INTEGRAL Spectrometer SPI's GRB detection capabilities

• DOI: 10.1051/0004-6361:20031231
• Publication Date: 2003-10-28T10:26:22Z
• Authors: A. von Kienlin; V. Beckmann; A. Rau; N. Arend; K. Bennett; B. McBreen; P. Connell; S. Deluit; L. Hanlon; K. Hurley; M. Kippen; G. G. Lichti; L. Moran; R. Preece; J.-P. Roques; V. Schönfelder; G. Skinner; A. Strong; R. Williams
• Keywords: Field of view

The spectrometer SPI, one of the two main instruments INTEGRAL spacecraft, offers significant gamma-ray burst detection capabilities. In its 35° (full width) field view SPI is able to localise bursts at a mean rate ~0.8/month. With large anticoincidence shield 512 kg BGO crystals detect quasi omni-directionally with very high sensitivity. Burst alerts are distributed by Alert System. first 8 months mission about 0.8/day candidates and 0.3/day positions were obtained interplanetary network triangulations other spacecrafts.