Concept
Réflectomètre
Publications associées (33)
Validation of short-pulse reflectometry turbulence measurements with a synthetic diagnostic
Stefano Coda, Stephan Brunner, Oleg Krutkin, Umesh Kumar, Mackenzie Peter-Fulford Van Rossem, Samuele Mazzi
Experimental measurements of the turbulence amplitude utilizing a short pulse reflectometry method are presented. Two discharges with shaped plasma possessing opposite signs of triangularity are considered and a higher turbulence amplitude is found in the ...
Bristol2024Electromagnetic time reversal for online partial discharge location in power cables: Influence of interfering reflections from grid components
Marcos Rubinstein, Farhad Rachidi-Haeri
In online single-sided partial discharge (PD) location, the measured PD reflection patterns are affected by the characteristics of all the components of the associated power network. This paper analyses the performance of a PD location method based on elec ...
2024An Effective EMTR-Based High-Impedance Fault Location Method for Transmission Lines
This article summarizes the electromagnetic time-reversal (EMTR) technique for fault location, and further numerically validates its effectiveness when the fault impedance is negligible. In addition, a specific EMTR model considering the fault impedance is ...
2021High resolution density pedestal measurements during edge localized modes by short-pulse reflectometry in the TCV tokamak
Stefano Coda, Benoît Labit, Laurie Porte, Pedro Andres Molina Cabrera
This publication presents high spatio-temporal resolution (mm/μs) density profile measurements of the pedestal top during type I, III, and small edge localized mode (ELM) H- mode plasmas in the Tokamak à Configuration Variable (TCV). These measurements wer ...
2021Tokamak plasma edge studies by microwave short-pulse reflectometry and backscattering
Moving towards an increased understanding of the dynamic processes in the edge of
tokamak plasmas requires continuous innovation in diagnostic capabilities, pushing the
envelope in both spatial and temporal dimenstions. Plasma density and rotation, and
the ...
EPFL2019Tower and Path-Dependent Voltage Effects on the Measurement of Grounding Impedance for Lightning Studies
Marcos Rubinstein, Antonio Sunjerga, Hamidreza Karami, Keyhan Sheshyekani
We present an analysis aimed at evaluating the effect of the presence of the tower on the measurement of the grounding impedance. The Numerical Electromagnetics Code NEC-4 is used for the full-wave modeling of the structure including the tower and its foot ...
2019