Strain gauging for on-orbit figure monitoring of adjustable X-ray optics: systems analyses

Paul B. Reid; Vladimir Kradinov; Mark D. Freeman; Nathan L. Bishop; Casey DeRoo; Thomas N. Jackson; Vanessa Marquez; Mohit M. Tendulkar; Quyen Tran; Susan Trolier-McKinstry

doi:10.1117/12.2595160

1 August 2021 Strain gauging for on-orbit figure monitoring of adjustable X-ray optics: systems analyses

Paul B. Reid, Vladimir Kradinov, Mark D. Freeman, Nathan L. Bishop, Casey DeRoo, Thomas N. Jackson, Vanessa Marquez, Mohit M. Tendulkar, Quyen Tran, Susan Trolier-McKinstry

Author Affiliations +

Proceedings Volume 11822, Optics for EUV, X-Ray, and Gamma-Ray Astronomy X; 1182214 (2021) https://doi.org/10.1117/12.2595160
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

Adjustable X-ray optics represent a potential mirror technology for the NASA Lynx X-ray observatory mission concept. Adjustable optics employ an integrated micron-thick piezoelectric film deposited on the convex side of silicon Wolter-type mirror segments. Discrete, independently addressable electrodes on the convex surface form individual actuators; the applied voltages are used to correct the shape of the mirror segments for figure errors resulting from a change in thermal environment, epoxy creep, or failure of an epoxy bond. On-orbit correction requires a metrology system to provide real-time feedback of mirror figure. We are examining the use of deposited semiconductor strain gauges to monitor mirror mechanical strains and surface temperatures. To establish requirements for monitoring we modeled a variety of thermal and mechanical disturbances to a mirror segment such as might occur on-orbit or from launch. Models are described and resulting requirements and performance discussed.

Conference Presentation

Citation Download Citation

Paul B. Reid, Vladimir Kradinov, Mark D. Freeman, Nathan L. Bishop, Casey DeRoo, Thomas N. Jackson, Vanessa Marquez, Mohit M. Tendulkar, Quyen Tran, and Susan Trolier-McKinstry "Strain gauging for on-orbit figure monitoring of adjustable X-ray optics: systems analyses", Proc. SPIE 11822, Optics for EUV, X-Ray, and Gamma-Ray Astronomy X, 1182214 (1 August 2021); https://doi.org/10.1117/12.2595160

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