The INTEGRAL spectrometer SPI

Authors
Vedrenne, G Schonfelder, V Albernhe, F Borrel, V Bouchet, L Caraveo, P Connell, P Cordier, B Denis, N Coszach, R Diallo, N Diehl, R Durouchoux, PH Georgii, R Jean, P Juchniewicz, J Kandel, B von Kienlin, A Lavigne, JM Leleux, P Lichti, G Lin, R Mandrou, P Matteson, J Naya, J Paul, P Roques, JP Sanchez, F Seifert, H Skinner, G Slassi, S Strong, A Teegarden, B Varendorff, M von Ballmoos, P
Citation
G. Vedrenne et al., The INTEGRAL spectrometer SPI, ASTROPHYS L, 39(1-6), 1999, pp. 793-797
Citations number
2
Categorie Soggetti
Space Sciences
Journal title
ASTROPHYSICAL LETTERS & COMMUNICATIONS
ISSN journal
08886512 → ACNP
Volume
39
Issue
1-6
Year of publication
1999
Pages
793 - 797
Database
ISI
SICI code
0888-6512(1999)39:1-6<793:TISS>2.0.ZU;2-X
Abstract
The INTEGRAL spectrometer SPI features a compact array of high purity Germa nium detectors cooled by a Stirling cooler system and shielded by a EGO ant icoincidence system. A coded mask modulates the astrophysical signal. In th e energy range between 20 keV - 8 MeV SPI will perform spectral analysis of high-energy sources such as supernovae remnants, novae, compact Galactic s ources, annihilation sites, Active Galactic Nuclei etc. The anticipated per formance for narrow line spectroscopy is characterized by an energy resolut ion in the parts per thousand range, an angular resolution of order 2.5 deg rees within a fully coded field of view of 16 degrees, and a sensitivity 3- 7 10(-6) ph cm(-2) s(-1) in the energy range relevant for nuclear astrophys ics.