Development of Ultra-Precision X-ray Mirror towards Future Solar Observations

面向未来太阳观测的超精密 X 射线镜的开发

• 批准号: 24654053
• 负责人: SAKAO Taro
• 金额: $ 2.41万
• 依托单位: Japan Aerospace Exploration Agency
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-24654053/
• 关键词: 太陽物理学; X線結像光学; 超精密計測; 量子ビーム; 精密研磨; 宇宙科学; 太陽X線物理学

This research aims to acquire key technology elements for developing high-precision grazing-incidence X-ray mirrors that are needed for performing sub-arcsecond resolution imagery of the solar corona in X-rays. For this perpose, an engineering Wolter mirror was fabricated and technical issues during the course of high-precision surface polish of the mirror were identified. X-ray focusing performance of the mirror was then measured at SPring-8 synchrotron radiation facility with 8 keV X-rays. It was confirmed that the measured intensity profiles of the focusing X-rays are in good agreement with those synthesized through wave-optical calculation of X-rays from the surface figure profile measured during the high-precision polish. Although sub-arcsecond resolution was not fully achieved with the engineering mirror, critical pieces of knowledge were successfully acquired towards the subsequent fabrication of sub-arcsecond Wolter mirrors for astrophysical applications.

本研究旨在获得开发高精度掠射x射线反射镜所需的关键技术要素，该反射镜需要在x射线中进行亚弧秒分辨率的日冕成像。为此，制作了一种工程Wolter镜面，并对镜面高精度表面抛光过程中的技术问题进行了分析。然后在SPring-8同步辐射装置上用8 keV x射线测量了镜面的x射线聚焦性能。结果表明，高精度抛光过程中所测得的聚焦x射线强度分布图与光波光学计算所合成的x射线强度分布图吻合较好。虽然亚弧秒的分辨率并没有完全达到工程反射镜，但成功地获得了用于天体物理应用的亚弧秒沃尔特反射镜的后续制造的关键知识。

项目成果

The soft x-ray photon-counting spectroscopic imager for the sun

• DOI: 10.1117/12.2024753
• 发表时间: 2013-09
• 作者: T. Sakao;N. Narukage;M. Shimojo;Kyoko Watanabe;Y. Suematsu;S. Imada;S. Ishikawa

The soft x-ray photon-counting telescope for solar observations

用于太阳观测的软 X 射线光子计数望远镜

• DOI: 10.1117/12.2055925
• 发表时间: 2014
• 期刊: Proc. SPIE
• 作者: Sakao;T.;Narukage;N.;Suematsu;Y.;Watanabe;K.;Shimojo;M.;Imada;S.;Ishikawa;S.;and DeLuca;E. E.
• 通讯作者: E. E.

搭載X線望遠鏡の検討状況(1V)

星载X射线望远镜研究现状（1V）

• 发表时间: 2013
• 作者: 坂尾太郎;成影典之;渡遺恭子;下条圭美;末松芳法;石川真之介;常回佐久;今回晋亮;E. E. DeLuca;ほかSolar-C WG Solar-C
• 通讯作者: ほかSolar-C WG Solar-C

SOLAR-C X線/EUV望遠鏡の検討状況

SOLAR-C X射线/EUV望远镜研究现状

• 发表时间: 2014
• 作者: 坂尾太郎;渡遺恭子;成影典之;末松芳法;下条圭美;石川真之介;今回晋亮;E. E. DeLuca、]. W. Cirtain;ほかSOLAR-C X線望遠鏡検討グループ
• 通讯作者: ほかSOLAR-C X線望遠鏡検討グループ

Development of an X-ray slope profiler for Wolter mirror - Performance evaluation using wave-optical simulator -

开发沃尔特镜 X 射线斜率轮廓仪 - 使用波动光学模拟器进行性能评估 -

• 发表时间: 2013
• 作者: Kime,A;Matsuyama,S;Fukui,R;Sakao,T;Suematsu,Y;Yamauchi,K
• 通讯作者: Yamauchi,K