A paper summarizing the joint development of a reflector using silicon by Tokyo Metropolitan University and JAXA was published in Applied Optics.。

In the X-ray telescope mounted on the conventional Japanese X-ray astronomical satellite, thin aluminum reflectors formed on a conical surface are arranged concentrically as much as possible.、Achieved light weight and large effective area。On the other hand、Thin aluminum reflectors have low rigidity and shape error limits angular resolution。there、We used a silicon substrate that has the same density as aluminum but is more than twice as rigid.、We are developing a telescope that has both light weight and high angular resolution according to the large effective area.。

In this paper, he is currently working with Nakaba-kun of Tokyo Metropolitan University D3 and OB of Tokyo Metropolitan University.:Mr. Numazawa, a research fellow at RIKEN, went from 2017 to 2019、The contents of the development of a silicon substrate with a deformed conical surface and its X-ray imaging evaluation are summarized.。

Title: Development of x-ray mirror foils using a hot plastic deformation process
Authors: Nozomi Nakaniwa, Yuichiro Ezoe, Masaki Numazawa, Mai Takeo, Manabu Ishida, Kumi Ishikawa, Kohei Morishita, and Kazuo Nakajima
Link: https://www.osapublishing.org/ao/abstract.cfm?uri=ao-59-28-8793