Reflectivity around the gold L-edges of X-ray reector of the soft X-ray telescope onboard ASTRO-H

Yoshitomo Maeda; Naomichi Kikuchi; Sho Kurashima; Manabu Ishida; Ryo Iizuka; Takayuki Hayashi; Takashi Okajima; Hironori Matsumoto; Ikuyuki Mitsuishi; Shigetaka Saji; Toshiki Sato; Sasagu Tachibana; Hideyuki Mori; Finn Erland Christensen; Nicolai Brejnholt; Kiyofumi Nitta; Tomoya Uruga

doi:10.1117/12.2275605

Reflectivity around the gold L-edges of X-ray reector of the soft X-ray telescope onboard ASTRO-H

Yoshitomo Maeda, Naomichi Kikuchi, Sho Kurashima, Manabu Ishida, Ryo Iizuka, Takayuki Hayashi, Takashi Okajima, Hironori Matsumoto, Ikuyuki Mitsuishi, Shigetaka Saji, Toshiki Sato, Sasagu Tachibana, Hideyuki Mori, Finn Erland Christensen, Nicolai Brejnholt, Kiyofumi Nitta, Tomoya Uruga

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Abstract

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 goldâ€² 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.

Original language	English
Title of host publication	Optics for EUV, X-Ray, and Gamma-Ray Astronomy VIII
Editors	Stephen L. O'Dell, Giovanni Pareschi
Number of pages	9
Volume	10399
Publisher	SPIE - International Society for Optical Engineering
Publication date	2017
Article number	103990Q
DOIs	https://doi.org/10.1117/12.2275605
Publication status	Published - 2017
Event	SPIE Optical Engineering + Applications 2017 - San Diego Convention Center, San Diego, United States Duration: 6 Aug 2017 → 10 Aug 2017 http://spie.org/conferences-and-exhibitions/past-conferences-and-exhibitions/optics-and-photonics-2017

Conference

Conference	SPIE Optical Engineering + Applications 2017
Location	San Diego Convention Center
Country/Territory	United States
City	San Diego
Period	06/08/2017 → 10/08/2017
Internet address	http://spie.org/conferences-and-exhibitions/past-conferences-and-exhibitions/optics-and-photonics-2017

Series	Proceedings of SPIE - The International Society for Optical Engineering
ISSN	0277-786X

Keywords

X-Rays
ATRO-H/Hitomi
Soft X-ray telescopes (SXTs)
Wolter type-I optics
Stray lights

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Maeda, Y., Kikuchi, N., Kurashima, S., Ishida, M., Iizuka, R., Hayashi, T., Okajima, T., Matsumoto, H., Mitsuishi, I., Saji, S., Sato, T., Tachibana, S., Mori, H., Christensen, F. E., Brejnholt, N., Nitta, K., & Uruga, T. (2017). Reflectivity around the gold L-edges of X-ray reector of the soft X-ray telescope onboard ASTRO-H. In S. L. O'Dell, & G. Pareschi (Eds.), Optics for EUV, X-Ray, and Gamma-Ray Astronomy VIII (Vol. 10399). Article 103990Q SPIE - International Society for Optical Engineering. https://doi.org/10.1117/12.2275605

Maeda, Yoshitomo ; Kikuchi, Naomichi ; Kurashima, Sho et al. / Reflectivity around the gold L-edges of X-ray reector of the soft X-ray telescope onboard ASTRO-H. Optics for EUV, X-Ray, and Gamma-Ray Astronomy VIII. editor / Stephen L. O'Dell ; Giovanni Pareschi. Vol. 10399 SPIE - International Society for Optical Engineering, 2017. (Proceedings of SPIE - The International Society for Optical Engineering).

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title = "Reflectivity around the gold L-edges of X-ray reector of the soft X-ray telescope onboard ASTRO-H",

abstract = "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{\^a}€² 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.",

keywords = "X-Rays, ATRO-H/Hitomi, Soft X-ray telescopes (SXTs), Wolter type-I optics, Stray lights",

author = "Yoshitomo Maeda and Naomichi Kikuchi and Sho Kurashima and Manabu Ishida and Ryo Iizuka and Takayuki Hayashi and Takashi Okajima and Hironori Matsumoto and Ikuyuki Mitsuishi and Shigetaka Saji and Toshiki Sato and Sasagu Tachibana and Hideyuki Mori and Christensen, {Finn Erland} and Nicolai Brejnholt and Kiyofumi Nitta and Tomoya Uruga",

year = "2017",

doi = "10.1117/12.2275605",

language = "English",

volume = "10399",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

publisher = "SPIE - International Society for Optical Engineering",

editor = "O'Dell, { Stephen L.} and Giovanni Pareschi",

booktitle = "Optics for EUV, X-Ray, and Gamma-Ray Astronomy VIII",

note = "SPIE Optical Engineering + Applications 2017 ; Conference date: 06-08-2017 Through 10-08-2017",

url = "http://spie.org/conferences-and-exhibitions/past-conferences-and-exhibitions/optics-and-photonics-2017",

}

Maeda, Y, Kikuchi, N, Kurashima, S, Ishida, M, Iizuka, R, Hayashi, T, Okajima, T, Matsumoto, H, Mitsuishi, I, Saji, S, Sato, T, Tachibana, S, Mori, H, Christensen, FE, Brejnholt, N, Nitta, K & Uruga, T 2017, Reflectivity around the gold L-edges of X-ray reector of the soft X-ray telescope onboard ASTRO-H. in SL O'Dell & G Pareschi (eds), Optics for EUV, X-Ray, and Gamma-Ray Astronomy VIII. vol. 10399, 103990Q, SPIE - International Society for Optical Engineering, Proceedings of SPIE - The International Society for Optical Engineering, SPIE Optical Engineering + Applications 2017, San Diego, California, United States, 06/08/2017. https://doi.org/10.1117/12.2275605

Reflectivity around the gold L-edges of X-ray reector of the soft X-ray telescope onboard ASTRO-H. / Maeda, Yoshitomo; Kikuchi, Naomichi; Kurashima, Sho et al.
Optics for EUV, X-Ray, and Gamma-Ray Astronomy VIII. ed. / Stephen L. O'Dell; Giovanni Pareschi. Vol. 10399 SPIE - International Society for Optical Engineering, 2017. 103990Q (Proceedings of SPIE - The International Society for Optical Engineering).

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

TY - GEN

T1 - Reflectivity around the gold L-edges of X-ray reector of the soft X-ray telescope onboard ASTRO-H

AU - Maeda, Yoshitomo

AU - Kikuchi, Naomichi

AU - Kurashima, Sho

AU - Ishida, Manabu

AU - Iizuka, Ryo

AU - Hayashi, Takayuki

AU - Okajima, Takashi

AU - Matsumoto, Hironori

AU - Mitsuishi, Ikuyuki

AU - Saji, Shigetaka

AU - Sato, Toshiki

AU - Tachibana, Sasagu

AU - Mori, Hideyuki

AU - Christensen, Finn Erland

AU - Brejnholt, Nicolai

AU - Nitta, Kiyofumi

AU - Uruga, Tomoya

PY - 2017

Y1 - 2017

N2 - 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 goldâ€² 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.

AB - 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 goldâ€² 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.

KW - X-Rays

KW - ATRO-H/Hitomi

KW - Soft X-ray telescopes (SXTs)

KW - Wolter type-I optics

KW - Stray lights

U2 - 10.1117/12.2275605

DO - 10.1117/12.2275605

M3 - Article in proceedings

VL - 10399

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Optics for EUV, X-Ray, and Gamma-Ray Astronomy VIII

A2 - O'Dell, Stephen L.

A2 - Pareschi, Giovanni

PB - SPIE - International Society for Optical Engineering

T2 - SPIE Optical Engineering + Applications 2017

Y2 - 6 August 2017 through 10 August 2017

ER -

Maeda Y, Kikuchi N, Kurashima S, Ishida M, Iizuka R, Hayashi T et al. Reflectivity around the gold L-edges of X-ray reector of the soft X-ray telescope onboard ASTRO-H. In O'Dell SL, Pareschi G, editors, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VIII. Vol. 10399. SPIE - International Society for Optical Engineering. 2017. 103990Q. (Proceedings of SPIE - The International Society for Optical Engineering). doi: 10.1117/12.2275605

Reflectivity around the gold L-edges of X-ray reector of the soft X-ray telescope onboard ASTRO-H

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