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Reflectivity Around the Gold L-Edges of X-Ray Reflector of the Soft X-Ray Telescope Onboard ASTRO-HWe report the atomic scattering factor in the 11.215.4 keV for the ASTRO-H Soft X-ray Telescope (SXT) 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 golds L-I, II, and III transitions are identified, of which the depths are found to be roughly 60 percent shallower than those expected from the Henke's atomic scattering factor.
Document ID
20170006059
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
External Source(s)
Authors
Maeda, Yoshitomo
(Japan Aerospace Exploration Agency Sagamihara, Japan)
Kikuchi, Naomichi
(Graduate Univ. for Advanced Studies Japan)
Kurashima, Sho
(Graduate Univ. for Advanced Studies Japan)
Ishida, Manabu
(Japan Aerospace Exploration Agency Sagamihara, Japan)
Iizuka, Ryo
(Japan Aerospace Exploration Agency Sagamihara, Japan)
Hayashi, Takayuki
(Nagoya Univ. Nagoya, Japan)
Okajima, Takashi
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Matsumoto, Hironori
(Nagoya Univ. Nagoya, Japan)
Mitsuishi, Ikuyuki
(Nagoya Univ. Nagoya, Japan)
Saji, Shigetaka
(Nagoya Univ. Nagoya, Japan)
Sato, Toshiki
(Graduate Univ. for Advanced Studies Japan)
Tachibana, Sasagu
(Nagoya Univ. Nagoya, Japan)
Mori, Hideyuki
(Maryland Univ. Baltimore County Baltimore, MD, United States)
Christensen, Finn
(Technical Univ. of Denmark Lyngby, Denmark)
Brejnholt, Nicolai
(Lawrence Livermore National Lab. Livermore, CA, United States)
Nitta, Kiyofumi
(Institute of Physical and Chemical Research Saitama, Japan)
Uruga, Tomoya
(Institute of Physical and Chemical Research Saitama, Japan)
Date Acquired
July 3, 2017
Publication Date
July 18, 2016
Publication Information
Publication: SPIE Proceedings
Publisher: SPIE
Volume: 9905
e-ISSN: 0277-786X
Subject Category
Astrophysics
Report/Patent Number
GSFC-E-DAA-TN43772
Meeting Information
Meeting: Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray
Location: Edinburgh, Scotland
Country: United Kingdom
Start Date: June 26, 2016
End Date: July 1, 2016
Sponsors: International Society for Optical Engineering
Funding Number(s)
CONTRACT_GRANT: NNG17PT01A
Distribution Limits
Public
Copyright
Other
Keywords
X-rays
Wolter Type-I optics
Soft X-ray Telescopes (SXTs)
ASTRO-H/Hitomi
stray lights

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