Results 21 to 30 of about 1,068 (190)

Validation of EDGDE2D-EIRENE predicted 2D distributions of electron temperature and density against divertor Thomson scattering measurements in the low-field side divertor leg in DIII-D

Nuclear Materials and Energy, 2023
Comparisons of profiles of the electron temperature (Te), density (ne) and pressure (pe) measured with Divertor Thomson Scattering in DIII-D low-confinement mode discharges to predictions from the edge fluid code EDGE2D-EIRENE [1] show that the models ...
M. Groth, A.G. McLean, W.H. Meyer, A.W. Leonard, S.L. Allen, G. Corrigan, M.E. Fenstermacher, D. Harting, C.J. Lasnier, F. Scotti, H.Q. Wang, J.G. Watkins   +11 more
doaj   +1 more source

Two-Dimensional Thomson Scattering in Laser-Produced Plasmas

Instruments, 2023
We present two-dimensional (2D) optical Thomson scattering measurements of electron density and temperature in laser-produced plasmas. The novel instrument directly measures ne(x,y) and Te(x,y) in two dimensions over large spatial regions (cm2) with sub ...
Haiping Zhang, Jessica J. Pilgram, Carmen G. Constantin, Lucas Rovige, Peter V. Heuer, Sofiya Ghazaryan, Marietta Kaloyan, Robert S. Dorst, Derek B. Schaeffer, Christoph Niemann   +9 more
doaj   +1 more source

154 GHz Collective Thomson Scattering in LHD

154 GHz Collective Thomson Scattering in LHD
Collective Thomson scattering (CTS) was developed by using a 154 GHz gyrotron, and the first data has been obtained. Already, 77 GHz CTS has worked successfully. However, in order to access higher density region, 154 GHz option enhances the usability that reduces the refraction effect, which deteriorates in the local measurements.
SHIMOZUMA, Takashi, KUBO, Shin, Saito, T., TANAKA, Kenji, Abramovic, I., Nishiura, M., Moseev, D.   +6 more
openaire   +1 more source

Collective Thomson scattering system for determination of ion properties in a high flux plasma beam [PDF]

, 2016
A collective Thomson scattering system has been developed for measuring ion temperature, plasma velocity and impurity concentration in the high density magnetized Magnum-PSI plasma beam, allowing for measurements at low temperature (4 x 10 20m3,while ...
De Temmerman, G., H. J. van der Meiden, Morgan, T. W., Jesko, K., Kantor, M.Y., T. W. Morgan, Morgan, T., van der Meiden, H.J., Vernimmen, J.W.M., Vernimmen, J. W. M., M. Y. Kantor, Vernimmen, J., K. Jesko, Meiden, H., J. W. M. Vernimmen, Bystrov, K., van der Meiden, H. J., Kantor, M. Y., K. Bystrov, G. De Temmerman, Bystrov, K.E., Morgan, T.W., Kantor, M.   +22 more
core   +1 more source

Material assessment for ITER's collective Thomson Scattering first mirror [PDF]

2015 4th International Conference on Advancements in Nuclear Instrumentation Measurement Methods and their Applications (ANIMMA), 2015
ITER's Collective Thomson Scattering (CTS) system is a diagnostic instrument that will measure the plasma density and velocity through Thomson scattering of microwave radiation. Some of the key components of the CTS are quasioptical mirrors used to produce astigmatic beam patterns, which have impact on the strength and spatial resolution of the ...
Santos, R., Policarpo, H., Gonçalves, B., Varela, P., Nonbøl, Erik, Klinkby, Esben Bryndt; id_orcid 0000-0002-1908-5644, Lauritzen, Bent; id_orcid 0000-0001-7173-1650, Romanets, Y., Luis, R., Vaz, P.   +9 more
openaire   +2 more sources

Lattice design and beam dynamics of a storage ring for a Thomson scattering x-ray source

Physical Review Accelerators and Beams, 2018
TTX-II (Tsinghua Thomson Scattering X-Ray Source Phase II) is a Thomson scattering based x-ray source currently under development at the accelerator laboratory in Tsinghua University. The circumference of the storage ring is 5.668 m.
Tenghui Rui, Wenhui Huang
doaj   +1 more source

Collective Thomson scattering model for arbitrarily drifting bi-Maxwellian velocity distributions

AIP Advances, 2019
In this paper we derive the equations of collective Thomson scattering (CTS) for an arbitrarily drifting magnetized plasma described by a bi-Maxwellian distribution.
I. Abramovic, M. Salewski, D. Moseev
doaj   +1 more source

Simulation of the interaction of intense ultrashort X-ray laser pulses with micro-sized Al targets

Results in Physics, 2021
We study the interaction of extremely short and high-intensity X-ray pulses with a 1.0μm thick Al foil. Four pulse lengths – 100 fs, 200 fs, 300 fs, and 400 fs – are considered. The photon energy is 1830 eV and the pulse intensity is 1017W/cm2.
Mohammed Shihab, Yasmine Adel, Nabil M. El-Siragy   +2 more
doaj   +1 more source

Progress of microwave collective Thomson scattering in LHD [PDF]

Journal of Instrumentation, 2015
Microwave collective Thomson scattering (CTS) by using a 77 GHz gyrotron is routinely working in LHD and the improvements of the system is now underway. The targets of this diagnostic are measurements of energetic fast ion distribution and ion ratio.
K. Tanaka, M. Nishiura, S. Kubo, T. Shimozuma, T. Saito   +4 more
openaire   +1 more source

Design and performance of the collective Thomson scattering receiver at ASDEX Upgrade [PDF]

Review of Scientific Instruments, 2012
Here we present the design of the fast-ion collective Thomson scattering receiver for millimeter wave radiation installed at ASDEX Upgrade, a tokamak for fusion plasma experiments. The receiver can detect spectral power densities of a few eV against the electron cyclotron emission background on the order of 100 eV under presence of gyrotron stray ...
Furtula, Vedran, Salewski, Mirko; id_orcid 0000-0002-3699-679X, Leipold, Frank, Michelsen, Poul, Korsholm, Søren Bang; id_orcid 0000-0001-7160-8361, Meo, Fernando, Moseev, Dmitry, Nielsen, Stefan Kragh, Stejner Pedersen, Morten, Johansen, Tom Keinicke; id_orcid 0000-0001-8182-1051   +9 more
openaire   +2 more sources