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Title: Calibration of the GLAST Burst Monitor detectors

Journal Article · · AIP Conference Proceedings
DOI:https://doi.org/10.1063/1.2757460· OSTI ID:21067321
; ; ; ; ;  [1]; ;  [2]; ; ; ;  [3]; ; ; ; ;  [4];  [5]
  1. Max-Planck-Institut fuer extraterrestrische Physik, Giessenbachstrasse, 85748 Garching (Germany)
  2. Physikalisch-Technische Bundesanstalt, Abbestrasse 2-12, D-10587 Berlin (Germany)
  3. Marshall Space Flight Center, VP62, Huntsville, AL 35812 (United States)
  4. University of Alabama, NSSTC, 320 Sparkman Drive, Huntsville, AL 35805 (United States)
  5. Los Alamos National Laboratory, ISR-1, MS B244, Los Alamos, NM 87545 (United States)

The GLAST Burst Monitor (GBM) will augment the capabilities of GLAST for the detection of cosmic gamma-ray bursts by extending the energy range (20 MeV to > 300 GeV) of the Large Area Telescope (LAT) towards lower energies by 2 BGO-detectors (150 keV to 30 MeV) and 12 NaI(Tl) detectors (10 keV to 1 MeV). The physical detector response of the GBM instrument for GRBs is determined with the help of Monte Carlo simulations, which are supported and verified by on-ground calibration measurements, performed extensively with the individual detectors at the MPE in 2005. All flight and spare detectors were irradiated with calibrated radioactive sources in the laboratory (from 14 keV to 4.43 MeV). The energy/channel-relations, the dependences of energy resolution and effective areas on the energy and the angular responses were measured. Due to the low number of emission lines of radioactive sources below 100 keV, calibration measurements in the energy range from 10 keV to 60 keV were performed with the X-ray radiometry working group of the Physikalisch-Technische Bundesanstalt (PTB) at the BESSY synchrotron radiation facility, Berlin.

OSTI ID:
21067321
Journal Information:
AIP Conference Proceedings, Vol. 921, Issue 1; Conference: 1. GLAST symposium, Stanford, CA (United States), 5-8 Feb 2007; Other Information: DOI: 10.1063/1.2757460; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
Country of Publication:
United States
Language:
English