TY - JOUR
T1 - X-ray telescope onboard Astro-E
T2 - Optical design and fabrication of thin foil mirrors
AU - Kunieda, Hideyo
AU - Ishida, Manabu
AU - Endo, Takao
AU - Hidaka, Yasuhiro
AU - Honda, Hirohiko
AU - Imamura, Kohsuke
AU - Ishida, Jun’ichi
AU - Maeda, Masamichi
AU - Misaki, Kazutami
AU - Shibata, Ryo
AU - Furuzawa, Akihiro
AU - Haga, Kazutoshi
AU - Ogasaka, Yasushi
AU - Okajima, Takashi
AU - Tawara, Yuzuru
AU - Terashima, Yuichi
AU - Watanabe, Manabu
AU - Yamashita, Koujun
AU - Yoshioka, Tsutomu
AU - Serlemitsos, Peter J.
AU - Soong, Yang
AU - Chan, Kai Wing
PY - 2001/2/1
Y1 - 2001/2/1
N2 - X-ray telescopes (XRT’s) of nested thin foil mirrors are developed for Astro-E, the fifth Japanese x-ray astronomy satellite. Although the launch was not successful, the design concept, fabrication, and alignment procedure are summarized. The main purpose of the Astro-E XRT is to collect hard x rays up to 10 keV with high efficiency and to provide medium spatial resolution in limited weight and volume. Compared with the previous mission, Advanced Satellite for Cosmology and Astrophysics (ASCA), a slightly longer focal length of 4.5–4.75 m and a larger diameter of 40 cm yields an effective area of 1750 cm2 at 8 keV with five telescopes. The image quality is also improved to 2-arc min half-power diameter by introduction of a replication process. Platinum is used instead of gold for the reflectors of one of the five telescopes to enhance the high-energy response. The fabrication and alignment procedure is also summarized. Several methods for improvement are suggested for the reflight Astro-E II mission and for other future missions. Preflight calibration results will be described in a forthcoming second paper, and a detailed study of images will be presented in a third paper.
AB - X-ray telescopes (XRT’s) of nested thin foil mirrors are developed for Astro-E, the fifth Japanese x-ray astronomy satellite. Although the launch was not successful, the design concept, fabrication, and alignment procedure are summarized. The main purpose of the Astro-E XRT is to collect hard x rays up to 10 keV with high efficiency and to provide medium spatial resolution in limited weight and volume. Compared with the previous mission, Advanced Satellite for Cosmology and Astrophysics (ASCA), a slightly longer focal length of 4.5–4.75 m and a larger diameter of 40 cm yields an effective area of 1750 cm2 at 8 keV with five telescopes. The image quality is also improved to 2-arc min half-power diameter by introduction of a replication process. Platinum is used instead of gold for the reflectors of one of the five telescopes to enhance the high-energy response. The fabrication and alignment procedure is also summarized. Several methods for improvement are suggested for the reflight Astro-E II mission and for other future missions. Preflight calibration results will be described in a forthcoming second paper, and a detailed study of images will be presented in a third paper.
UR - http://www.scopus.com/inward/record.url?scp=0001316377&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0001316377&partnerID=8YFLogxK
U2 - 10.1364/AO.40.000553
DO - 10.1364/AO.40.000553
M3 - Article
C2 - 18357031
AN - SCOPUS:0001316377
SN - 1559-128X
VL - 40
SP - 553
EP - 564
JO - Applied Optics
JF - Applied Optics
IS - 4
ER -