Calibration of AGILE-GRID with on-ground data and Monte Carlo simulations
Abstract
AGILE is a mission of the Italian Space Agency (ASI) Scientific Program dedicated to gamma-ray astrophysics, operating in a low Earth orbit since April 23, 2007. It is designed to be a very light and compact instrument, capable of simultaneously detecting and imaging photons in the 18 keV to 60 keV X-ray energy band and in the 30 MeV{50 GeV gamma-ray energy with a good angular resolution (< 1 deg at 1 GeV). The core of the instrument is the Silicon Tracker complemented with a CsI calorimeter and a AntiCoincidence system forming the Gamma Ray Imaging Detector (GRID). Before launch, the GRID needed on-ground calibration with a tagged gamma-ray beam to estimate its performance and validate the Monte Carlo simulation. The GRID was calibrated using a tagged gamma-ray beam with energy up to 500 MeV at the Beam Test Facilities at the INFN Laboratori Nazionali di Frascati. These data are used to validate a GEANT3 based simulation by comparing the data and the Monte Carlo simulation by measuring the angular and energy resolutions. The GRID angular and energy resolutions obtained using the beam agree well with the Monte Carlo simulation. Therefore the simulation can be used to simulate the same performance on-light with high reliability.
Keywords
Cite
@article{arxiv.1805.10804,
title = {Calibration of AGILE-GRID with on-ground data and Monte Carlo simulations},
author = {P. W. Cattaneo and A. Rappoldi and A. Argan and G. Barbiellini and F. Boffelli and A. Bulgarelli and B. Buonomo and M. Cardillo and A. W. Chen and V. Cocco and S. Colafrancesco and F. D'Ammando and I. Donnarumma and A. Ferrari and V. Fioretti and L. Foggetta and T. Froysland and F. Fuschino and M. Galli and F. Gianotti and A. Giuliani and F. Longo and F. Lucarelli and M. Marisaldi and G. Mazzitelli and A. Morselli and F. Paoletti and N. Parmigiani and A. Pellizzoni and G. Piano and M. Pilia and C. Pittori and M. Prest and G. Pucella and L. Quintieri and S. Sabatini and M. Tavani and M. Trifoglio and A. Trois and P. Valente and E. Vallazza and S. Vercellone and F. Verrecchia and A. Zambra},
journal= {arXiv preprint arXiv:1805.10804},
year = {2018}
}
Comments
19 page 12 figures