Calibration of INTEGRALs Spectrometer SPI
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Calibration of INTEGRAL's Spectrometer SPI

January 5, 2013
Date: 19 Apr 2001 Satellite: INTEGRAL Depicts: Composite image of the calibration result, and the installation of SPI in the calibration clean room Copyright: CESR, Toulouse; CEA/Saclay Upper image The first ever high-resolution gamma-ray image above 1 MeV produced with the coded mask technique during the calibration of INTEGRAL's spectrometer SPI. This image was obtained during the INTEGRAL SPI calibration campaign in April 2001. The calibration was carried out on the night of 18-19 April using a sodium-24 source. This image of a simulated star-like source produced with the coded mask technique is the first of its kind with such a high angular resolution (less than 2°) and was obtained at 2.75 MeV. Image credit: CESR, Toulouse Lower image SPI being installed in its calibration clean-room at Bruyères-le-Châtel. Image credit: CEA/Saclay

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