Alice Deschamps

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Absfracf-The principles of ray optics and, in more detail, some selected applications of ray techniques to electromagnetic8 are reviewed briefly. It is shown how a systematic use of matrix representation for the wavefront curvature and for its transformations simplify the handling of arbitrary pencils of rays and, consequently, the field computations. The(More)
Shear-wave polarization analysis has been performed on data from twelve earthquakes recorded in central Italy. These data are part of a set of high quality seismograms recorded by a three-component digital network installed in Abruzzo region after a Ms = 5.8 earthquake on 7 May 1984. Analysis performed on 2 to 6 Hz bandpass-filtered seismograms reveals(More)
The Touzi decomposition [1] is investigated for wetland characterization. Like the Cloude α scattering type, the magnitude αs of the symmetric scattering is not effective for vegetation type discrimination. The phase Φαs of the symmetric scattering type has to be used for enhanced characterization of wetland vegetation species. A new tool is introduced for(More)
Using a balloon-borne 60 cm telescope equipped with an SIS receiver we have searched for the 425 GHz molecular oxygen line in the NGC7538 and the W51 regions. The experiment was technically successful (confirmed by the detection of the 13CO (4–3) line at 440 GHz), but we failed to detect emission from molecular oxygen. The inferred upper limits of the O2/CO(More)
A novel algorithm to reconstruct neutrino-induced particle showers within the ANTARES neutrino telescope is presented. The method achieves a median angular resolution of [Formula: see text] for shower energies below 100 TeV. Applying this algorithm to 6 years of data taken with the ANTARES detector, 8 events with reconstructed shower energies above 10 TeV(More)
The Touzi decomposition [1] is investigated for wetland characterization. Like the Cloude α scattering type, the magnitude αs of the symmetric scattering is not effective for vegetation type discrimination. The phase Φαs of the symmetric scattering type has to be used for enhanced characterization of wetland vegetation species. A new tool is introduced for(More)
An algorithm is presented, that provides a fast and robust reconstruction of neutrino induced upward-going muons and a discrimination of these events from downward-going atmospheric muon background in data collected by the ANTARES neutrino telescope. The algorithm consists of a hit merging and hit selection procedure followed by fitting steps for a track(More)
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