Adjustable grazing incidence x-ray optics: measurement of actuator influence functions and comparison with modeling

Vincenzo Cotroneo; William N. Davis; Paul B. Reid; Daniel A. Schwartz; Susan Trolier-McKinstry; Rudeger H. T. Wilke

doi:10.1117/12.895475

6 October 2011 Adjustable grazing incidence x-ray optics: measurement of actuator influence functions and comparison with modeling

Vincenzo Cotroneo, William N. Davis, Paul B. Reid, Daniel A. Schwartz, Susan Trolier-McKinstry, Rudeger H. T. Wilke

Author Affiliations +

Proceedings Volume 8147, Optics for EUV, X-Ray, and Gamma-Ray Astronomy V; 81471R (2011) https://doi.org/10.1117/12.895475
Event: SPIE Optical Engineering + Applications, 2011, San Diego, California, United States

Abstract

The present generation of X-ray telescopes emphasizes either high image quality (e.g. Chandra with sub-arc second resolution) or large effective area (e.g. XMM-Newton), while future observatories under consideration (e.g. Athena, AXSIO) aim to greatly enhance the effective area, while maintaining moderate (~10 arc-seconds) image quality. To go beyond the limits of present and planned missions, the use of thin adjustable optics for the control of low-order figure error is needed to obtain the high image quality of precisely figured mirrors along with the large effective area of thin mirrors. The adjustable mirror prototypes under study at Smithsonian Astrophysical Observatory are based on two different principles and designs: 1) thin film lead-zirconate-titanate (PZT) piezoelectric actuators directly deposited on the mirror back surface, with the strain direction parallel to the glass surface (for sub-arc-second angular resolution and large effective area), and 2) conventional leadmagnesium- niobate (PMN) electrostrictive actuators with their strain direction perpendicular to the mirror surface (for 3-5 arc second resolution and moderate effective area). We have built and operated flat test mirrors of these adjustable optics. We present the comparison between theoretical influence functions as obtained by finite element analysis and the measured influence functions obtained from the two test configurations.

Citation Download Citation

Vincenzo Cotroneo, William N. Davis, Paul B. Reid, Daniel A. Schwartz, Susan Trolier-McKinstry, and Rudeger H. T. Wilke "Adjustable grazing incidence x-ray optics: measurement of actuator influence functions and comparison with modeling", Proc. SPIE 8147, Optics for EUV, X-Ray, and Gamma-Ray Astronomy V, 81471R (6 October 2011); https://doi.org/10.1117/12.895475

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available