Optics + Company

[XOPT4-02] Development of X-ray optics for the solar flare sounding rocket FOXSI-4: ground calibration

*Kazuki Ampuku¹, Koki Sakuta¹, Ryuto Fujii¹, Yusuke Yoshida¹, Kumiko Okada¹, Keitoku Yoshihira¹, Tetsuo Kano¹, Naoki Ishida¹, Wataru Kato¹, Takafumi Onishi¹, Yoshitaka Inoue², Keisuke Tamura^3,4, Kikuko Miyata⁵, Noriyuki Narukage⁶, Gota Yamaguchi⁷, Shunsuke Ito⁸, Shutaro Mohri⁸, Takehiro Kume⁹, Yusuke Matsuzawa⁹, Yoichi Imamura⁹, Takahiro Saito⁹, Kentaro Hiraguri⁹, Hirokazu Hashizume⁹, Hidekazu Mimura^7,8, Ikuyuki Mitsuishi¹ (1. Nagoya University, 2. IMV CORPORATION, 3. NASA/GSFC, 4. University of Maryland, 5. Maijo University, 6. National Astronomical Observatory Japan, 7. RIKEN/ SPring-8, 8. The University of Tokyo, 9. Natsume Optical Corporation)

We have been developing X-ray optics for FOXSI-4. We fabricated two types of X-ray optics specified for soft / hard X-ray observations and conducted X-ray irradiation tests to evaluate X-ray performances. Consequently, we confirmed that the resultant energy dependence of the effective area is consistent with the expected values. We will report the details and the latest status of our optics.