Development of X-ray polarimetry with bent Si crystals and CFRP substrate

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K21679
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Astronomy; Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Japan Aerospace EXploration Agency
• Principal Investigator: Iizuka Ryo 国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 研究開発員 (50548120)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: X線天文学 / X線偏光計 / ブラッグ反射 / CFRP / シリコン結晶

Outline of Final Research Achievements

X-ray polarization is the key to search for the spatial structure and emission mechanism around the celestial object in the extreme condition. However, the progress for the polarimetry is considerably delayed because of technical difficulties. In order to make a breakthrough in the field of X-ray polarimetry, we have developed a Bragg-type polarimeter which large effective area and high polarization sensitivity which is specialized near the iron emission line, by using CFRP for the paraboloid of revolution and sticking a Si single crystal. As a results, we have established a method to fabricate a large paraboloid of revolution mirror by integrally molding CFRP and Si crystal. The simulation from the evaluated results found that the produced polarimeter is the optimum optical system.

Free Research Field

X線天文学