Results 161 to 170 of about 1,068 (190)

Collective Thomson Scattering at W7-AS

Plasma Physics and Controlled Fusion, 1997
Collective Thomson scattering (CTS) of electromagnetic radiation from thermal plasma fluctuations in principle allows the velocity distribution of plasma ions and its composition in the plasma to be measured. The use of powerful microwave radiation from gyrotrons opens new perspectives for the application of CTS, which is considered to be a promising ...
Suvorov, E., Holzhauer, E., Kasparek, W., Erckmann, V., Geist, T., Kick, M., Laqua, H., Rust, M.   +7 more
openaire   +3 more sources

Collective optical Thomson scattering in pulsed-power driven high energy density physics experiments (invited) [PDF]

Review of Scientific Instruments, 2021
Optical collective Thomson scattering (TS) is used to diagnose magnetized high energy density physics experiments at the Magpie pulsedpower generator at Imperial College London.
L G Suttle, J D Hare, J W D Halliday
exaly   +2 more sources

Novel small-angle collective Thomson scattering system

Applied Optics, 1985
A Thomson scattering opticals system is described with the following characteristics: (1) it allows scattering angles down to 1 mrad before collection optics interfere with beam dumping; (2) it gives excellent k resolution for angles of > or approximately 1.5 mrad; (3) it collects light from a scattering volume which can be variably positioned without ...
C E, Clayton, C, Darrow, C, Joshi
openaire   +2 more sources

Collection optics design for KSTAR Thomson scattering system

Review of Scientific Instruments, 2010
The collection optics designs are described for the Thomson scattering diagnostic of the Korea superconducting tokamak advanced research (KSTAR) device. The optical systems collecting the light emission induced through the interaction between the plasma electrons and a laser beam are key components for the Thomson scattering system.
S, Oh, J H, Lee
openaire   +2 more sources

Detection of Ion Plasma Waves by Collective Thomson Scattering

Physical Review Letters, 1995
The first unambiguous experimental detection of ion plasma waves is reported. These short-wavelength ({ital k}{lambda}{sub De}{gt}1), purely electrostatic ion waves were first predicted by Tonks and Langmuir in 1929. The waves are observed in a long-scalelength ({ital L}{gt}10{sup 4}/{ital k}), multiply ionized ({ital Z}=22), laser-produced plasma. The
, Bauer, , Drake, , Estabrook, , Watt, , Wilke, , Baker   +5 more
openaire   +2 more sources

Mirror system for collecting Thomson-scattered light in a tangential direction

Applied Optics, 1994
We describe an optical system for collecting Thomson-scattering light in the tangential direction of a tokamak. The key part of the optics is a set of mirrors arranged as a Venetian blind. This system makes it possible to look around the corner of the tokamak vessel. Design considerations and test performance are presented.
Barth, C.J., Grobben, B.J. J., Verhaag, G.C. H. M.   +2 more
openaire   +2 more sources

Collective Thomson Scattering(CTS) System on ITER

1998
In a previous work the analysis1 on a possible CTS system on ITER has led to the following preliminary conclusions: two options can be taken into account seriously, i.e.
F. Orsitto, G. Giruzzi, S. Nowak
openaire   +1 more source

Status of Collective Thomson Scattering Experiment at Frascati Tokamak Upgrade (FTU)

2007 International Kharkiv Symposium Physics and Engrg. of Millimeter and Sub-Millimeter Waves (MSMW), 2007
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Lubyako LV, Granucci G, Grosso G, Orsitto FP, Shalashov A G, Suvorov E V, Tartari U, ECRH Team, FTU Team   +8 more
openaire   +3 more sources

Collection optics of JT-60SA edge Thomson scattering diagnostic

Review of Scientific Instruments
The mission of the JT-60SA project is to complement ITER’s capabilities by addressing the fundamental physics and engineering challenges necessary to develop a practical and reliable fusion power plant. Diagnostics play a pivotal role in achieving this mission, especially the Thomson Scattering (TS) diagnostic systems developed by a collaborative Japan–
F. A. D’Isa, A. Fassina, L. Giudicotti, S. Soare, H. Tojo, Y. Ohtani, M. Akimitsu, G. Crescenzio, M. Girardini, A. Slemer, A. Grossi, E. Mazzarolo, R. Pasqualotto   +12 more
openaire   +2 more sources

Fast Ion Dynamics Measured by Collective Thomson Scattering

2002
Magnetically confined fusion plasmas contain highly non-thermal populations of fast ions resulting from fusion reactions and plasma heating. With energies in the MeV range, two to three orders of magnitude above the bulk ion and electron energies, the fast ions typically carry 1/3 of the plasma kinetic energy and even more of the free energy.
H. Bindslev, L. Porte, J. A. Hoekzema, P. Woskov, D. Van Eester   +4 more
openaire   +1 more source