Results 61 to 70 of about 3,977 (219)

Wendelstein 7-X

, 2016
Ursprünglich hatte ich vor gut zwei Wochen einen kleinen Blog-Beitrag über Wendelstein 7-X schreiben wollen: Immerhin war Angela Merkel an das Max-Planck-Institut für Plasmaphysik (IPP) Greifswald gereist, um die Versuchsanlage Wendelstein 7-X in Betrieb zu nehmen. Schließlich ist unsere Bundeskanzlerin nicht nur promovierte Physiko-Chemikerin, sondern
openaire   +3 more sources

Statistical analysis of plasma filaments in the island divertor of Wendelstein 7-X

Nuclear Fusion, 2023
Plasma filaments have been measured with alkali beam emission spectroscopy in the plasma edge, divertor island, and scrape-off layer of Wendelstein 7-X.
B. Csillag, S. Zoletnik, C. Killer, M. Vecsei, G. Anda, D. Dunai, S. Hegedus, D. Refy, D. Nagy, M. Otte, the W7-X Team   +10 more
doaj   +1 more source

Implications of Innovative Nuclear Technologies on Ghana’s Nuclear Future

Science and Technology of Nuclear Installations, Volume 2026, Issue 1, 2026.
Innovations in nuclear technology have the potential to play a transformative role in Ghana’s pursuit of a secure, reliable and low‐carbon energy future. This review examines recent global advances in nuclear reactor technologies, fuel cycle systems, waste management approaches, regulatory practices and digital applications and assesses their relevance
R. G. Abrefah, B. K. A. Baiden, F. Ameyaw, S. A. Zakaria, Doddy Kastanya   +4 more
wiley   +1 more source

Thermal‐Hydraulic Assessment of W7‐X Plasma Vessel Venting System in Case of 40 mm In‐Vessel LOCA

Science and Technology of Nuclear Installations, Volume 2015, Issue 1, 2015., 2015
This paper presents assessment of the capacity of W7‐X venting system in response to in‐vessel LOCA, rupture of 40 mm diameter pipe during operation mode “baking.” The integral analysis of the coolant release from the cooling system, pressurisation of PV, and response of the venting system is performed using RELAP5 code.
E. Urbonavičius, T. Kaliatka, Massimo Zucchetti   +2 more
wiley   +1 more source

Real-Time Detection of Overloads on the Plasma-Facing Components of Wendelstein 7-X

Applied Sciences, 2021
Wendelstein 7-X (W7-X) is the leading experiment on the path of demonstrating that stellarators are a feasible concept for a future power plant. One of its major goals is to prove quasi-steady-state operation in a reactor-relevant parameter regime.
Aleix Puig Sitjes, Marcin Jakubowski, Dirk Naujoks, Yu Gao, Peter Drewelow, Holger Niemann, Joris Fellinger, Victor Moncada, Fabio Pisano, Chakib Belafdil, Raphael Mitteau, Marie-Hélène Aumeunier, Barbara Cannas, Josep Ramon Casas, Philippe Salembier, Rocco Clemente, Simon Fischer, Axel Winter, Heike Laqua, Torsten Bluhm, Karsten Brandt, The W7-X Team   +21 more
doaj   +1 more source

Long‐Term Photovoltaic System Performance in Cold, Snowy Climates

Progress in Photovoltaics: Research and Applications, Volume 33, Issue 11, Page 1180-1197, November 2025.
We review degradation rates of photovoltaic systems located in cold humid continental, subarctic, and tundra climates and analyze three new photovoltaic systems > 60° N in Alaska and Canada with each with between 5 and 16 years of data. Overall, PV systems located in cold climates have a median degradation rate of −0.33%/year.
Erin M. Tonita, Dirk C. Jordan, Silvana Ovaitt, Henry Toal, Karin Hinzer, Christopher Pike, Chris Deline   +6 more
wiley   +1 more source

Turbulence-reduced high-performance scenarios in Wendelstein 7-X

Nuclear Fusion
In the Wendelstein 7-X (W7-X) stellarator, turbulence is the dominant transport mechanism in most discharges. This leads to a ‘clamping’ of ion temperature over a wide range of heating power, predominantly flat density profiles where hollow profiles ...
O.P. Ford, M. Beurskens, S.A. Bozhenkov, S. Lazerson, L. Vanó, A. Alonso, J. Baldzuhn, C.D. Beidler, C. Biedermann, R. Burhenn, G. Fuchert, D. Hartmann, M. Hirsch, A. Langenberg, H. Laqua, P. McNeely, N. Pablant, E. Pasch, F. Reimold, T. Romba, N. Rust, R. Schroeder, E.R. Scott, T. Stange, H.M. Smith, D. Gradic, R.C. Wolf, D. Zhang, the W7-X Team   +28 more
doaj   +1 more source

Full-flux-surface effects on electrostatic turbulence in Wendelstein 7-X-like plasmas

Nuclear Fusion, 2023
We present the first nonlinear, gyrokinetic, surface-global simulations of a Wendelstein 7-X-like stellarator with kinetic electrons. As a first application, we investigate the interplay between Ion Temperature Gradient (ITG) and Trapped Electron Mode ...
Felix Wilms, Alejandro Bañón Navarro, Frank Jenko   +2 more
doaj   +1 more source

Modeling resistive-inductive evolution of currents in Wendelstein 7-X

Nuclear Fusion
This research investigates the temporal evolution of the toroidal plasma current in the Wendelstein 7-X (W7-X) stellarator under different heating, fueling, and current drive scenarios.
L. van Ham, S.A. Lazerson, J.C. Schmitt, B.F. Lee, M. Beurskens, K.J. Brunner, N. Chaudhary, G. Fuchert, J. Geiger, M. Hirsch, J. Knauer, A. Langenberg, J.W. Oosterbeek, N. Pablant, E. Pasch, K. Rahbarnia, G. Weir, the W7-X Team   +17 more
doaj   +1 more source

Fast and Invertible Simplicial Approximation of Magnetic‐Following Interpolation for Visualizing Fusion Plasma Simulation Data

Computer Graphics Forum, Volume 44, Issue 3, June 2025.
Abstract We introduce a fast and invertible approximation for fusion plasma simulation data represented as 2D planar meshes with connectivities approximating magnetic field lines along the toroidal dimension in deformed 3D toroidal spaces. Scientific variables (e.g., density and temperature) in these fusion data are interpolated following a complex ...
Congrong Ren, Robert Hager, Randy Michael Churchill, Albert Mollén, Seung‐Hoe Ku, Choong‐Seock Chang, Hanqi Guo   +6 more
wiley   +1 more source