Kim, J.E.12; Ahmad, S.4; Barrillon, P.4; Brandt, Søren1; Budtz-Jørgensen, Carl1; Castro-Tirado, A.J.5; Chen, P.13; Choi, Y.J.7; Connell, P.8; Dagoret-Campagne, S.4; Eyles, C.8; Grossan, B.9; Huang, M. –H. A.10; Jung, A.12; Jeong, S.12; Kim, M. B.12; Kim, S. -W.11; Kim, Y. W.12; Lund, Niels1
1 National Space Institute, Technical University of Denmark2 Astrophysics, National Space Institute, Technical University of Denmark3 Ewha Womans University4 University of Paris-Sud - University of Paris XI5 Instituto de Astrofísica de Andalucía6 National Taiwan University7 Korea Advanced Institute of Science & Technology8 University of Valencia9 University of California10 National United University11 Yonsei University12 Ewha Womans University13 National Taiwan University
The Ultra Fast Flash Observatory pathfinder (UFFO-p) is a telescope system designed for the detection of the prompt optical/UV photons from Gamma-Ray Bursts (GRBs), and it will be launched onboard the Lomonosov spacecraft in 2012. The UFFO-p consists of two instruments: the UFFO Burst Alert and Trigger telescope (UBAT) for the detection and location of GRBs, and the Slewing Mirror Telescope (SMT) for measurement of the UV/optical afterglow. The UBAT isa coded-mask aperture X-ray camera with a wide field of view (FOV) of 1.8 sr. The detector module consists of the YSO(Yttrium Oxyorthosilicate) scintillator crystal array, a grid of 36 multi-anode photomultipliers (MAPMTs), and analog and digital readout electronics. When the γ /X-ray photons hit the YSO scintillator crystal array, it produces UV photons by scintillation in proportion to the energy of the incident γ /X-ray photons. The UBAT detects X-ray source of GRB inthe 5 ~ 100 keV energy range, localizes the GRB within 10 arcmin, and sends the SMT this information as well as drift correction in real time. All the process is controlled by a Field Programmable Gates Arrays (FPGA) to reduce the processing time. We are in the final stages of the development and expect to deliver the instrument for the integration with the spacecraft. In what follows we present the design, fabrication and performance test of the UBAT.
Proceedings of S P I E - International Society for Optical Engineering, 2012, Vol 8443, Issue PART 2
Main Research Area:
Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray