INTEGRAL/SPI ground calibration
Astrophysics
2009-11-10 v1
Abstract
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 cm^2 for a point source on the optical axis, the spectral resolution ~2.3 keV. The angular resolution is better than 2.5 deg and the source separation capability about 1 deg. Some temperature dependant parameters will require permanent in-flight calibration.
Cite
@article{arxiv.astro-ph/0308504,
title = {INTEGRAL/SPI ground calibration},
author = {D. Attié and B. Cordier and M. Gros and Ph. Laurent and S. Schanne and G. Tauzin and P. von Ballmoos and L. Bouchet and P. Jean and J. Knödlseder and P. Mandrou and Ph. Paul and J. -P. Roques and G. Skinner and G. Vedrenne and R. Georgii and A. von Kienlin and G. Lichti and V. Schönfelder and A. Strong and C. Wunderer and C. Shrader and S. Sturner and B. Teegarden and G. Weidenspointner and J. Kiener and M. -G. Porquet and V. Tatischeff and S. Crespin and S. Joly and Y. André and F. Sanchez and P. Leleux},
journal= {arXiv preprint arXiv:astro-ph/0308504},
year = {2009}
}
Comments
9 pages, 12 figures, 2 tables. Accepted for publication in A&AL (INTEGRAL Special issue)