Conference paper
Reflectivity around the gold L-edges of X-ray reector of the soft X-ray telescope onboard ASTRO-H
Japan Aerospace Exploration Agency1
The Graduate University for Advanced Studies2
NASA Goddard Space Flight Center3
Nagoya University4
National Space Institute, Technical University of Denmark5
Astrophysics and Atmospheric Physics, National Space Institute, Technical University of Denmark6
Lawrence Livermore National Laboratory7
Japan Synchrotron Radiation Research Institute8
We report the atomic scattering factor in the 11.2-15.4 keV for the ASTRO-H Soft X-ray Telescope (SXT)9 obtained in the ground based measurements. The large effective area of the SXT covers above 10 keV. In fact, the flight data show the spectra of the celestical objects in the hard X-ray band. 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 gold′ s 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.
| Language: | English |
|---|---|
| Publisher: | SPIE - International Society for Optical Engineering |
| Year: | 2017 |
| Pages: | 103990Q-103990Q-8 |
| Proceedings: | SPIE Optics + Photonics 2017 |
| Series: | Proceedings of Spie - the International Society for Optical Engineering |
| ISBN: | 1510612556 , 1510612564 , 9781510612556 and 9781510612563 |
| ISSN: | 1996756x and 0277786x |
| Types: | Conference paper |
| DOI: | 10.1117/12.2275605 |
| ORCIDs: | Christensen, Finn Erland |
