Abstract
Hard X-ray focusing observation is important to reveal non-thermal emission mechanism and origin in active galaxies and clusters of galaxies. We have carried out the hard X-ray observation throughout the InFOCμS program, which is an international balloon-borne experiment in collaboration with NASA/GSFC and Nagoya University. The telescope is conical approximation of Wolter-I optics with 8 m focal length and 40 cm diameter. It consists of 255 nested thin (0.17 mm thickness) reflectors with incidence angles of 0.10° to 0.36°. Reflectors are coated with depth-graded platinum-carbon (Pt/C) multilayers, so-called supermirrors, with periodic length of 2.6 to 13 nm and bi-layer number of 28 to 79, depending on incidence angles. We are now continuously fabricating advanced next hard X-ray telescope for the second InFOCμS flight in 2004. Compared with the first telescope, the following improvements have been made on the second one. Supermirror reflectors have wider sensitivity in energy band of 20 - 60 keV adopting optimum supermirror design for balloon observation, and smaller interfacial roughness owing to complete replication technique. For upgrading of the image quality, we then adopted stiffer reflector substrate, selected replication mandrel with better shape, and the modified telescope housing with higher alignment accuracy for reflectors. The performance of the new hard X-ray telescope was measured in X-ray beamline facility in ISAS/JAXA and synchrotron radiation facility SPring-8. The effective area and image quality are obtained to be 45 cm 2 at 30 keV and 23 cm2 at 40 keV, and 2.5 arcmin in half power diameter, respectively. In this paper we report our development of the upgraded hard X-ray telescope for the second balloon flight experiment.
| Original language | English |
|---|---|
| Pages (from-to) | 313-324 |
| Number of pages | 12 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 5488 |
| Issue number | PART 1 |
| DOIs | |
| Publication status | Published - 20-12-2004 |
| Externally published | Yes |
| Event | UV and Gamma-Ray Space Telescope Systems - Glasgow, United Kingdom Duration: 21-06-2004 → 24-06-2004 |
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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
}
Upgraded hard X-ray telescope with multilayer supermirror for the InFOCμS balloon experiment. / Shibata, Ryo; Ogasaka, Yasushi; Tamura, Keisuke; Furuzawa, Akihiro; Tawara, Yuzuru; Yamashita, Koujun; Takahashi, Rika; Sakashita, Machiko; Miyazawa, Takuya; Shimoda, Kenta; Sakai, Chiaki; Yamada, Nobuaki; Naitou, Masataka; Futamura, Taku; Serlemitsos, Peter J.; Soong, Yang; Chan, Kai Wing; Okajima, Takashi; Tueller, Jack; Krimm, Hans A.; Barthlemy, Scott D.; Owens, Scott M.; Kunieda, Hideyo; Namba, Yoshiharu.
In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 5488, No. PART 1, 20.12.2004, p. 313-324.Research output: Contribution to journal › Conference article
TY - JOUR
T1 - Upgraded hard X-ray telescope with multilayer supermirror for the InFOCμS balloon experiment
AU - Shibata, Ryo
AU - Ogasaka, Yasushi
AU - Tamura, Keisuke
AU - Furuzawa, Akihiro
AU - Tawara, Yuzuru
AU - Yamashita, Koujun
AU - Takahashi, Rika
AU - Sakashita, Machiko
AU - Miyazawa, Takuya
AU - Shimoda, Kenta
AU - Sakai, Chiaki
AU - Yamada, Nobuaki
AU - Naitou, Masataka
AU - Futamura, Taku
AU - Serlemitsos, Peter J.
AU - Soong, Yang
AU - Chan, Kai Wing
AU - Okajima, Takashi
AU - Tueller, Jack
AU - Krimm, Hans A.
AU - Barthlemy, Scott D.
AU - Owens, Scott M.
AU - Kunieda, Hideyo
AU - Namba, Yoshiharu
PY - 2004/12/20
Y1 - 2004/12/20
N2 - Hard X-ray focusing observation is important to reveal non-thermal emission mechanism and origin in active galaxies and clusters of galaxies. We have carried out the hard X-ray observation throughout the InFOCμS program, which is an international balloon-borne experiment in collaboration with NASA/GSFC and Nagoya University. The telescope is conical approximation of Wolter-I optics with 8 m focal length and 40 cm diameter. It consists of 255 nested thin (0.17 mm thickness) reflectors with incidence angles of 0.10° to 0.36°. Reflectors are coated with depth-graded platinum-carbon (Pt/C) multilayers, so-called supermirrors, with periodic length of 2.6 to 13 nm and bi-layer number of 28 to 79, depending on incidence angles. We are now continuously fabricating advanced next hard X-ray telescope for the second InFOCμS flight in 2004. Compared with the first telescope, the following improvements have been made on the second one. Supermirror reflectors have wider sensitivity in energy band of 20 - 60 keV adopting optimum supermirror design for balloon observation, and smaller interfacial roughness owing to complete replication technique. For upgrading of the image quality, we then adopted stiffer reflector substrate, selected replication mandrel with better shape, and the modified telescope housing with higher alignment accuracy for reflectors. The performance of the new hard X-ray telescope was measured in X-ray beamline facility in ISAS/JAXA and synchrotron radiation facility SPring-8. The effective area and image quality are obtained to be 45 cm 2 at 30 keV and 23 cm2 at 40 keV, and 2.5 arcmin in half power diameter, respectively. In this paper we report our development of the upgraded hard X-ray telescope for the second balloon flight experiment.
AB - Hard X-ray focusing observation is important to reveal non-thermal emission mechanism and origin in active galaxies and clusters of galaxies. We have carried out the hard X-ray observation throughout the InFOCμS program, which is an international balloon-borne experiment in collaboration with NASA/GSFC and Nagoya University. The telescope is conical approximation of Wolter-I optics with 8 m focal length and 40 cm diameter. It consists of 255 nested thin (0.17 mm thickness) reflectors with incidence angles of 0.10° to 0.36°. Reflectors are coated with depth-graded platinum-carbon (Pt/C) multilayers, so-called supermirrors, with periodic length of 2.6 to 13 nm and bi-layer number of 28 to 79, depending on incidence angles. We are now continuously fabricating advanced next hard X-ray telescope for the second InFOCμS flight in 2004. Compared with the first telescope, the following improvements have been made on the second one. Supermirror reflectors have wider sensitivity in energy band of 20 - 60 keV adopting optimum supermirror design for balloon observation, and smaller interfacial roughness owing to complete replication technique. For upgrading of the image quality, we then adopted stiffer reflector substrate, selected replication mandrel with better shape, and the modified telescope housing with higher alignment accuracy for reflectors. The performance of the new hard X-ray telescope was measured in X-ray beamline facility in ISAS/JAXA and synchrotron radiation facility SPring-8. The effective area and image quality are obtained to be 45 cm 2 at 30 keV and 23 cm2 at 40 keV, and 2.5 arcmin in half power diameter, respectively. In this paper we report our development of the upgraded hard X-ray telescope for the second balloon flight experiment.
UR - http://www.scopus.com/inward/record.url?scp=10044236763&partnerID=8YFLogxK
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U2 - 10.1117/12.551462
DO - 10.1117/12.551462
M3 - Conference article
AN - SCOPUS:10044236763
VL - 5488
SP - 313
EP - 324
JO - Proceedings of SPIE - The International Society for Optical Engineering
JF - Proceedings of SPIE - The International Society for Optical Engineering
SN - 0277-786X
IS - PART 1
ER -