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Opto-mechanical performances of slewing mirror space telescope for GRB detection

机译:旋转镜空间望远镜的GRB检测的光机械性能

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摘要

The UFFO (Ultra-Fast Flash Observatory) Pathfinder is a space instrument onboard the Lomonosov satellite scheduled to be launched in November 2011. It is designed for extremely fast observation of optical counterparts of Gamma Ray Bursts (GRBs). It consists of two subsystems; i) UBAT (UFFO Burst Alert & Trigger Telescope) and ii) SMT (Slewing Mirror Telescope). This study is concerned with SMT opto-mechanical subsystem design and optical performance test. SMT is a F/11.4 Ritchey-Chretien type telescope benefited from compact design with a short optical tube assembly for the given focal length of 1,140 mm. SMT is designed to operate over a wide range of wavelength between 200 nm and 650 nm and has 17 arcmin FOV (Field of View), providing 4 arcsec in detector pixel resolution. The main detector is 256 × 256 ICCD (Intensified Charge-Coupled Device) of 22.2μm in pixel size. This SMT design offers good imaging performance including 0.77 in MTF at Nyquist frequency of 22.52 /mm and 2.7 μm in RMS spot radius. The primary (Ml) and secondary (M2) mirror are hyperbolic surfaces and were manufactured within 1/50 waves (He-Ne, 632.8nm) in RMS surface error. After completion of the initial integration, the SMT opto-mechanical subsystem reached to the system wavefront error better than 1/10 waves in room temperature. We then tested the opto-mechanical performances under thermal cycling and vibration. In this study, we report the SMT subsystem design solution and integration together with thermal and vibration test results.
机译:UFFO(超快闪天文台)探路者是计划于2011年11月发射的罗蒙诺索夫卫星上的太空仪器。它的设计目的是非常快地观测伽玛射线爆裂(GRB)的光学对应物。它由两个子系统组成; i)UBAT(UFFO爆炸警报和触发望远镜)和ii)SMT(后视镜望远镜)。这项研究涉及SMT光电机械子系统的设计和光学性能测试。 SMT是F / 11.4里奇-克雷蒂安(Ritchey-Chretien)型望远镜,得益于紧凑的设计和较短的光管组件,给定的焦距为1,140 mm。 SMT设计为可在200 nm至650 nm之间的宽波长范围内工作,并具有17 arcmin FOV(视场),可提供4 arcsec的探测器像素分辨率。主检测器是像素尺寸为22.2μm的256×256 ICCD(增强型电荷耦合器件)。这种SMT设计提供了良好的成像性能,包括在22.22 / mm的奈奎斯特频率下,MTF为0.77,RMS点半径为2.7μm。主镜(M1)和副镜(M2)是双曲表面,并且在RMS表面误差的1/50波(He-Ne,632.8nm)内制造。完成初始集成后,SMT光电机械子系统在室温下达到的系统波前误差优于1/10个波。然后,我们在热循环和振动条件下测试了光机械性能。在这项研究中,我们报告了SMT子系统设计解决方案和集成以及热和振动测试结果。

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  • 来源
    《Optical design and engineering IV》|2011年|p.81671C.1-81671C.7|共7页
  • 会议地点 Marseille(FR)
  • 作者单位

    Space Optics Laboratory, Dept. of Astronomy, Yonsei University, Korea,Institute of Space Science and Terminology, Yonsei University, Korea;

    Dept. of Physics, Ewha Womans University, Korea;

    Space Optics Laboratory, Dept. of Astronomy, Yonsei University, Korea,Institute of Space Science and Terminology, Yonsei University, Korea;

    National Taiwan University, Taiwan;

    National Taiwan University, Taiwan;

    Korea Institute of Industrial Technology, Korea;

    Korea Advanced Institute of Science and Technology, Korea;

    Berkeley Center for Cosmological Physics (BCCP), University of California, USA.;

    Korea Advanced Institute of Science and Technology, Korea;

    National United University, Taiwan;

    Dept. of Physics, Ewha Womans University, Korea;

    Dept. of Physics, Ewha Womans University, Korea;

    Dept. of Physics, Ewha Womans University, Korea;

    Dept. of Physics, Ewha Womans University, Korea;

    Institute for the Early Universe, Ewha Womans University, Korea;

    Institute for the Early Universe, Ewha Womans University, Korea,Berkeley Center for Cosmological Physics (BCCP), University of California, USA.;

    National Taiwan University, Taiwan;

    Korea Advanced Institute of Science and Technology, Korea;

    Dept. of Physics, Ewha Womans University, Korea;

    Dept. of Physics, Ewha Womans University, Korea;

    Moscow State University, Moscow, Russia;

    Institute for the Early Universe, Ewha Womans University, Korea,Berkeley Center for Cosmological Physics (BCCP), University of California, USA.;

    Korea Advanced Institute of Science and Technology, Korea;

    Moscow State University, Moscow, Russia;

    Moscow State University, Moscow, Russia;

    Moscow State University, Moscow, Russia;

    Dept. of Physics, Ewha Womans University, Korea;

    Dept. of Physics, Ewha Womans University, Korea,Institute for the Early Universe, Ewha Womans University, Korea;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 设计;
  • 关键词

    telescope; opto-mechanical performance; gamma-ray burst; thermal cycling test; vibration test;

    机译:望远镜;光学机械性能;伽马射线爆发;热循环测试;振动测试;

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