THE CALIBRATION AND SIMULATION OF THE GRB TRIGGER DETECTOR OF THE ULTRA FAST FLASH OBSERVATORY

Gamma-ray Bursts: 15 Years of GRB Afterglows Pub Date : 2013-11-11 DOI:10.1051/EAS/1361086

M. Huang, S. Ahmad, P. Barrillon, S. Brandt, C. Budtz-Jørgensen, A. Castro-Tirado, S.-H. Chang, Y. Chang, C. R. Chen, Pisin Chen, H. S. Choi, Yong-Jin Choi, P. Connell, S. Dagoret-Campagne, C. Eyles, B. Grossan, J. J. Huang, S. Jeong, A. Jung, J. Kim, Min Bin Kim, Sug-Whan Kim, Y. W. Kim, A. S. Krasnov, J. Lee, H. Lim, C.Y. Lin, E. Linder, T. Liu, N. Lund, K. Min, G. Na, J. Nam, M. Panasyuk, I. Park, V. Reglero, J. Řípa, J. Rodrigo, G. Smoot, J. Suh, S. Svertilov, N. Vedenkin, Minzu Wang, I. Yashin

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Abstract

The UFFO (Ultra-Fast Flash Observatory) is a GRB detector on board the Lomonosov satellite, to be launched in 2013. The GRB trigger is provided by an X-ray detector, called UBAT (UFFO Burst Alarm & Trigger Telescope), which detects X-rays from the GRB and then triggers to determine the direction of the GRB and then alerts the Slewing Mirror Telescope (SMT) to turn in the direction of the GRB and record the optical photon fluxes. This report details the calibration of the two components: the MAPMTs and the YSO crystals and simulations of the UBAT. The results shows that this design can observe a GRB within a field of view of ±35° and can trigger in a time scale as short as 0.2 – 1.0 s after the appearance of a GRB X-ray spike.

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超快闪光天文台GRB触发探测器的标定与仿真

UFFO(超快闪光天文台)是在2013年发射的罗蒙诺索夫卫星上的GRB探测器。GRB触发器是由一个名为UBAT (UFFO突发报警触发望远镜)的x射线探测器提供的，该探测器探测到GRB发出的x射线，然后触发以确定GRB的方向，然后警报回转镜望远镜(SMT)转向GRB的方向并记录光光子通量。本报告详细介绍了两个组成部分的校准:MAPMTs和YSO晶体以及UBAT的模拟。结果表明，该设计能够在±35°视场范围内观测GRB，并能在短至0.2 ~ 1.0 s的时间尺度内触发GRB x射线峰。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Gamma-ray Bursts: 15 Years of GRB Afterglows

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