Optical metrology of an adjustable x-ray mirror prototype

Casey T. DeRoo; Paul Reid; Vanessa Marquez; Vladimir Kradinov; Susan Trolier-McKinstry; Nathan Bishop; Thomas N. Jackson; Mohit Tendulkar; Quyen Tran

doi:10.1117/12.2594726

5 August 2021 Optical metrology of an adjustable x-ray mirror prototype

Casey T. DeRoo, Paul Reid, Vanessa Marquez, Vladimir Kradinov, Susan Trolier-McKinstry, Nathan Bishop, Thomas N. Jackson, Mohit Tendulkar, Quyen Tran

Author Affiliations +

Proceedings Volume 11822, Optics for EUV, X-Ray, and Gamma-Ray Astronomy X; 118220Z (2021) https://doi.org/10.1117/12.2594726
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

Exquisite angular resolution (< 0.5 arcsec) and high effective area (≥ 2 m^2 @ 1 keV) are requirements for a next-generation X-ray observatory capable of tackling outstanding problems in high energy astrophysics, including understanding how black holes grow over cosmic time and how hot baryonic material is distributed on the largest scales. However, realizing a telescope with this performance is challenging, as the thin optics required are susceptible to fabrication errors, thin film stress, and mounting deformations. One potential method of addressing these errors to fabricate adjustable X-ray optics – mirrors with actuators capable of correcting the optic’s figure following mounting. In this work, we present interferometric measurements of an adjustable X-ray optics prototype with lead titanate zirconate (PZT) actuators. We detail the realized actuator performance and correctability of the mirror prototype, and discuss the implications for the next-generation of adjustable mirrors.

Conference Presentation

Citation Download Citation

Casey T. DeRoo, Paul Reid, Vanessa Marquez, Vladimir Kradinov, Susan Trolier-McKinstry, Nathan Bishop, Thomas N. Jackson, Mohit Tendulkar, and Quyen Tran "Optical metrology of an adjustable x-ray mirror prototype", Proc. SPIE 11822, Optics for EUV, X-Ray, and Gamma-Ray Astronomy X, 118220Z (5 August 2021); https://doi.org/10.1117/12.2594726

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