2003/08/20 by A. von Kienlin, V. Beckmann, A. Rau +23 · 2 citations
Engineering · Physics and Astronomy · #Aerospace engineering #Astro and Planetary Science #Astronomy #Astrophysics #Engineering #Field of view #Gamma-ray burst #Gamma-ray bursts and supernovae #Geology #Interplanetary spaceflight #Nuclear physics #Optics #Physics #Plasma #Pulsars and Gravitational Waves Research #Shield #Spacecraft #Spectrometer #astro-ph
paper · pdf · doi:10.1051/0004-6361:20031231
published as Astron.Astrophys.411:L299-L306,2003 · 8 pages, 4 figures. Accepted for publication in A&AL (INTEGRAL issue)
arxiv created 2003/08/20 · openalex publication_date 2003/10/28 · arxiv updated 2009/12/01 · openalex created_date 2022/08/18 · openalex updated_date 2026/07/31
The spectrometer SPI, one of the two main instruments of the INTEGRAL spacecraft, offers significant gamma-ray burst detection capabilities. In its 35° (full width) field of view SPI is able to localise gamma-ray bursts at a mean rate of ~0.8/month. With its large anticoincidence shield of 512 kg of BGO crystals SPI is able to detect gamma-ray bursts quasi omni-directionally with a very high sensitivity. Burst alerts of the anticoincidence shield are distributed by the INTEGRAL Burst Alert System. In the first 8 months of the mission about 0.8/day gamma-ray burst candidates and 0.3/day gamma-ray burst positions were obtained with the anticoincidence shield by interplanetary network triangulations with other spacecrafts.