INTEGRAL: In flight behavior of ISGRI and SPI

Details INTEGRAL: In flight behavior of ISGRI and SPI INTEGRAL: In flight behavior of ISGRI and SPI

Apr 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005nimpa.541..323l&link_type=abstract

Nuclear Instruments and Methods in Physics Research Section A, Volume 541, Issue 1-2, p. 323-331.

Physics

4

X- And Gamma-Ray Telescopes And Instrumentation, Elemental Semiconductors, Ii-Vi Semiconductors, Environmental Effects On Instruments

Scientific paper

The payload of INTEGRAL, the space gamma-ray observatory launched in October 2002, features two gamma-ray telescopes that take advantage of the semiconductor technologies. The spectrometer SPI, is equipped with 19 high-purity germanium detectors cooled at 85 K. We will report on the SPI in-flight background, performance, the detector evolution and the annealings performed every 6 months. The INTEGRAL Soft Gamma-Ray Imager (ISGRI) is the low-energy camera of the IBIS telescope. It is the first large camera equipped with CdTe detectors. We will present some system aspects, in particular the noisy pixel handling and will report on its in-flight background, performance and their evolution.

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