INTEGRAL/SPI ground calibration

Three calibration campaigns of the spectrometer SPI have been performed before launch in order to determine the instrument characteristics, such as the effective detection area, the spectral resolution and the angular resolution. Absolute determination of the effective area has been obtained from si...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Astronomy and astrophysics (Berlin) 2003-11, Vol.411 (1), p.L71-L79
Hauptverfasser: Attié, D., Cordier, B., Gros, M., Laurent, Ph, Schanne, S., Tauzin, G., von Ballmoos, P., Bouchet, L., Jean, P., Knödlseder, J., Mandrou, P., Paul, Ph, Roques, J.-P., Skinner, G., Vedrenne, G., Georgii, R., von Kienlin, A., Lichti, G., Schönfelder, V., Strong, A., Wunderer, C., Shrader, C., Sturner, S., Teegarden, B., Weidenspointner, G., Kiener, J., Porquet, M.-G., Tatischeff, V., Crespin, S., Joly, S., André, Y., Sanchez, F., Leleux, P.
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Three calibration campaigns of the spectrometer SPI have been performed before launch in order to determine the instrument characteristics, such as the effective detection area, the spectral resolution and the angular resolution. Absolute determination of the effective area has been obtained from simulations and measurements. At 1 MeV, the effective area is 65 cm2 for a point source on the optical axis, the spectral resolution ~2.3 keV. The angular resolution is better than 2.5° and the source separation capability about 1°. Some temperature dependant parameters will require permanent in-flight calibration.
ISSN:0004-6361
1432-0746
1432-0756
DOI:10.1051/0004-6361:20031302