Fabrication, performance, and figure metrology of epoxy-replicated aluminum foils for hard x-ray focusing multilayer-coated segmented conical optics

被引：12

作者：

Jimenez-Garate, MA

Craig, WW

Hailey, CJ

Christensen, FE

Hussain, A

机构：

[1] Columbia Univ, Astrophys Lab, New York, NY 10027 USA

[2] Danish Space Res Inst, Copenhagen, Denmark

[3] Univ Calif Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

来源：

OPTICAL ENGINEERING | 2000年 / 39卷 / 11期

关键词：

x-rays; metrology; mirrors; grazing incidence; space optics;

D O I：

10.1117/1.1315572

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We fabricated x-ray mirrors for hard x-ray (greater than or equal to 10 keV) telescopes using multilayer coatings and an improved epoxy-replicated aluminum foil (ERAF) nonvacuum technology. The ERAF optics have similar to1 arcmin axial figure half-power diameter (HPD) and passed environmental testing. Reflectivity measurements at 8 keV on ERAFs with and without multilayer coatings show a 4.4 to 4.8 A root mean square (rms) microroughness for correlation lengths less than or equal to 15 mum. To reduce the dominant contribution of mirror assembly and large-scale distortion in the overall telescope HPD, we designed a figure metrology system and a new mounting technique. We describe a cylindrical metrology system built for fast axial and roundness figure measurement of hard x-ray conical optics. These developments lower cost and improve the optics performance of the HEFT (high-energy focusing telescope) and Constellation-X missions. (C) 2000 society of Photo-Optical Instrumentation Engineers. [S0091-3286(00)01611-1].

引用

页码：2982 / 2994

页数：13

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