2016年10月
Atomic scattering factor of the ASTRO-H (Hitomi) SXT reflector around the gold's L edges
OPTICS EXPRESS
- 巻
- 24
- 号
- 22
- 開始ページ
- 25548
- 終了ページ
- 25564
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1364/OE.24.025548
- 出版者・発行元
- OPTICAL SOC AMER
The atomic scattering factor in the energy range of 11.2-15.4 keV for the ASTROH Soft X-ray Telescope (SXT) is reported. The large effective area of the SXT makes use of photon spectra above 10 keV viable, unlike most other X-ray satellites with total-reflection mirror optics. Presence of gold's L-edges in the energy band is a major issue, as it complicates the function of the effective area. In order to model the area, the reflectivity measurements in the 11.2-15.4 keV band with the energy pitch of 0.4-0.7 eV were made in the synchrotron beamline Spring-8 BL01B1. We obtained atomic scattering factors f1 and f2 by the curve fitting to the reflectivities of our witness sample. The edges associated with the L-I, II, and III transitions are identified, of which the depths are found to be roughly 60% shallower than those expected from the Henke's atomic scattering factor. (C) 2016 Optical Society of America
- リンク情報
- ID情報
-
- DOI : 10.1364/OE.24.025548
- ISSN : 1094-4087
- Web of Science ID : WOS:000388413400085