X–ray telescope onboard astro–E. II. Ground–based x–ray characterization

Ryo Shibata, Manabu Ishida, Hideyo Kunieda, Takao Endo, Hirohiko Honda, Kazutami Misaki, Jun’ichi Ishida, Kohsuke Imamura, Yasuhiro Hidaka, Masamichi Maeda, Yuzuru Tawara, Yasushi Ogasaka, Akihiro Furuzawa, Manabu Watanabe, Yuichi Terashima, Tsutomu Yoshioka, Takashi Okajima, Koujun Yamashita, Peter J. Serlemitsos, Yang Soong & 1 others Kai Wing Chan

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

X-ray characterization measurements of the x-ray telescope (XRT) onboard the Astro–E satellite were carried out at the Institute of Space and Astronautical Science (Japan) x–ray beam facility by means of a raster scan with a narrow x–ray pencil beam. The on–axis half–power diameter (HPD) was evaluated to be 1.8’–2.2’, irrespective of the x–ray energy. The on–axis effective areas of the XRTs for x–ray imaging spectrometers (XISs) were approximately 440, 320, 240, and 170 cm2 at energies of 1.49, 4.51, 8.04, and 9.44 keV, respectively. Those of the x–ray spectrometer (XRS) were larger by 5–10%. The replication method introduced for reflector production significantly improved the imaging capability of the Advanced Satellite for Cosmology and Astrophyics (ASCA) XRT, whose HPD is -3.6’. The increase in the effective area by a factor of 1.5–2.5, depending upon the x–ray energy, compared with that of the ASCA, was brought about by mechanical scale up and longer focal lengths. The off–axis HPDs were almost the same as those obtained on the optical axis. The field of view is defined as the off–axis angle at which the effective area becomes half of the on–axis value. The diameter of the field of view was - 19’ at 1.49 keV, decreasing with increasing x–ray energy, and became -13’ at 9.44 keV. The intensity of stray light and the distribution of this kind of light on the focal plane were measured at the large off–axis angles 30’ and 60’. In the entire XIS field of view (25.4 mm × 25.4 mm), the intensity of the stray light caused by a pointlike x–ray source became at most 1% of the same pointlike source that was on the optical axis.

Original languageEnglish
Pages (from-to)3762-3783
Number of pages22
JournalApplied Optics
Volume40
Issue number22
DOIs
Publication statusPublished - 01-08-2001

Fingerprint

Telescopes
Cosmology
Stray light
Spectrometers
x ray telescopes
Satellites
telescopes
field of view
Imaging techniques
X rays
imaging spectrometers
cosmology
pencil beams
energy
aerospace sciences
reflectors
Japan
spectrometers
x rays

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

Cite this

Shibata, R., Ishida, M., Kunieda, H., Endo, T., Honda, H., Misaki, K., ... Chan, K. W. (2001). X–ray telescope onboard astro–E. II. Ground–based x–ray characterization. Applied Optics, 40(22), 3762-3783. https://doi.org/10.1364/AO.40.003762
Shibata, Ryo ; Ishida, Manabu ; Kunieda, Hideyo ; Endo, Takao ; Honda, Hirohiko ; Misaki, Kazutami ; Ishida, Jun’ichi ; Imamura, Kohsuke ; Hidaka, Yasuhiro ; Maeda, Masamichi ; Tawara, Yuzuru ; Ogasaka, Yasushi ; Furuzawa, Akihiro ; Watanabe, Manabu ; Terashima, Yuichi ; Yoshioka, Tsutomu ; Okajima, Takashi ; Yamashita, Koujun ; Serlemitsos, Peter J. ; Soong, Yang ; Chan, Kai Wing. / X–ray telescope onboard astro–E. II. Ground–based x–ray characterization. In: Applied Optics. 2001 ; Vol. 40, No. 22. pp. 3762-3783.
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abstract = "X-ray characterization measurements of the x-ray telescope (XRT) onboard the Astro–E satellite were carried out at the Institute of Space and Astronautical Science (Japan) x–ray beam facility by means of a raster scan with a narrow x–ray pencil beam. The on–axis half–power diameter (HPD) was evaluated to be 1.8’–2.2’, irrespective of the x–ray energy. The on–axis effective areas of the XRTs for x–ray imaging spectrometers (XISs) were approximately 440, 320, 240, and 170 cm2 at energies of 1.49, 4.51, 8.04, and 9.44 keV, respectively. Those of the x–ray spectrometer (XRS) were larger by 5–10{\%}. The replication method introduced for reflector production significantly improved the imaging capability of the Advanced Satellite for Cosmology and Astrophyics (ASCA) XRT, whose HPD is -3.6’. The increase in the effective area by a factor of 1.5–2.5, depending upon the x–ray energy, compared with that of the ASCA, was brought about by mechanical scale up and longer focal lengths. The off–axis HPDs were almost the same as those obtained on the optical axis. The field of view is defined as the off–axis angle at which the effective area becomes half of the on–axis value. The diameter of the field of view was - 19’ at 1.49 keV, decreasing with increasing x–ray energy, and became -13’ at 9.44 keV. The intensity of stray light and the distribution of this kind of light on the focal plane were measured at the large off–axis angles 30’ and 60’. In the entire XIS field of view (25.4 mm × 25.4 mm), the intensity of the stray light caused by a pointlike x–ray source became at most 1{\%} of the same pointlike source that was on the optical axis.",
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Shibata, R, Ishida, M, Kunieda, H, Endo, T, Honda, H, Misaki, K, Ishida, J, Imamura, K, Hidaka, Y, Maeda, M, Tawara, Y, Ogasaka, Y, Furuzawa, A, Watanabe, M, Terashima, Y, Yoshioka, T, Okajima, T, Yamashita, K, Serlemitsos, PJ, Soong, Y & Chan, KW 2001, 'X–ray telescope onboard astro–E. II. Ground–based x–ray characterization', Applied Optics, vol. 40, no. 22, pp. 3762-3783. https://doi.org/10.1364/AO.40.003762

X–ray telescope onboard astro–E. II. Ground–based x–ray characterization. / Shibata, Ryo; Ishida, Manabu; Kunieda, Hideyo; Endo, Takao; Honda, Hirohiko; Misaki, Kazutami; Ishida, Jun’ichi; Imamura, Kohsuke; Hidaka, Yasuhiro; Maeda, Masamichi; Tawara, Yuzuru; Ogasaka, Yasushi; Furuzawa, Akihiro; Watanabe, Manabu; Terashima, Yuichi; Yoshioka, Tsutomu; Okajima, Takashi; Yamashita, Koujun; Serlemitsos, Peter J.; Soong, Yang; Chan, Kai Wing.

In: Applied Optics, Vol. 40, No. 22, 01.08.2001, p. 3762-3783.

Research output: Contribution to journalArticle

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T1 - X–ray telescope onboard astro–E. II. Ground–based x–ray characterization

AU - Shibata, Ryo

AU - Ishida, Manabu

AU - Kunieda, Hideyo

AU - Endo, Takao

AU - Honda, Hirohiko

AU - Misaki, Kazutami

AU - Ishida, Jun’ichi

AU - Imamura, Kohsuke

AU - Hidaka, Yasuhiro

AU - Maeda, Masamichi

AU - Tawara, Yuzuru

AU - Ogasaka, Yasushi

AU - Furuzawa, Akihiro

AU - Watanabe, Manabu

AU - Terashima, Yuichi

AU - Yoshioka, Tsutomu

AU - Okajima, Takashi

AU - Yamashita, Koujun

AU - Serlemitsos, Peter J.

AU - Soong, Yang

AU - Chan, Kai Wing

PY - 2001/8/1

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N2 - X-ray characterization measurements of the x-ray telescope (XRT) onboard the Astro–E satellite were carried out at the Institute of Space and Astronautical Science (Japan) x–ray beam facility by means of a raster scan with a narrow x–ray pencil beam. The on–axis half–power diameter (HPD) was evaluated to be 1.8’–2.2’, irrespective of the x–ray energy. The on–axis effective areas of the XRTs for x–ray imaging spectrometers (XISs) were approximately 440, 320, 240, and 170 cm2 at energies of 1.49, 4.51, 8.04, and 9.44 keV, respectively. Those of the x–ray spectrometer (XRS) were larger by 5–10%. The replication method introduced for reflector production significantly improved the imaging capability of the Advanced Satellite for Cosmology and Astrophyics (ASCA) XRT, whose HPD is -3.6’. The increase in the effective area by a factor of 1.5–2.5, depending upon the x–ray energy, compared with that of the ASCA, was brought about by mechanical scale up and longer focal lengths. The off–axis HPDs were almost the same as those obtained on the optical axis. The field of view is defined as the off–axis angle at which the effective area becomes half of the on–axis value. The diameter of the field of view was - 19’ at 1.49 keV, decreasing with increasing x–ray energy, and became -13’ at 9.44 keV. The intensity of stray light and the distribution of this kind of light on the focal plane were measured at the large off–axis angles 30’ and 60’. In the entire XIS field of view (25.4 mm × 25.4 mm), the intensity of the stray light caused by a pointlike x–ray source became at most 1% of the same pointlike source that was on the optical axis.

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Shibata R, Ishida M, Kunieda H, Endo T, Honda H, Misaki K et al. X–ray telescope onboard astro–E. II. Ground–based x–ray characterization. Applied Optics. 2001 Aug 1;40(22):3762-3783. https://doi.org/10.1364/AO.40.003762