Results 11 to 20 of about 797,546 (295)

First principles of modelling the stabilization of microturbulence by fast ions [PDF]

, 2018
The observation that fast ions stabilize ion-temperature-gradient-driven microturbulence has profound implications for future fusion reactors. It is also important in optimizing the performance of present-day devices.
Abel, I. G., Highcock, E., Iantchenko, A., Pusztai, I., Subba, F., Wilkie, G. J.   +5 more
core   +3 more sources

Fast-ion Dα measurements of the fast-ion distribution (invited) [PDF]

Review of Scientific Instruments, 2010
The fast-ion Dα (FIDA) diagnostic is an application of charge-exchange recombination spectroscopy. Fast ions that neutralize in an injected neutral beam emit Balmer-α light with a large Doppler shift. The spectral shift is exploited to distinguish the FIDA emission from other bright sources of Dα light.
openaire   +4 more sources

A linear parameters study of ion cyclotron emission using drift ring beam distribution

Nuclear Fusion, 2023
Ion Cyclotron Emission (ICE) holds great potential as a diagnostic tool for fast ions in fusion devices. The theory of Magnetoacoustic Cyclotron Instability (MCI), as an emission mechanism for ICE, states that MCI is driven by a velocity distribution of ...
Haozhe Kong, Huasheng Xie, Jizhong Sun
doaj   +1 more source

Sympathetic and swap cooling of trapped ions by cold atoms in a MOT [PDF]

, 2011
A mixed system of cooled and trapped, ions and atoms, paves the way for ion assisted cold chemistry and novel many body studies. Due to the different individual trapping mechanisms, trapped atoms are significantly colder than trapped ions, therefore in ...
AT Grier, BM Smirnov, C Zipkes, C Zipkes, C Zipkes, FG Major, FHJ Hall, G Birkl, K Ravi, M Cetina, R Côté, R Côté, RE Olson, S Schmid, S Willitsch, T Holstein, WG Rellergert, WW Smith   +17 more
core   +1 more source

Fast-ion redistribution and loss due to edge perturbations in the ASDEX Upgrade, DIII-D and KSTAR tokamaks [PDF]

, 2013
The impact of edge localized modes (ELMs) and externally applied resonant and non-resonant magnetic perturbations (MPs) on fast-ion confinement/transport have been investigated in the ASDEX Upgrade (AUG), DIII-D and KSTAR tokamaks.
Asunta, O., Boom, J., Chen, X., Classen, I.G.J., Dux, R., Evans, T.E., Fietz, S., Fisher, R.K., Fuchs, C., García Muñoz, Manuel, Geiger, B., Hoelzl, M., Igochine, V., Jeon, Y.M., Kim, J., Kim, J.Y., Kurzan, B., Lazanyi, N., Lunt, T., McDermott, R. M., Nocente, M., Pace, D.C., Rhodes, T.L., Rodríguez Ramos, Mauricio, Shinohara, K., Suttrop, W., Viezzer, Eleonora, Willensdorfer, M., Wolfrum, E., Zeeland, M.A. van, Äkäslompolo, S.   +30 more
core   +1 more source

Fast Lithium Ion Conduction in Lithium Phosphidoaluminates [PDF]

Angewandte Chemie International Edition, 2020
AbstractSolid electrolyte materials are crucial for the development of high‐energy‐density all‐solid‐state batteries (ASSB) using a nonflammable electrolyte. In order to retain a low lithium‐ion transfer resistance, fast lithium ion conducting solid electrolytes are required.
Restle, TMF, Sedlmeier, C, Kirchhain, H, Klein, W, Raudaschl-Sieber, G, Deringer, VL, van Wüllen, L, Gasteiger, HA, Fässler, TF   +8 more
openaire   +6 more sources

Impact of interaction between RF waves and fast NBI ions on the fusion performance in JET DTE2 campaign

Nuclear Fusion, 2023
This work presents a study of the interaction between radio frequency (RF) waves used for ion cyclotron resonance heating and the fast deuterium (D) and tritium (T) neutral Beam injected (NBI) ions in DT plasma.
K.K. Kirov, C.D. Challis, E. De la Luna, J. Eriksson, D. Gallart, J. Garcia, M. Gorelenkova, J. Hobirk, P. Jacquet, A. Kappatou, Y.O. Kazakov, D. Keeling, D. King, E. Lerche, C. Maggi, J. Mailloux, P. Mantica, M. Mantsinen, M. Maslov, S. Menmuir, P. Siren, Z. Stancar, D. Van Eester, JET Contributors   +23 more
doaj   +1 more source

Fast Ion Conductors

Journal of the American Ceramic Society, 1979
The results of transmission electron microscopy and their relation to some practical aspects of Na β‐ nd β‐alumina solid electrolytes are reviewed. Grain and grain‐boundary morphology, crystallographic defects, nonstoichiometry, and second‐phase formation are discussed.
openaire   +2 more sources

Real-time implementation of the high-fidelity NBI code RABBIT into the discharge control system of ASDEX Upgrade

Nuclear Fusion, 2023
For the first time, a real-time capable NBI code, which has a comparable fidelity to the much more computationally expensive Monte Carlo codes such as NUBEAM, has been coupled to the discharge control system of a tokamak.
M. Weiland, R. Bilato, B. Sieglin, F. Felici, L. Giannone, O. Kudlacek, M. Rampp, M. Scheffer, W. Treutterer, T. Zehetbauer, the ASDEX Upgrade Team, the EUROfusion MST1 Team   +11 more
doaj   +1 more source

Modification of classical electron transport due to collisions between electrons and fast ions

, 2019
A Fokker-Planck model for the interaction of fast ions with the thermal electrons in a quasi-neutral plasma is developed. When the fast ion population has a net flux (i.e.
B. Appelbe, Biermann L., Braginskii S. I., C. Walsh, Hochstim A. R., J. Chittenden, M. Sherlock, O. El-Amiri, Shkarofsky I. P.   +8 more
core   +1 more source