A GRB Detection System using the BGO-Shield of the INTEGRAL-Spectrometer SPI

Details A GRB Detection System using the BGO-Shield of the INTEGRAL-Spectrometer SPI A GRB Detection System using the BGO-Shield of the INTEGRAL-Spectrometer SPI

2001-09-07

arxiv.org/abs/astro-ph/0109119v1

Astronomy and Astrophysics

Astrophysics

4 pages including 2 figures; to appear in the proceedings of the 2nd Rome Workshop on Gamma-Ray Burst in the Afterglow Era, Ro

Scientific paper

10.1007/10853853_118

The anticoincidence shield (ACS) of the INTEGRAL-spectrometer SPI consists of 512 kg of BGO crystals. This massive scintillator allows the measurement of gamma-ray bursts (GRBs) with a very high sensitivity. Estimations have shown that with the ACS some hundred gamma-ray bursts per year on the 5 sigma level can be detected, having an equivalent sensitivity to BATSE. The GRB detection will be part of the real-time INTEGRAL burst-alert system (IBAS). The ACS branch of IBAS will produce burst alerts and light curves with 50 ms resolution. It is planned to use ACS burst alerts in the 4th interplanetary network (IPN).

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