Results 81 to 90 of about 452,681 (253)

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

The 64 Mpixel wide field imager for the Wendelstein 2m Telescope: Design and Calibration

, 2014
The Wendelstein Observatory of Ludwig Maximilians University of Munich has recently been upgraded with a modern 2m robotic telescope. One Nasmyth port of the telescope has been equipped with a wide-field corrector which preserves the excellent image ...
Bender, Ralf, Goessl, Claus, Hopp, Ulrich, Kosyra, Ralf, Lang-Bardl, Florian, Riffeser, Arno, Seitz, Stella   +6 more
core   +1 more source

Experimental Results of the Novel 1.5-MW-Class 140-GHz Continuous-Wave Gyrotron for the Wendelstein 7-X Stellarator

IEEE Electron Device Letters
In this work, we present the achievements obtained during the commissioning phase of the newly developed 140-GHz continuous-wave tube TH1507U at the gyrotron test stand of the electron-cyclotron resonance heating facility of the Wendelstein 7-X ...
S. Ponomarenko, H. Laqua, K. Avramidis, G. Gantenbein, J. Gontard, F. Hollmann, S. Illy, M. I. J. J. Z. C. Ioannidis, I. J. J. Senior Member, S. Kohler, L. Krier, A. Leggieri, F. Legrand, G. Lietaer, C. Liévin, S. Marsen, D. Moseev, F. Noke, T. Rzesnicki, T. Stange, L. F. I. M. Thumm, R. Wolf, J. Jelonnek, Z. Ioannidis   +23 more
semanticscholar   +1 more source

Microlensing events from the 11-year observations of the Wendelstein Calar Alto Pixellensing Project

, 2015
We present the results of the decade-long M31 observation from the Wendelstein Calar Alto Pixellensing Project (WeCAPP). WeCAPP has monitored M31 from 1997 till 2008 in both R- and I-filters, thus provides the longest baseline of all M31 microlensing ...
Bender, R., Koppenhoefer, J., Lee, C. -H., Riffeser, A., Seitz, S.   +4 more
core   +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

1RXSJ062518.2+733433: A bright, soft intermediate polar

, 2003
We present the results of 50 hours time-resolved R-band photometry of the ROSAT all-sky survey source 1RXSJ062518.2+733433. The source was identified by Wei et al. (1999) as a cataclysmic variable.
Hambaryan, V., Krumpe, M., Schwarz, R., Schwope, A. D., Staude, A.   +4 more
core   +2 more sources

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

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