16 - 21 June 2024
Yokohama, Japan
Conference 13093 > Paper 13093-41
Paper 13093-41

Development of lightweight x-ray mirrors using carbon fiber reinforced plastic and ultra-precision machining technology

18 June 2024 • 11:40 - 12:00 Japan Standard Time | Room G414/415, North - 4F

Abstract

Light-weight X-ray mirrors with a high-angular resolution and a large effective area are required to clarify the physical mechanism of the coevolution of galaxies and black holes. To realize such X-ray mirrors, we are developing X-ray mirrors using the carbon fiber reinforced plastic (CFRP); CFRP is a light, but strong material, and it can be processed into a variety of shapes. However, CFRP has a finely textured surface, which is called print through. The surface is too rough to reflect X-rays due to the print though. In order to mitigate the print through, we developed a method to form a thin amorphous NiP layer on the surface of CFRP. Then the NiP surface was finished by ultra-precision machining technology to achieve sufficient surface roughness to reflect X-rays. An X-ray reflectivity measurement for a prototype CFRP-NiP flat mirror using the ISAS X-ray beam line confirmed that the surface roughness was sufficient to reflect X-rays of a few keV. We are also developing the prototype of the Wolter-I type mirror, which is reported in this talk.

Presenter

Osaka Univ. (Japan)
Hironori Matsumoto is an X-ray astronomer. He is interested in supernova remnants, galaxy clusters, and so on. He is also interested in X-ray optics.
Presenter/Author
Osaka Univ. (Japan)
Author
Tokyo Denki Univ. (Japan)
Author
Osaka Univ. (Japan)
Author
Ehime Univ. (Japan)
Author
RIKEN (Japan)
Author
Haruki Kuramoto
Osaka Univ. (Japan)
Author
Tokyo Denki Univ. (Japan)
Author
Osaka Univ. (Japan)
Author
RIKEN (Japan)
Author
Yutaka Yamagata
RIKEN (Japan)