Abstract

The x-ray properties of multinested thin-foil mirror x-ray telescopes (XRT’s) on board ASCA, the Advanced Satellite for Cosmology and Astrophysics, were fully evaluated with an x-ray pencil beam.Scanning over the telescope aperture of 35 cm in diameter with an x-ray pencil beam, we found the effective area of a set of XRT’s to be 325, 200, and 113 cm2 at energies of 1.5, 4.5, and 8.0 keV, respectively. We derive the point-spread functions (PSF’s) of the XRT’s by measuring the image profile at the focal plane with an x-ray CCD. The PSF is found to exhibit a sharp core concentrated within 30 arcsec and a broad wing extended to 3 arcmin in half-power diameter. We also evaluate the contribution of stray light, which is caused by the single reflection of x rays by primary or secondary mirrors and by the backside reflection of the mirrors. To obtain the characteristics of the XRT in the energy region of 0.5–10.0 keV, incorporated with the measurements at discrete energies, we develop a ray-tracing method with the telescope design parameter, the PSF, and optical constants. In particular, we obtain the optical constants around the gold-atom M shell (Au–M) absorption-edge energies by measuring the reflectivity of our mirror sample, with monochromatized x-rays in the energy range of 2.0–3.5 keV from synchrotron radiation. Taking into account the PSF’s and optical constants, we find that our ray-tracing program can reproduce all these XRT performances.

© 1995 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
X-ray telescope onboard Astro-E: optical design and fabrication of thin foil mirrors

Hideyo Kunieda, Manabu Ishida, Takao Endo, Yasuhiro Hidaka, Hirohiko Honda, Kohsuke Imamura, Jun’ichi Ishida, Masamichi Maeda, Kazutami Misaki, Ryo Shibata, Akihiro Furuzawa, Kazutoshi Haga, Yasushi Ogasaka, Takashi Okajima, Yuzuru Tawara, Yuichi Terashima, Manabu Watanabe, Koujun Yamashita, Tsutomu Yoshioka, Peter J. Serlemitsos, Yang Soong, and Kai-Wing Chan
Appl. Opt. 40(4) 553-564 (2001)

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, and Kai-Wing Chan
Appl. Opt. 40(22) 3762-3783 (2001)

X-ray telescope onboard Astro-E. III. Guidelines to performance improvements and optimization of the ray-tracing simulator

Kazutami Misaki, Yasuhiro Hidaka, Manabu Ishida, Ryo Shibata, Akihiro Furuzawa, Yoshito Haba, Kei Itoh, Hideyuki Mori, and Hideyo Kunieda
Appl. Opt. 44(6) 916-940 (2005)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (13)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (5)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription