Intrinsic differences in the processes involved in the electromagnetic and hadronic shower development in the atmosphere have been evidenced by means of a careful analysis of the event image given by the ARGO-YBJ detector. The images have been analyzed at different length scales and their multifractal nature has been studied. The use of the multiscale approach together with a properly designed and trained Artificial Neural Network, allowed us to obtain a good discrimination power. If confirmed by further studies on different event categories, this result would allow to nearly double the detector sensitivity to gamma-ray sources.

Aielli, G., Bacci, C., Bartoli, B., Bernardini, P., Bi, X.j., Bleve, C., et al. (2004). Multiscale image analysis applied to gamma/hadron discrimination for vhe gamma-ray astronomy with argo-ybj. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, 525, 132-136 [10.1016/j.nima.2004.03.052].

Multiscale image analysis applied to gamma/hadron discrimination for vhe gamma-ray astronomy with argo-ybj.

BUSSINO, Severino Angelo Maria;MARI, Stefano Maria;Montini P;Ruggieri F;
2004-01-01

Abstract

Intrinsic differences in the processes involved in the electromagnetic and hadronic shower development in the atmosphere have been evidenced by means of a careful analysis of the event image given by the ARGO-YBJ detector. The images have been analyzed at different length scales and their multifractal nature has been studied. The use of the multiscale approach together with a properly designed and trained Artificial Neural Network, allowed us to obtain a good discrimination power. If confirmed by further studies on different event categories, this result would allow to nearly double the detector sensitivity to gamma-ray sources.
2004
Aielli, G., Bacci, C., Bartoli, B., Bernardini, P., Bi, X.j., Bleve, C., et al. (2004). Multiscale image analysis applied to gamma/hadron discrimination for vhe gamma-ray astronomy with argo-ybj. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, 525, 132-136 [10.1016/j.nima.2004.03.052].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/120533
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