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Proceedings Paper

Calibrating and optimizing the imaging of the SuperAGILE experiment
Author(s): Y. Evangelista; E. Costa; E. Del Monte; G. Di Persio; I. Donnarumma; M. Feroci; M. Frutti; I. Lapshov; F. Lazzarotto; M. Mastropietro; E. Morelli; L. Pacciani; M. Rapisarda; A. Rubini; P. Soffitta; A. Argan; A. Trois; A. Lo Bue; P. Rossi; L. Semeraro; M. Tavani
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Paper Abstract

SuperAGILE (SA) is the hard X-ray monitor of the AGILE small satellite mission, launched on 23rd April 2007. The monitor is based on four one-dimensional coded-mask detectors. In spite of the compactness (45×45×15 cm3) and lightness (5 kg), the experiment has high angular resolution (6 arcmin) and point source location accuracy (<2 arcmin, for bright sources) for every position in the Field Of View (FOV). To achieve these imaging performances, considerable efforts were made for the alignment procedures during the assembly of the experiment itself, and with the rest of the satellite. Mechanical alignment were measured during all the assembly phases and before the launch campaign. Moreover, a specific campaign was performed in the laboratory with radioactive calibration sources to calibrate the imaging response on ground. A on-orbit calibration campaign was performed using the Crab Nebula. Due to the huge satellite wobbling (1 deg) and continuous slewing (1 deg/day), a refined attitude correction strategy has been implemented on photon-by-photon data to maintain the high imaging performances. In this paper we summarize all the activities we performed for calibrating and optimizing the imaging capabilities, from the assembly of the experiment to the on-orbit calibrations and we show the results achieved.

Paper Details

Date Published: 15 July 2008
PDF: 12 pages
Proc. SPIE 7011, Space Telescopes and Instrumentation 2008: Ultraviolet to Gamma Ray, 70113B (15 July 2008); doi: 10.1117/12.789421
Show Author Affiliations
Y. Evangelista, IASF-INAF Roma (Italy)
Univ. degli studi di roma La Sapienza (Italy)
E. Costa, IASF-INAF Roma (Italy)
E. Del Monte, IASF-INAF Roma (Italy)
G. Di Persio, IASF-INAF Roma (Italy)
I. Donnarumma, IASF-INAF Roma (Italy)
M. Feroci, IASF-INAF Roma (Italy)
M. Frutti, IASF-INAF Roma (Italy)
I. Lapshov, IASF-INAF Roma (Italy)
CNR, Istituto Metodologie Inorganiche e dei Plasmi (Italy)
F. Lazzarotto, IASF-INAF Roma (Italy)
M. Mastropietro, IASF-INAF Roma (Italy)
CNR, Istituto Metodologie Inorganiche e dei Plasmi (Italy)
E. Morelli, Istituto di Astrofisica Spaziale e Fisica Cosmica (Italy)
L. Pacciani, IASF-INAF Roma (Italy)
M. Rapisarda, ENEA UTS Fusione Technologie (Italy)
A. Rubini, IASF-INAF Roma (Italy)
P. Soffitta, IASF-INAF Roma (Italy)
A. Argan, IASF-INAF Roma (Italy)
A. Trois, IASF-INAF Roma (Italy)
A. Lo Bue, ENEA UTS Fusione Technologie (Italy)
P. Rossi, ENEA UTS Fusione Technologie (Italy)
L. Semeraro, ENEA UTS Fusione Technologie (Italy)
M. Tavani, IASF-INAF Roma (Italy)

Published in SPIE Proceedings Vol. 7011:
Space Telescopes and Instrumentation 2008: Ultraviolet to Gamma Ray
Martin J. L. Turner; Kathryn A. Flanagan, Editor(s)

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