Speaker
Dr
Paolo Walter Cattaneo
(INFN PV)
Description
AGILE, an Italian Space Agency mission launched in April 2007, has at is core
a pair-production Gamma Ray Imager (GRID) sensitive from 30 MeV-50GeV.
The instrument was calibrated before launch in the Beam Test Facility at the
INFN Laboratori Nazionali di Frascati using a tagged photon beam designed
for the purpose.
The data were used to measure the effective area, energy dispersion,
and point spread function versus the photon direction and energy under
beam test condition and to validate the Monte Carlo simulation to be used for
estimating the same quantities in flight condition.
This calibration required first a careful characterization of the photon
tagging system in terms of efficiency and energy resolution, followed by
an analysis of the AGILE data.
During this analysis we identified some problems in the calibration setup
that limited the precision of our calibration.
We discuss these limitations and suggest an improved setup for
calibration of future gamma ray telescope on satellite.
Primary author
Dr
Paolo Walter Cattaneo
(INFN PV)
Co-author
Dr
Andrea Rappoldi
(INFN PV)
