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首页> 外文期刊>Advances in space research >Ray-tracing simulations for the ultra-lightweight X-ray optics toward a future jupiter exploration mission
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Ray-tracing simulations for the ultra-lightweight X-ray optics toward a future jupiter exploration mission

机译：超轻型X射线光学器件的射线追踪模拟，用于未来的木星探索任务

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摘要

To investigate a feasibility for in situ X-ray imaging spectrometer JUXTA (Jupiter X-ray Telescope Array) onboard a Japanese Jupiter exploration mission, we demonstrated the ideal performances, i.e., angular resolution, effective area and grasp, of our original, conically-approximated Wolter type-Ⅰ MEMS-processed optics, by extending the previous ray-tracing simulator. The novel simulator enables us to study both on- and off-axis responses for our optics with two-stage optical configurations for the first time. The on-axis angular resolution is restricted to ～13 μm corresponding to ～10 arcsec on the detector plane without considering the diffraction effect and dominated by the diffraction effect below ～1 keV (e.g., 13 arcsec at 1 keV). Si optics can achieve effective area of ＞700mm~2 and grasp of ＞1600 mm~2 deg~2 at our interesting energy of 600 eV. Larger effective area and grasp can be attained by employing Ni as a substrate material or Ir as a reflecting surface material. However, other factors produced in the fabrication processes such as the waviness on the mirror surface and the deformation error cause the significant performance degradation. Thus, we concluded that MEMS-processed optics can satisfy all the requirements of JUXTA only if the manufacturing accuracy can be controlled.
机译：为了研究日本木星探测任务上的原位X射线成像光谱仪JUXTA（木星X射线望远镜阵列）的可行性，我们展示了我们最初的圆锥形理想性能，即角分辨率，有效面积和抓地力，通过扩展先前的光线跟踪模拟器，近似于WolterⅠ型MEMS处理的光学器件。新颖的模拟器使我们能够首次研究具有两级光学配置的光学系统的轴上和轴外响应。在不考虑衍射效应的情况下，在检测器平面上，轴上的角分辨率限制为〜13μm（对应于〜10 arcsec），并且以低于1 keV（例如，在1 keV时为13 arcsec）为主。硅光学器件可以在我们有趣的600 eV能量下实现＞ 700mm〜2的有效面积和＞ 1600 mm〜2 deg〜2的抓地力。通过使用Ni作为基底材料或Ir作为反射表面材料，可以获得更大的有效面积和抓地力。但是，在制造过程中产生的其他因素，例如镜面上的波纹度和变形误差会导致性能显着下降。因此，我们得出结论，只有能够控制制造精度，MEMS处理的光学器件才能满足JUXTA的所有要求。

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  • 来源
    《Advances in space research》 |2016年第1期|320-328|共9页
  • 作者

    I. Mitsuishi; Y. Ezoe; T. Ogawa; M. Sato; K. Nakamura; M. Numazawa; K. Takeuchi; T. Ohashi; K. Ishikawa; K. Mitsuda;

  • 作者单位

    Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Osawa Hachioji, Tokyo 192-0397, Japan,Division of Particle and Astrophysical Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan;

    Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Osawa Hachioji, Tokyo 192-0397, Japan;

    Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Osawa Hachioji, Tokyo 192-0397, Japan;

    Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Osawa Hachioji, Tokyo 192-0397, Japan;

    Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Osawa Hachioji, Tokyo 192-0397, Japan;

    Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Osawa Hachioji, Tokyo 192-0397, Japan;

    Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Osawa Hachioji, Tokyo 192-0397, Japan;

    Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Osawa Hachioji, Tokyo 192-0397, Japan;

    Nishina Center, Institute of Physical and Chemical Research (RIKEN), Wako, Saitama 351-0198, Japan;

    Department of Space Astronomy and Astrophysics, ISAS/JAXA, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 220-8510, Japan;

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  • 正文语种 eng
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  • 关键词

    X-ray; Optics; MEMS; JUXTA;

    机译：S射线光学;男人尤斯特拉;

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