Results 91 to 100 of about 1,068 (190)

Measurements of ion temperature and plasma hydrogenic composition by collective Thomson scattering in neutral beam heated discharges at TEXTOR

, 2013
A method is developed to perform plasma composition and ion temperature measurements across the plasma minor radius in TEXTOR based on ion cyclotron structures in collective Thomson scattering spectra. By gradually moving the scattering volume, we obtain
Korsholm, S.B., Stejner Pedersen, Morten, Korsholm, SB, de M. Baar, de Baar, M., Salewski, Mirko, Moseev, D., Salewski, M., Nielsen, Stefan Kragh, Nielsen, SK, Bindslev, H., team, TEXTOR, Meo, F., Moseev, Dmitry, Meo, F, TEXTOR team, Salewski, M, Stejner, M., Delabie, E.G., Michelsen, P. K., Leipold, F, Moseev, D, Leipold, Frank, Bürger, A, Leipold, F., Michelsen, P.K., Baar, MR Marco de, Delabie, EG Ephrem, Stejner, M, Nielsen, S.K., Bürger, A., Michelsen, PK, Delabie, E., Baar, de, M.R., Korsholm, S. B., Michelsen, Poul, Korsholm, Søren Bang, Meo, Fernando   +37 more
core   +1 more source

Evolution of turbulence and transport in EAST H-mode plasmas with Te/Ti ∼ 1

Nuclear Fusion
The enhanced heat transport in ion channel is observed as the temperature ratio T _e / T _i increased from 1.0 to 2.2 in Experimental Advanced Superconducting Tokamak H-mode plasmas.
Y.F. He, J.P. Qian, P. Li, X.Z. Gong, X. Jian, J.L. Chen, Y. Lei, M.Q. Wu, T. Zhang, W.Y. Xu, W. Zhang, S.X. Wang, H.L. Zhao, G.S. Li, K.N. Geng, Z.C. Lin, X.C. Wang, the EAST Team   +17 more
doaj   +1 more source

About collective Thomson scattering

, 2015
We propose here a new theoretical treatment of the light scattering by Thomson effect on a large number of electrons, like it is used as measurement tool on plasma researches. Our treatment lies on an statistical analysis of the electric field produced by the electrons and shows that the resulting field is 10 times smaller at least than that evaluated ...
openaire   +1 more source

Orbit tomography in constants-of-motion phase-space

Nuclear Fusion
Tomographic reconstructions of a 3D fast-ion constants-of-motion phase-space distribution function are computed by inverting synthetic signals based on projected velocities of the fast ions along the diagnostic lines of sight.
M. Rud, D. Moseev, F. Jaulmes, K. Bogar, Y. Dong, P.C. Hansen, J. Eriksson, H. Järleblad, M. Nocente, G. Prechel, B.C.G. Reman, B.S. Schmidt, A. Snicker, L. Stagner, A. Valentini, M. Salewski   +15 more
doaj   +1 more source

Plasma rotation and ion temperature measurements by collective Thomson scattering at ASDEX Upgrade

, 2015
We present the first deuterium ion temperature and rotation measurements by collective Thomson scattering at ASDEX Upgrade. The results are in general agreement with boron-based charge exchange recombination spectroscopy measurements and consistent with ...
Stejner, M., Stejner Pedersen, Morten, Wagner, D., McDermott, R., Korsholm, S., Leipold, Frank, Leipold, F., Jacobsen, Asger Schou, McDermott, R. M., Salewski, Mirko, Jacobsen, A., Rasmussen, Jesper, Schubert, Martin, Salewski, M., Nielsen, Stefan Kragh, Stober, J., Michelsen, P., Rasmussen, J., Schubert, M., Wagner, D. H., Nielsen, S., Michelsen, Poul, Korsholm, Søren Bang   +22 more
core   +1 more source

Fast-ion velocity distributions in JET measured by collective Thomson scattering

, 1999
Results on fast ion diagnosis by collective Thomson scattering at JET are presented. 400 kW, 2 mm radiation was scattered in plasmas with energetic proton minority populations heated by 4-8 MW ion cyclotron resonance heating.
Egedal, J., Fessey, J. A., Bindslev, H., Hughes, T. P., Hoekzema, J. A., Machuzak, J. S.   +5 more
core  

Collective effects in the back-scattering Thomson between a laser pulse and a relativistic electron beam

, 2006
Collective effects in the radiation emission via Thomson back-scattering of an intense optical laser pulse by high brightness electron beams are analyzed. The micro-bunching of the electron beam on the scale of the wavelength of the emitted radiation and
V. Petrillo, A. Bacci, L. Serafini, C. Maroli   +3 more
core   +1 more source

Fast Ion Dynamics in ASDEX Upgrade and TEXTOR Measured by Collective Thomson Scattering [PDF]

, 2011
Fast ions are an essential ingredient in burning nuclear fusion plasmas: they are responsible for heating the bulk plasma, carry a significant amount of plasma current and moreover interact with various magnetohydrodynamic (MHD) instabilities.
Moseev, Dmitry
core  

Spectral Fitting Approach for Collective Thomson Scattering Experiments on an Extreme Ultraviolet Plasma Light Source

, 2022
Modern computer chips as well as the entire semiconductor industry rely on Extreme Ultraviolet Lithography (EUVL) at 13.5 nm ± 1% to create finer resolution features. In the industrial settings, the 13.5 nm photons are generated by a plasma following the
Rauschenberger, Alyssa K
core  

Conceptual Study of a Collective Thomson Scattering Diagnostic for SPARC

26 pages, 10 figures, submitted to Nuclear ...
Mentz-Jørgensen, Mads, Ragona, Riccardo, Korsholm, Søren B., Rasmussen, Jesper   +3 more
openaire   +2 more sources