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Proceedings Paper

Calibration of the spectrometer aboard the INTEGRAL satellite
Author(s): Stephane Schanne; Bertrand Cordier; Maurice Gros; David Attie; Peter von Ballmoos; Laurent Bouchet; Raffaelo Carli; Paul Connell; Roland Diehl; Pierre Jean; Juergen Kiener; Andreas von Kienlin; Juergen Knoedlseder; Phillipe Laurent; Giselher G. Lichti; Pierre Mandrou; Jaques Paul; Philippe Paul; Jean-Pierre Roques; Filomeno Sanchez; Volker Schoenfelder; Chris Shrader; Gerald K. Skinner; Andrew W. Strong; Steven John Sturner; Vincent Tatischeff; Bonnard J. Teegarden; Gilbert Vedrenne; Georg Weidenspointner; Cornelia B. Wunderer
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Paper Abstract

SPI, the Spectrometer on board the ESA INTEGRAL satellite, to be launched in October 2002, will study the gamma-ray sky in the 20 keV to 8 MeV energy band with a spectral resolution of 2 keV for photons of 1 MeV, thanks to its 19 germanium detectors spanning an active area of 500 cm2. A coded mask imaging technique provides a 2° angular resolution. The 16° field of view is defined by an active BGO veto shield, furthermore used for background rejection. In April 2001 the flight model of SPI underwent a one-month calibration campaign at CEA in Bruyères le Châtel using low intensity radioactive sources and the CEA accelerator for homogeneity measurements and high intensity radioactive sources for imaging performance measurements. After integration of all scientific payloads (the spectrometer SPI, the imager IBIS and the monitors JEM-X and OMC) on the INTEGRAL satellite, a cross-calibration campaign has been performed at the ESA center in Noordwijk. A set of sources has been placed in the field of view of the different instruments in order to compare their performances and determine their mutual influence. We report on the scientific goals of this calibration activity, and present the measurements performed as well as some preliminary results.

Paper Details

Date Published: 11 March 2003
PDF: 12 pages
Proc. SPIE 4851, X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy, (11 March 2003); doi: 10.1117/12.461604
Show Author Affiliations
Stephane Schanne, CEA Saclay (France)
Bertrand Cordier, CEA Saclay (France)
Maurice Gros, CEA Saclay (France)
David Attie, CEA Saclay (France)
Peter von Ballmoos, Ctr. d'Etude Spatiale des Rayonnements (France)
Laurent Bouchet, Ctr. d'Etude Spatiale des Rayonnements (France)
Raffaelo Carli, European Space Agency/ESTEC (Netherlands)
Paul Connell, Univ. of Birmingham (United Kingdom)
Roland Diehl, Max-Planck-Institut fuer extraterrestrische Physik (Germany)
Pierre Jean, Ctr. d'Etude Spatiale des Rayonnement (France)
Juergen Kiener, Ctr. de Spectrometrie Nucleaire et de Spectrometrie de Masse (France)
Andreas von Kienlin, Max-Planck-Institut fuer extraterrestriche Physik (Germany)
Juergen Knoedlseder, Ctr. d'Etude Spatiale des Rayonnements (France)
Phillipe Laurent, CEA Saclay (France)
Giselher G. Lichti, Max-Planck-Institut fuer extraterrestrische Physik (Germany)
Pierre Mandrou, Ctr. d'Etude Spatiale des Rayonnements (France)
Jaques Paul, CEA Saclay (France)
Philippe Paul, Ctr. d'Etude Spatiale des Rayonnements (France)
Jean-Pierre Roques, Ctr. d'Etude Spatiale des Rayonnements (France)
Filomeno Sanchez, Univ. de Valencia (Spain)
Volker Schoenfelder, Max-Planck-Institut fuer extraterrestrische Physik (Germany)
Chris Shrader, Universities Space Research Association (United States)
NASA Goddard Space Flight Ctr. (United States)
Gerald K. Skinner, Ctr. d'Etude Spatiale des Rayonnements (France)
Andrew W. Strong, Max-Planck-Institut fuer extraterrestriche Physik (Germany)
Steven John Sturner, Universities Space Research Association (United States)
NASA Goddard Space Flight Ctr. (United States)
Vincent Tatischeff, Ctr. de Spectrometrie Nucleaire et de Spectrometrie de Masse (France)
Bonnard J. Teegarden, NASA Goddard Space Flight Ctr. (United States)
Gilbert Vedrenne, Ctr. d'Etude Spatiale des Rayonnements (France)
Georg Weidenspointner, Universities Space Research Association (United States)
NASA Goddard Space Flight Ctr. (United States)
Cornelia B. Wunderer, Max-Planck-Institut fuer extraterrestrische Physik (Germany)


Published in SPIE Proceedings Vol. 4851:
X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy
Joachim E. Truemper; Harvey D. Tananbaum, Editor(s)

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