Development status of adjustable grazing incidence optics for 0.5 arcsecond X-ray imaging

被引：17

作者：

Reid, Paul B. ^{[1
]}

Aldcroft, Thomas L. ^{[1
]}

Allured, Ryan ^{[1
]}

Cotroneo, Vincenzo ^{[1
]}

Johnson-Wilke, Raegan L. ^{[2
]}

Marquez, Vanessa ^{[1
]}

McMuldroch, Stuart ^{[1
]}

O'Dell, Stephen L. ^{[3
]}

Ramsey, Brian D. ^{[3
]}

Schwartz, Daniel A. ^{[1
]}

Trolier-McKinstry, Susan ^{[2
]}

Vikhlinin, Alexey ^{[1
]}

Wilke, Rudeger H. T. ^{[2
]}

Zhao, Rui ^{[2
]}

机构：

[1] Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA

[2] Penn State Univ, University Pk, PA 16802 USA

[3] NASA Marshall Space Flight Ctr, Astrophys Off ZP12, Huntsville, AL 35812 USA

来源：

ADAPTIVE X-RAY OPTICS III | 2014年 / 9208卷

关键词：

x-ray optics; adjustable optics; active optics; piezoelectric; deformable mirrors; SMART-X; high resolution; lightweight optics;

D O I：

10.1117/12.2063305

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We describe progress in the development of adjustable grazing incidence X-ray optics for 0.5 arcsec resolution cosmic X-ray imaging. To date, no optics technology is available to blend high resolution imaging like the Chandra X-ray Observatory, with square meter collecting area. Our approach to achieve these goals simultaneously is to directly deposit thin film piezoelectric actuators on the back surface of thin, lightweight Wolter-I or Wolter-Schwarschild mirror segments. The actuators are used to correct mirror figure errors due to fabrication, mounting and alignment, using calibration and a one-time figure adjustment on the ground. If necessary, it will also be possible to correct for residual gravity release and thermal effects on-orbit. In this paper we discuss our most recent results measuring influence functions of the piezoelectric actuators using a Shack-Hartmann wavefront sensor. We describe accelerated and real-time lifetime testing of the piezoelectric material, and we also discuss changes to, and recent results of, our simulations of mirror correction.

引用

页数：9

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