Measurement of re ectivity of X-ray mirror for soft x-ray telescope onboard ASTRO-H

Satoshi Sugita, Akihiro Furuzawa, Kazunori Ishibashi, Keisuke Tamura, Takashi Okajima, Yoshitomo Maeda, Takuro Sato, Kou Ichihara, Kazuki Tomikawa, Ryo Iizuka, Takashi Awaya, Kohta Okada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

X-ray reflection mirror of the Soft X-ray Telescope onboard ASTRO-H was coated by gold thin layer. Gold have M-shell X-ray absorption edge around 2 keV which is included in the energy band covered with the focal plane detector such as Soft X-ray Imager and Soft X-ray Spectrometer. It is important to make response function taken int account the Au M-dege structure especially for the Soft X-ray Spectrometer because It has unprecedented high energy resolution of 5 eV from 0.3 to 12 keV. We performed the detailed measurements of of reflectivity of the mirror using reflectometer in the synchrotron radiation facility KEK PF BL-11B from Nov. 29, 2011 to Dec. 5. X-ray beam of BL-11B was monochromatized to E/deltaE of 5000 by Double crystal monochromator using Si(111). We obtained the reflectivity at the grazing incident angles of 1.0, 1.2, and 1.4 degrees. While the energy pitch was set to be 2 eV in the 2.1-4.1 keV band, the reflectivity in the 2.2-2.35 keV band was also measured in detail with the energy pitch of 0.25 eV. We report the results and optical parameters of the SXT mirror such as reflectivity, and roughness calculated from the measurements.

Original languageEnglish
Title of host publicationSpace Telescopes and Instrumentation 2012
Subtitle of host publicationUltraviolet to Gamma Ray
Volume8443
DOIs
Publication statusPublished - 01-12-2012
Externally publishedYes
EventSpace Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray - Amsterdam, Netherlands
Duration: 01-07-201206-07-2012

Other

OtherSpace Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray
CountryNetherlands
CityAmsterdam
Period01-07-1206-07-12

Fingerprint

x ray telescopes
X-ray Mirror
Soft X-ray
Reflectivity
Telescopes
Telescope
Mirrors
mirrors
X rays
Mirror
X ray spectrometers
Spectrometer
Gold
x rays
reflectance
Energy
Monochromator
X-ray Telescopes
Synchrotron Radiation
Thin Layer

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Sugita, S., Furuzawa, A., Ishibashi, K., Tamura, K., Okajima, T., Maeda, Y., ... Okada, K. (2012). Measurement of re ectivity of X-ray mirror for soft x-ray telescope onboard ASTRO-H. In Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray (Vol. 8443). [844358] https://doi.org/10.1117/12.926711
Sugita, Satoshi ; Furuzawa, Akihiro ; Ishibashi, Kazunori ; Tamura, Keisuke ; Okajima, Takashi ; Maeda, Yoshitomo ; Sato, Takuro ; Ichihara, Kou ; Tomikawa, Kazuki ; Iizuka, Ryo ; Awaya, Takashi ; Okada, Kohta. / Measurement of re ectivity of X-ray mirror for soft x-ray telescope onboard ASTRO-H. Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray. Vol. 8443 2012.
@inproceedings{7e6da59386e647b0b28077a22a3b96b0,
title = "Measurement of re ectivity of X-ray mirror for soft x-ray telescope onboard ASTRO-H",
abstract = "X-ray reflection mirror of the Soft X-ray Telescope onboard ASTRO-H was coated by gold thin layer. Gold have M-shell X-ray absorption edge around 2 keV which is included in the energy band covered with the focal plane detector such as Soft X-ray Imager and Soft X-ray Spectrometer. It is important to make response function taken int account the Au M-dege structure especially for the Soft X-ray Spectrometer because It has unprecedented high energy resolution of 5 eV from 0.3 to 12 keV. We performed the detailed measurements of of reflectivity of the mirror using reflectometer in the synchrotron radiation facility KEK PF BL-11B from Nov. 29, 2011 to Dec. 5. X-ray beam of BL-11B was monochromatized to E/deltaE of 5000 by Double crystal monochromator using Si(111). We obtained the reflectivity at the grazing incident angles of 1.0, 1.2, and 1.4 degrees. While the energy pitch was set to be 2 eV in the 2.1-4.1 keV band, the reflectivity in the 2.2-2.35 keV band was also measured in detail with the energy pitch of 0.25 eV. We report the results and optical parameters of the SXT mirror such as reflectivity, and roughness calculated from the measurements.",
author = "Satoshi Sugita and Akihiro Furuzawa and Kazunori Ishibashi and Keisuke Tamura and Takashi Okajima and Yoshitomo Maeda and Takuro Sato and Kou Ichihara and Kazuki Tomikawa and Ryo Iizuka and Takashi Awaya and Kohta Okada",
year = "2012",
month = "12",
day = "1",
doi = "10.1117/12.926711",
language = "English",
isbn = "9780819491442",
volume = "8443",
booktitle = "Space Telescopes and Instrumentation 2012",

}

Sugita, S, Furuzawa, A, Ishibashi, K, Tamura, K, Okajima, T, Maeda, Y, Sato, T, Ichihara, K, Tomikawa, K, Iizuka, R, Awaya, T & Okada, K 2012, Measurement of re ectivity of X-ray mirror for soft x-ray telescope onboard ASTRO-H. in Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray. vol. 8443, 844358, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray, Amsterdam, Netherlands, 01-07-12. https://doi.org/10.1117/12.926711

Measurement of re ectivity of X-ray mirror for soft x-ray telescope onboard ASTRO-H. / Sugita, Satoshi; Furuzawa, Akihiro; Ishibashi, Kazunori; Tamura, Keisuke; Okajima, Takashi; Maeda, Yoshitomo; Sato, Takuro; Ichihara, Kou; Tomikawa, Kazuki; Iizuka, Ryo; Awaya, Takashi; Okada, Kohta.

Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray. Vol. 8443 2012. 844358.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Measurement of re ectivity of X-ray mirror for soft x-ray telescope onboard ASTRO-H

AU - Sugita, Satoshi

AU - Furuzawa, Akihiro

AU - Ishibashi, Kazunori

AU - Tamura, Keisuke

AU - Okajima, Takashi

AU - Maeda, Yoshitomo

AU - Sato, Takuro

AU - Ichihara, Kou

AU - Tomikawa, Kazuki

AU - Iizuka, Ryo

AU - Awaya, Takashi

AU - Okada, Kohta

PY - 2012/12/1

Y1 - 2012/12/1

N2 - X-ray reflection mirror of the Soft X-ray Telescope onboard ASTRO-H was coated by gold thin layer. Gold have M-shell X-ray absorption edge around 2 keV which is included in the energy band covered with the focal plane detector such as Soft X-ray Imager and Soft X-ray Spectrometer. It is important to make response function taken int account the Au M-dege structure especially for the Soft X-ray Spectrometer because It has unprecedented high energy resolution of 5 eV from 0.3 to 12 keV. We performed the detailed measurements of of reflectivity of the mirror using reflectometer in the synchrotron radiation facility KEK PF BL-11B from Nov. 29, 2011 to Dec. 5. X-ray beam of BL-11B was monochromatized to E/deltaE of 5000 by Double crystal monochromator using Si(111). We obtained the reflectivity at the grazing incident angles of 1.0, 1.2, and 1.4 degrees. While the energy pitch was set to be 2 eV in the 2.1-4.1 keV band, the reflectivity in the 2.2-2.35 keV band was also measured in detail with the energy pitch of 0.25 eV. We report the results and optical parameters of the SXT mirror such as reflectivity, and roughness calculated from the measurements.

AB - X-ray reflection mirror of the Soft X-ray Telescope onboard ASTRO-H was coated by gold thin layer. Gold have M-shell X-ray absorption edge around 2 keV which is included in the energy band covered with the focal plane detector such as Soft X-ray Imager and Soft X-ray Spectrometer. It is important to make response function taken int account the Au M-dege structure especially for the Soft X-ray Spectrometer because It has unprecedented high energy resolution of 5 eV from 0.3 to 12 keV. We performed the detailed measurements of of reflectivity of the mirror using reflectometer in the synchrotron radiation facility KEK PF BL-11B from Nov. 29, 2011 to Dec. 5. X-ray beam of BL-11B was monochromatized to E/deltaE of 5000 by Double crystal monochromator using Si(111). We obtained the reflectivity at the grazing incident angles of 1.0, 1.2, and 1.4 degrees. While the energy pitch was set to be 2 eV in the 2.1-4.1 keV band, the reflectivity in the 2.2-2.35 keV band was also measured in detail with the energy pitch of 0.25 eV. We report the results and optical parameters of the SXT mirror such as reflectivity, and roughness calculated from the measurements.

UR - http://www.scopus.com/inward/record.url?scp=84871739692&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84871739692&partnerID=8YFLogxK

U2 - 10.1117/12.926711

DO - 10.1117/12.926711

M3 - Conference contribution

AN - SCOPUS:84871739692

SN - 9780819491442

VL - 8443

BT - Space Telescopes and Instrumentation 2012

ER -

Sugita S, Furuzawa A, Ishibashi K, Tamura K, Okajima T, Maeda Y et al. Measurement of re ectivity of X-ray mirror for soft x-ray telescope onboard ASTRO-H. In Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray. Vol. 8443. 2012. 844358 https://doi.org/10.1117/12.926711