Thin-foil multilayer-supermirror hard x-ray telescopes for InFOCμS/SUMIT balloon experiments and NeXT satellite program
Thin-foil multilayer-supermirror hard x-ray telescopes for InFOCμS/SUMIT balloon experiments and NeXT satellite program
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DOI:
10.1117/12.733694
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发表时间:
2007-09
期刊:
影响因子:
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通讯作者:
Y. Ogasaka;K. Tamura;T. Miyazawa;Y. Fukaya;Tomonaga Iwahara;Naoki Sasaki;A. Furuzawa;Y. Haba;Yasufumi Kanou;Daisuki Ueno;H. Kunieda;K. Yamashita;R. Shibata;T. Okajima;J. Tueller;P. Serlemitsos;Y. Soong;Kai-wing Chan;E. Miyata;H. Tsunemi;K. Uesugi;Yoshio Suzuki;Y. Namba
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文献类型:
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作者:
Y. Ogasaka;K. Tamura;T. Miyazawa;Y. Fukaya;Tomonaga Iwahara;Naoki Sasaki;A. Furuzawa;Y. Haba;Yasufumi Kanou;Daisuki Ueno;H. Kunieda;K. Yamashita;R. Shibata;T. Okajima;J. Tueller;P. Serlemitsos;Y. Soong;Kai-wing Chan;E. Miyata;H. Tsunemi;K. Uesugi;Yoshio Suzuki;Y. Namba
Hard X-ray telescopes using depth-graded multilayer is a key technology for future satellite programs. Developments are underway by many groups, and balloon experiments have also been carried out. We have developed light-weight hard X-ray telescopes using Pt/C multilayer and high-throughput thin-foil optics. They have been aboard on InFOCμs and SUMIT balloon flights. As a next development efforts, especially for Japan's NeXT satellite program, we focus on improvement of image quality. Among three equally-contributing error factors (figure error, positioning error and off-roundness), figure errors and off-roundness have been reduced significantly, by screening of replication mandrels and active and iterative tuning of support bars. Further studies are in progress, such as suer-polished metal mandrels and better positioning of reflector edges, to meet the baseline requirement of the NeXT mission.