Results 31 to 40 of about 15,988 (296)

Non-thermal processes in bowshocks of runaway stars. Application to Zeta Oph [PDF]

, 2012
Runaway massive stars are O- and B-type stars with high spatial velocities with respect to the interstellar medium. These stars can produce bowshocks in the surrounding gas.
del Valle, María Victoria, Romero, Gustavo E.   +1 more
core   +2 more sources

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

Advanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz, Maik Szafarska, René Gustus, Kai Möhwald, Hans Jürgen Maier   +4 more
wiley   +1 more source

Quasi-linear analysis of the extraordinary electron wave destabilized by runaway electrons

, 2014
Runaway electrons with strongly anisotropic distributions present in post-disruption tokamak plasmas can destabilize the extraordinary electron (EXEL) wave.
A. Budai, A. Kómár, A. Stahl, G. I. Pokol, Pankratov I. M., Parail V. V., Stix T. H., T. Fülöp   +7 more
core   +1 more source

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

Advanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source

Runaway Electron Control in FTU

, 2015
Experimental results on the position and current control of disruption generated runaway electrons (RE) in FTU are presented. A scanning interferometer diagnostic has been used to analyze the time evolution of the RE beam radial position and its instabilities.
Carnevale, D., Esposito, B., Gospodarczyk, M., Boncagni, L., Sassano, M., Galeani, S., Marocco, D., Panaccione, L., Tudisco, O., Bin, W., Cianfarani, C., Ferrò, G., Granucci, G., Gabrielli, A., Maddaluno, C., Martìn-Solìs, J. R., Popovic, Z., Martinelli, F., Pucella, G., Ramogida, G., Riva, M., Team, FTU   +21 more
openaire   +4 more sources

Radiation modeling and experimental validation of sub-cyclotron frequency microwave synchrotron radiation as a diagnostic tool for runaway electrons in present and future tokamaks

Nuclear Fusion
The microwave synchrotron radiation in the sub-cyclotron frequency region has been systematically validated as a diagnostic method for runaway electrons (>1 MeV) with radiation modeling and experiments on the DIII-D tokamak.
Guanying Yu, Gerrit Kramer, Deyong Liu, Claudio Marini, Andrey Lvovskiy, Xiaoliang Li, Xinhang Xu, Ruifeng Xie, Zeyu Li, Max Austin, Yilun Zhu, N.C. Luhmann Jr   +11 more
doaj   +1 more source

Theoretical simulation of high-voltage discharge with runaway electrons in sulfur hexafluoride at atmospheric pressure

Matter and Radiation at Extremes, 2016
The results of theoretical simulation of runaway electron generation in high-pressure pulsed gas discharge with inhomogeneous electric field are presented.
Andrey V. Kozyrev, Vasily Yu. Kozhevnikov, Natalia S. Semeniuk   +2 more
doaj   +1 more source

Parametric study of Alfvénic instabilities driven by runaway electrons during the current quench in DIII-D

Nuclear Fusion, 2023
To avoid or mitigate runaway electron (RE) beams in ITER, RE-driven instabilities are actively studied as a complimentary technique to massive material injection.
A. Lvovskiy, C. Paz-Soldan, N.W. Eidietis, A. Dal Molin, G.H. DeGrandchamp, E.M. Hollmann, J.B. Lestz, C. Liu, M. Nocente, D. Shiraki, X.D. Du   +10 more
doaj   +1 more source

INSTABILITIES DUE TO RUNAWAY ELECTRONS

Acta Physica Sinica, 1980
In this paper, the effect of acceleration of runaway electrons on the microscopic instabilities is discussed. The result shows that the mechanism of instabilities is no longer a simple wave-particle resonant effect. When the resonant velocity is far away from the boundaries of the velocity region of runaway electrons, the growth rate is not ...
null XIA MENG-FEN, null ZHOU RU-LING
openaire   +1 more source

Deterministic Detection of Single Ion Implantation

Advanced Engineering Materials, EarlyView.
Focused ion beam implantation with high detection efficiencies will enable the rapid and scalable fabrication of advanced spin‐based technologies such as qubits. This work presents the detection efficiencies of a wide range of ions implanted into solid‐state hosts, with efficiencies of >90% recorded for ion species and substrate combinations of ...
Mason Adshead, Lok Kan Wan, Maddison Coke, Janet Jacobs, Nicholas F. L. Collins, Mark C. Rosamond, Richard J. Curry   +6 more
wiley   +1 more source