Testing and Performance of UFFO Burst Alert & Trigger Telescope

J. Ripa; M. B. Kim; J. Lee; I. H. Park; J. E. Kim; H. Lim; S. Jeong; A. J. Castro-Tirado; P. H. Connell; C. Eyles; V. Reglero; J. M. Rodrigo; V. Bogomolov; M. I. Panasyuk; V. Petrov; S. Svertilov; I. Yashin; S. Brandt; C. Budtz-Jorgensen; Y. -Y. Chang; P. Chen; M. A. Huang; T. -C. Liu; J. W. Nam; M. -Z. Wang; C. R. Chen; H. S. Choi; S. -W. Kim; K. W. Min

arXiv · 1507.05696

Testing and Performance of UFFO Burst Alert & Trigger Telescope

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Abstract

The Ultra-Fast Flash Observatory pathfinder (UFFO-p) is a new space mission dedicated to detect Gamma-Ray Bursts (GRBs) and rapidly follow their afterglows in order to provide early optical/ultraviolet measurements. A GRB location is determined in a few seconds by the UFFO Burst Alert & Trigger telescope (UBAT) employing the coded mask imaging technique and the detector combination of Yttrium Oxyorthosilicate (YSO) scintillating crystals and multi-anode photomultiplier tubes. The results of the laboratory tests of UBAT's functionality and performance are described in this article. The detector setting, the pixel-to-pixel response to X-rays of different energies, the imaging capability for <50 keV X-rays, the localization accuracy measurements, and the combined test with the Block for X-ray and Gamma-Radiation Detection (BDRG) scintillator detector to check the efficiency of UBAT are all described. The UBAT instrument has been assembled and integrated with other equipment on UFFO-p and should be launched on board the Lomonosov satellite in late-2015.

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J. Ripa, M. B. Kim, J. Lee, I. H. Park, J. E. Kim, H. Lim, S. Jeong, A. J. Castro-Tirado, P. H. Connell, C. Eyles, V. Reglero, J. M. Rodrigo, V. Bogomolov, M. I. Panasyuk, V. Petrov, S. Svertilov, I. Yashin, S. Brandt, C. Budtz-Jorgensen, Y. -Y. Chang, P. Chen, M. A. Huang, T. -C. Liu, J. W. Nam, M. -Z. Wang, C. R. Chen, H. S. Choi, S. -W. Kim, K. W. Min. 2015-07-21. Testing and Performance of UFFO Burst Alert & Trigger Telescope. https://arxiv.org/abs/1507.05696

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