASDEX Upgrade is described. A conventional coil design is chosen which employs a five turn square cross-section copper conductor with central cooling bore embedded in an epoxy resin.
Herrmann, A., Streibl, B., Neubauer, O., Seidel, U., Suttrop, W., Vierle, T., Rott, M., ASDEX Upgrade Team   +7 more
core   +2 more sources

The high field side high density region in SOLPS-modeling of nitrogen-seeded H-modes in ASDEX Upgrade

Nuclear Materials and Energy, 2017
The understanding of divertor physics and the evolution of divertor detachment is crucial for developing the capability to model power exhaust in current experiments and reliably predict it for future fusion devices.
F. Reimold, M. Wischmeier, S. Potzel, L. Guimarais, D. Reiter, M. Bernert, M. Dunne, T. Lunt   +7 more
doaj   +1 more source

Advances, Challenges, and Future Perspectives of Microwave Reflectometry for Plasma Position and Shape Control on Future Nuclear Fusion Devices. [PDF]

Sensors (Basel), 2023
Gonçalves B, Varela P, Silva A, Silva F, Santos J, Ricardo E, Vale A, Luís R, Nietiadi Y, Malaquias A, Belo J, Dias J, Ferreira J, Franke T, Biel W, Heuraux S, Ribeiro T, De Masi G, Tudisco O, Cavazzana R, Marchiori G, D'Arcangelo O.   +21 more
europepmc   +1 more source

First neutron spectroscopy measurements in the ASDEX Upgrade tokamak

, 2011
: A compact neutron spectrometer based on the liquid scintil-lator BC501A has been installed on the ASDEX Upgrade tokamak. The aim is to measure neutron energy distribution functions as footprints of fast ions distribution functions, generated mainly via
Gagnon-Moisan, F., Zimbal, A., H. Schuhmacher, Neu, R., Schuhmacher, H., Tardini, G., A. Zimbal, ASDEX Upgrade Team, B. Esposito, The Asdex Upgrade Team, G. Tardini, F. Gagnon-moisan, D. Marocco, Esposito, B., Marocco, D., R. Neu   +15 more
core   +2 more sources

Mapping of the ASDEX Upgrade Operational Space using Clustering Techniques

, 2007
Two clustering techniques are used to map ASDEX Upgrade high-dimensional operational space. The produced mapping exploits the similarities of the data by grouping similar data items together, allowing to identify characteristic regions for plasma ...
FANNI, ALESSANDRA, Zedda M. K, CANNAS, BARBARA, Camplani M, SIAS, GIULIANA, Pautasso G, Sonato P, ASDEX Upgrade Team   +7 more
core