coherent scattering

Bistatic coherent scattering from rough soils with application to GNSS reflectometry

We present and discuss an electromagnetic model for the description of the coherent scattering from bare soils illuminated by a radar system under arbitrary bistatic geometries. The scattering problem is solved under the Kirchhoff approximation (KA) accounting for both the sphericity of the wavefront of the incident wave and the radiation pattern of the transmitting and receiving antennas. We propose here a general formulation and solution of the scattering problem applicable to an arbitrary bistatic geometry.

A 1 m3 gas time projection chamber with optical readout for directional dark matter searches. The CYGNO experiment

The aim of the CYGNO project is the construction and operation of a 1 m3 gas TPC for directional dark matter searches and coherent neutrino scattering measurements, as a prototype toward the 100-1000 m3 (0.15-1.5 tons) CYGNUS network of underground experiments. In such a TPC, electrons produced by dark-matter-or neutrino-induced nuclear recoils will drift toward and will be multiplied by a three-layer GEM structure, and the light produced in the avalanche processes will be readout by a sCMOS camera, providing a 2D image of the event with a resolution of a few hundred micrometers.

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