Development of EUV telescope for planetary plasma imgery

开发用于行星等离子体成像的 EUV 望远镜

• 批准号: 06452088
• 负责人: NAKAMURA Masato
• 金额: $ 4.8万
• 依托单位: University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-06452088/
• 关键词: Extreme ultra violet light; Helium ion; Thin metal filter; resonance scattering; multilayr coated mirror; フィルター; 酸素イオン; 反射鏡; 測定系; 性能評価

We have strated the present study to developed a EUV telescope for planetary plasma imager. We have constructed the EUV test facility. It consists of a discharge chamber to emit the EUV light, the UV monochrometer to introduce the EUV light into the main vacuum chamber, and rotation table in the main chamber on which the sample mirrors and filters are set to be calibrated.During 1996-1997FY,we have made several sample multilayr-coated mirrors. They are designed to maximize the reflectivity in the EUV wavelenght range. Also measured are the transmittance of thin metal filters and quantum efficiency of the micro-channel plates with CsI coating. After these measurement we have constructed a extreme-ultraviolet scanner (XUV) to be onboard the Mars orbitor PLANET-B.This scanner is designed to measure the HeI and HeII emissions from Helium ions and atoms in the Martian atmosphere. It consists of a Mo/Si multilayr-coated mirror, Al/C thin filter, and a MCP with CsI coating. All these components are well tested during this research. It is built after considering the space vacuum environment. The roughness of the multilayr coated mirror is about 1 * and the 25% reflectivity is obtained at 304 and 584*. The total performance of XUV is now under calibration. XUV is considered to be the final achievement of the present study to develop a telescope for EUV plasma imagery.

本研究旨在研制一台用于行星等离子体成像仪的极紫外望远镜。我们已经建立了EUV测试设施。它包括一个发射极紫外光的放电室、一个将极紫外光引入主真空室的紫外单色仪和一个安装在主真空室上的旋转台，在旋转台上安装了用于校准的样品镜和滤光片。它们被设计为在EUV波长范围内最大化反射率。测量了金属薄膜滤光片的透过率和CsI涂层微通道板的量子效率。在这些测量之后，我们已经构建了一个极紫外扫描仪（XUV），该扫描仪被设计用于测量火星大气中氦离子和原子的HeI和HeII发射。它由Mo/Si多层膜反射镜、Al/C薄滤光片和CsI膜MCP组成。所有这些组件都在本研究中得到了很好的测试。它是在考虑空间真空环境后建造的。多层膜反射镜的粗糙度约为1 *，在304和584* 下获得25%的反射率。XUV的总体性能目前正在校准中。XUV被认为是本研究的最后成果，以开发用于EUV等离子体成像的望远镜。

项目成果

吉川一朗、他: "S-520-1号機搭載Helium Emission Monitorによるプラズマ圏ヘリウムイオンの光学観測に関する研究" 宇宙科学研究所報告. 91号. 1-36 (1997)

Ichiro Yoshikawa 等人：“利用 S-520-1 上的氦发射监测器对等离子体层中的氦离子进行光学观测的研究” 空间与宇航科学研究所的报告 91, 1-36 (1997)。

Harada, T., H.Sakuma, T.Kita, and M.Nakamura: "Design of EUV spectrometer with stigmatic image focusing using spherical veried line-space gratings" Proc. SPIE '94, (San Diego). vol. 2283. 180-188 (1994)

Harada, T.、H.Sakuma、T.Kita 和 M.Nakamura：“使用球面验证线空间光栅进行像散图像聚焦的 EUV 光谱仪设计”Proc。

Yamazaki,T.,et al.: "Rocket-borne observation of galactic EUV emission with normal incidence telescopes,UV and X-ray Spectroscopy of Astrophysical and Laboratory Plasmas" Frontiers Science Series ed. by k.Yamashita and T.Watanabe,Universal Academy Press,T

Yamazaki,T.,et al.：“用正入射望远镜对银河 EUV 发射进行火箭载观测，天体物理和实验室等离子体的紫外和 X 射线光谱”前沿科学系列版。

Y.Yoshikawa, M.Nakamura, et al.: "Plasmaspheric Helium ion imagery with the sounding rocket S-520-19 onboard XUV" ISAS Research Report 91. (1997)

Y.Yoshikawa、M.Nakamura 等人：“XUV 上的探空火箭 S-520-19 的等离子层氦离子图像”ISAS 研究报告 91。（1997 年）

Kunieda, H., K.Yamashita, T.Yamazaki, K.Ikeda, K.Misaki, Y.Takizawa, M.Nakamura, I.Yoshikawa, and A.Yamaguchi: "EUV Observation with Normal Incidence Multilayr Telescopes" "Astrophysics in the Extreme Ultraviolet"(ed. By S.Bowyer and R.F.Malina), Kluwer A

Kunieda, H.、K.Yamashita、T.Yamazaki、K.Ikeda、K.Misaki、Y.Takizawa、M.Nakamura、I.Yoshikawa 和 A.Yamaguchi：“使用正入射多层望远镜进行 EUV 观测”“天体物理学