Supermirror hard-x-ray telescope.
Supermirror hard-x-ray telescope.
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DOI：
10.1364/ao.37.008067
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发表时间：
1998-12
期刊：
影响因子：
1.9
通讯作者：
K. Yamashita;P. Serlemitsos;J. Tueller;S. Barthelmy;L. Bartlett;K. W. Chan;A. Furuzawa;N. Gehrels;K. Haga;H. Kunieda;P. Kurczynski;G. Lodha;N. Nakajo;N. Nakamura;Y. Namba;Y. Ogasaka;T. Okajima;D. Palmer;A. Parsons;Y. Soong;C. Stahl;H. Takata;K. Tamura;Y. Tawara;B. Teegarden
中科院分区：
文献类型：
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作者：
K. Yamashita;P. Serlemitsos;J. Tueller;S. Barthelmy;L. Bartlett;K. W. Chan;A. Furuzawa;N. Gehrels;K. Haga;H. Kunieda;P. Kurczynski;G. Lodha;N. Nakajo;N. Nakamura;Y. Namba;Y. Ogasaka;T. Okajima;D. Palmer;A. Parsons;Y. Soong;C. Stahl;H. Takata;K. Tamura;Y. Tawara;B. Teegarden
掠射X射线望远镜的实际使用证明硬X射线成像硬40千电子伏的深度梯度的d-间隔多层，所谓的超级反射镜。设计了三块共26层的铂碳多层膜，其周期长度d为3-5 nm，在掠射角为0.3 °时，可提高能量范围为24 - 36 keV的反射率。多层膜的沉积薄复制箔镜磁控直流溅射系统。在此能量范围内，测得的反射率为25%-30%;因此沉积的20个镜壳被组装成紧密嵌套的掠入射望远镜。聚焦硬X射线图像观察与新开发的位置敏感的CdZnTe固态探测器。该望远镜的角分辨率被发现是2.4弧分的半功率直径。
The practical use of a grazing x-ray telescope is demonstrated for hard-x-ray imaging as hard as 40 keV by means of a depth-graded d-spacing multilayer, a so-called supermirror. Platinum-carbon multilayers of 26 layer pairs in three blocks with a different periodic length d of 3-5 nm were designed to enhance the reflectivity in the energy range from 24 to 36 keV at a grazing angle of 0.3 deg. The multilayers were deposited on thin-replica-foil mirrors by a magnetron dc sputtering system. The reflectivity was measured to be 25%-30% in this energy range; 20 mirror shells thus deposited were assembled into the tightly nested grazing-incidence telescope. The focused hard-x-ray image was observed with a newly developed position-sensitive CdZnTe solid-state detector. The angular resolution of this telescope was found to be 2.4 arc min in the half-power diameter.