Testing and modelling of the SVOM MXT narrow field lobster-eye telescope
Testing and modelling of the SVOM MXT narrow field lobster-eye telescope
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SVOM MXT 窄视场龙虾眼望远镜的测试和建模
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发表时间：
2017
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通讯作者：
D. Gotz
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作者：
C. Feldman;J. Pearson;R. Willingale;J. Sykes;P. Drumm;P. Houghton;C. Bicknell;J. Osborne;A. Martindale;P. O’Brien;R. Fairbend;E. Schyns;S. Petit;Romain Roudot;K. Mercier;J. Le Duigou;D. Gotz
天基多波段天文可变物监测器(SVOM)是一项将于2021年发射的法中太空任务，目的是研究伽马射线爆发，这是宇宙中最强大的恒星爆炸。微通道X射线望远镜是一种X射线聚焦望远镜，其探测器限制视场为∼1平方°，工作在0.2keV-10keV能区。MXT是一种窄视场优化的龙虾眼望远镜，旨在迅速探测和准确定位伽马射线爆发的余辉。面包板MXT光学元件由方孔微孔光学元件(∼)阵列组成，其球面半径为2米，焦距为1米，本征视场为MPO 6°。我们详细介绍了基线设计和正在进行的面包板和结构热模型MPO的X射线测试结果，这些测试是在莱斯特大学和潘特进行的。此外，我们还给出了详细的建模和分析，揭示了限制角分辨率的因素、点扩展函数的特性以及现有MPOS的效率和收集面积。
The Space-based multi-band astronomical Variable Objects Monitor (SVOM) is a French-Chinese space mission to be launched in 2021 with the goal of studying gamma-ray bursts, the most powerful stellar explosions in the Universe. The Microchannel X-ray Telescope (MXT) on-board SVOM, is an X-ray focusing telescope with a detector-limited field of view of ∼1 square° , working in the 0.2-10 keV energy band. The MXT is a narrow-field-optimised lobster eye telescope, designed to promptly detect and accurately locate gamma-ray bursts afterglows. The breadboard MXT optic comprises of an array of square pore micro pore optics (MPOs) which are slumped to a spherical radius of 2 m giving a focal length of 1 m and an intrinsic field of view of ∼6° . We present details of the baseline design and results from the ongoing X-ray tests of the breadboard and structural thermal model MPOs performed at the University of Leicester and at Panter. In addition, we present details of modelling and analysis which reveals the factors that limit the angular resolution, characteristics of the point spread function and the efficiency and collecting area of the currently available MPOs.