Instrumental lines of astrophysical relevance in TGRS and SPI

Details Instrumental lines of astrophysical relevance in TGRS and SPI Instrumental lines of astrophysical relevance in TGRS and SPI

Jul 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002newar..46..625w&link_type=abstract

New Astronomy Reviews, Volume 46, Issue 8-10, p. 625-629.

Astronomy and Astrophysics

Astronomy

2

Scientific paper

High resolution γ-ray spectroscopy at energies around 1 MeV, as with SPI on board INTEGRAL, is a powerful tool for astronomy with radioactivities. We do not expect the SPI signal-to-background ratio for any of the anticipated γ-ray sources to exceed a few percent; hence detailed modelling of the instrumental background will be crucial. We exploit the similarities between TGRS on board WIND and SPI with respect to orbit and radiation environment, as well as detector design and material composition, to anticipate the most important instrumental background lines and their production channels in SPI at the energies of selected γ-ray lines of astrophysical relevance.

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