On-ground calibration of AGILE-GRID with a photon beam: Results and lessons for the future

P.W. Cattaneo, A. Rappoldi, A. Argan, B. Buonomo, A. Bulgarelli, A.W. Chen, F. D'Ammando, L. Foggetta, F. Fuschino, M. Galli, F. Gianotti, A. Giuliani, F. Longo, M. Marisaldi, G. Mazzitelli, A. Pellizzoni, M. Prest, G. Pucellaf, L. Quintieri, M. TavaniM. Trifoglio, A. Trois, P. Valente, E. Vallazza, S. Vercellone, G. Barbiellini, P. Caraveo, E. Costa, G. De Paris, E. Del Monte, G. Di Cocco, I. Donnarumma, Y. Evangelista, A. Ferraril, M. Feroci, M. Fiorini, M. Giusti, C. Labanti, I. Lapshov, F. Lazzarotto, P. Liparin, F. Lucarelli, S. Mereghetti, E. Morelli, E. Morettii, A. Morselli, L. Pacciani, F. Perotti, G. Piano, P. Picozza, M. Pilia, M. Rapisarda, A. Rubini, S. Sabatini, P. Soffitta, E. Striani, V. Vittorini, D. Zanello, S. Colafrancesco, P. Giommi, C. Pittori, P. Santolamazza, F. Verrecchia, L. Salotti

Research output: Contribution to conferencePaper

Abstract

At the core of the AGILE scientific instrument, designed to operate on a satellite, there is the Gamma Ray Imaging Detector (GRID) consisting of a Silicon Tracker (ST), a Cesium Iodide Mini-Calorimeter and an Anti- Coincidence system of plastic scintillator bars. The ST needs an on-ground calibration with a γ-ray beam to validate the simulation used to calculate the energy response function and the effective area versus the energy and the direction of the ? rays. A tagged γ-ray beam line was designed at the Beam Test Facility (BTF) of the INFN Laboratori Nazionali of Frascati (LNF), based on an electron beam generating γ rays through bremsstrahlung in a position-sensitive target. The γ-ray energy is deduced by the difference with the post-bremsstrahlung electron energy1-.2 The electron energy is measured by a spectrometer consisting of a dipole magnet and an array of position sensitive silicon strip detectors, the Photon Tagging System (PTS). The use of the combined BTF-PTS system as tagged photon beam requires understanding the efficiency of γ-ray tagging, the probability of fake tagging, the energy resolution and the relation of the PTS hit position versus the γ-ray energy. This paper describes this study comparing data taken during the AGILE calibration occurred in 2005 with simulation. © 2012 SPIE.
Original languageEnglish
DOIs
Publication statusPublished - 2012
Externally publishedYes
EventSpace Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray - , Netherlands
Duration: 1 Jan 2012 → …

Conference

ConferenceSpace Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray
CountryNetherlands
Period1/1/12 → …

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Cattaneo, P. W., Rappoldi, A., Argan, A., Buonomo, B., Bulgarelli, A., Chen, A. W., ... Salotti, L. (2012). On-ground calibration of AGILE-GRID with a photon beam: Results and lessons for the future. Paper presented at Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray, Netherlands. https://doi.org/10.1117/12.926445