Collective Thomson scattering diagnostic at Wendelstein 7-X [PDF]
Review of Scientific Instruments, 2019 A Collective Thomson Scattering (CTS) diagnostic is installed at Wendelstein 7-X for ion temperature measurements in the plasma core. The diagnostic utilizes 140 GHz gyrotrons usually used for electron cyclotron resonance heating (ECRH) as a source of probing radiation.
D Moseev, M Stejner, T Stange
exaly +6 more sources
Collective Thomson Scattering Study Using Gyrotron in LHD
Plasma and Fusion Research, 2010 The collective Thomson scattering (CTS) is one of the most promising methods for evaluating the ion velocity distribution function. The study of CTS diagnostic has been started utilizing the gyrotron and antenna/transmission systems installed in LHD for high power local electron heating.
Hiroe Igami
exaly +5 more sources
Neutronics analysis of the ITER Collective Thomson Scattering system [PDF]
Fusion Engineering and Design, 2018 Abstract The Collective Thomson Scattering (CTS) will be the ITER diagnostic responsible for measuring the alpha-particle velocity distribution. Using mirrors, a powerful microwave beam is directed into the plasma via an opening in the plasma-facing wall. The microwaves will scatter off fluctuations in the plasma, and the scattered signal is recorded
A Lopes, R Luis, E B Klinkby
exaly +3 more sources
Bayesian inference of plasma parameters from collective Thomson scattering technique on a gas-puff near stagnation [PDF]
Scientific Reports, 2023 The Collective Thomson scattering technique has been implemented to study the stagnation of a single liner gas-puff. The plasma parameters are determined by theoretically modelling the scattering form factor in combination with Bayesian inference to ...
M. Escalona +4 more
doaj +2 more sources
Observation of Relativistic Effects in Collective Thomson Scattering [PDF]
Physical Review Letters, 2010 We observe relativistic modifications to the Thomson scattering spectrum in a traditionally classical regime: v(osc)/c = eE(0)/cmomega(0)
Ross, J S +7 more
openaire +3 more sources
Nuclear Engineering and Technology, 2020 The feasibility of the particle-in-cell (PIC) method is assessed to simulate the non-collective phenomena like non-collective Thomson scattering (TS). The non-collective TS in the laser-plasma interaction, which is related to the single-particle behavior,
F. Moradi Zamenjani +3 more
doaj +3 more sources
Direct observations of pure electron outflow in magnetic reconnection [PDF]
Scientific Reports, 2022 Magnetic reconnection is a universal process in space, astrophysical, and laboratory plasmas. It alters magnetic field topology and results in energy release to the plasma.
K. Sakai +23 more
doaj +2 more sources
Observation of plasma inflows in laser-produced Sn plasma and their contribution to extreme-ultraviolet light output enhancement [PDF]
Scientific Reports, 2023 Plasma dynamics are governed by electron density (n e), electron temperature (T e), and radiative energy transfer as well as by macroscopic flows.
Kentaro Tomita +5 more
doaj +2 more sources
Photon yield of superradiant inverse Compton scattering from microbunched electrons
New Journal of Physics, 2022 Compact x-ray sources offering high-brightness radiation for advanced imaging applications are highly desired. We investigate, analytically and numerically, the photon yield of superradiant inverse Compton scattering from microbunched electrons in the ...
B H Schaap +3 more
doaj +1 more source
Observation and Modelling of the Onset of Parametric Decay Instabilities during Gyrotron Operation at ASDEX Upgrade [PDF]
EPJ Web of Conferences, 2019 We investigate parametric decay instabilities (PDIs) occurring for gyrotron radiation near the upper hybrid resonance at the ASDEX Upgrade tokamak.
Hansen S.K. +4 more
doaj +1 more source