List of Figures

• Schematic representation of the BeppoSAX satellite
• BeppoSAX ground segment operations
• BeppoSAX scientific payload
• Scheme of the PDS detecting and electronic units
• PDS detector plane view
• PDS/GRBM design
• PDS lateral shield view
• Mapping of the gain of LS1 at 122 keV
• ESTEC calibrations: radioactive sources set-up
• ESTEC calibrations: global set-up
• 60 keV angular light curves for the four LS
• 122 keV angular light curves for the four LS
• 166 keV angular light curves for the four LS
• 279 keV angular light curves for the four LS
• 392 keV angular light curves for the four LS
• 514 keV angular light curves for the four LS
• 662 keV angular light curves for the four LS
• 166 keV LS1 angular light curves at different elevation angles
• 166 keV LS2 angular light curves at different elevation angles
• 166 keV LS3 angular light curves at different elevation angles
• 166 keV LS4 angular light curves at different elevation angles
• LS3 angular light curves in the GRBM and AC bands at 60 keV
• LS3 angular light curves in the GRBM and AC bands at 122 keV
• LS3 angular light curves in the GRBM and AC bands at 166 keV
• LS3 angular light curves in the GRBM and AC bands at 279 keV
• LS3 angular light curves in the GRBM and AC bands at 392 keV
• LS3 angular light curves in the GRBM and AC bands at 514 keV
• LS3 angular light curves in the GRBM and AC bands at 662 keV
• LS1 line spectra at the various calibration energies
• LS3 line spectra at the various calibration energies
• LS3 spectra of the 60 keV source at different azimuthal angles.
• LS3 spectra of the 662 keV source at different azimuthal angles.
• ESTEC calibrations background variation with $\phi$
• ESTEC calibrations background spectra
• ESTEC NaI detector sources calibration spectra
• Germanium detector spectrum of the 662 keV source
• Gamma-ray interaction with matter
• Ideal detector spectra of a monochromatic gamma source
• NaI and CsI total linear absorption coefficients
• Various processes contributing to gamma-ray detectors response
• LS1 On-axis efficiency
• LS3 On-axis efficiency
• Analytical fitting of LS3 angular response at 60 keV
• Analytical fitting of LS3 angular response at 122 keV
• Analytical fitting of LS3 angular response at 166 keV
• Analytical fitting of LS3 angular response at 279 keV
• Analytical fitting of LS3 angular response at 392 keV
• Analytical fitting of LS3 angular response at 514 keV
• Analytical fitting of LS3 angular response at 662 keV
• LS1 channel to energy conversion
• LS3 channel to energy conversion
• LS1 Energy resolution.
• LS3 Energy resolution.
• Modelization of LS1 response at the various calibration energies
• Modelization of LS3 response at the various calibration energies
• LS1 simulated counts spectra for a $\alpha$ = -1 power-law source photon spectrum
• LS1 simulated counts spectra for a typical Band form source photon spectrum
• LS1 simulated counts spectra for a Crab-like source photon spectrum
• Response functions of the GRBM at 122 keV
• Typical GRBM on-orbit background in 1 s ratemeters
• GRB970228 as detected in the LS1 ratemeter
• GRBM detectors in-flight background energy spectra
• Sample of GRBs detected by the GRBM
• Crab Nebula occultation step in the GRBM detector LS3
• LS1 spectra before and after Crab nebula occultation
• LS1 - Relationship between the ratio of GRBM and AC counts and spectral index for on-axis source
• GRB970111 spectral evolution
• GRB980329 average count spectrum
• LS1 photon spectrum of the Crab
• WFC1 + GRBM/LS1 photon Crab spectrum
• BATSE sky distribution of the GRB
• Peak intensity distribution of the BATSE GRBs
• BeppoSAX GRBM and WFC light curves of GRB970228
• BeppoSAX MECS images of the GRB970228 afterglow
• BeppoSAX decay curve of the GRB970228 afterglow
• Error boxes for GRB970228
• WFC and GRBM light curves of GRB970508
• Decay law of the GRB970508 afterglow
• Light curve of the optical transient associated to GRB970508
• Error boxes of the two X-ray sources detected by BeppoSAX NFI
• WFC/GRBM Time averaged spectrum of GRB970111
• WFC/GRBM Time averaged spectrum of GRB970228
• WFC/GRBM Time averaged spectrum of GRB970402
• X and gamma time profiles of WFC+GRBM events (1)
• X and gamma time profiles of WFC+GRBM events (2)
• X and gamma time profiles of WFC+GRBM events (3)
•  $\nu$F$\nu$ spectrum of GRB960720
•  $\nu$F$\nu$ spectrum of GRB970111
•  $\nu$F$\nu$ spectrum of GRB970228
• Spectral evolution of SGR1900+14
• GRBM spectra of SGR1900+14