1. Adaptive shape control of wavefront-preserving X-ray mirrors with active cooling and heating.
- Author
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Cocco, Daniele, Hardin, Corey, Morton, Daniel, Lee, Lance, Ng, May Ling, Zhang, Lin, Assoufid, Lahsen, Grizolli, Walan, Shi, Xianbo, Walko, Donald A, Cutler, Grant, Goldberg, Kenneth A, Wojdyla, Antoine, Idir, Mourad, Huang, Lei, and Dovillaire, Guillaume
- Subjects
Engineering ,Electronics ,Sensors and Digital Hardware ,Physical Sciences ,Optical Physics ,Electrical and Electronic Engineering ,Communications Technologies ,Optics ,Communications engineering ,Electronics ,sensors and digital hardware ,Atomic ,molecular and optical physics - Abstract
This article describes the development and testing of a novel, water-cooled, active optic mirror system (called "REAL: Resistive Element Adjustable Length") that combines cooling with applied auxiliary heating, tailored to the spatial distribution of the thermal load generated by the incident beam. This technique is theoretically capable of sub-nanometer surface figure error control even at high power density. Tests conducted in an optical metrology laboratory and at synchrotron X-ray beamlines showed the ability to maintain the mirror profile to the level needed for the next generation storage rings and FEL mirrors.
- Published
- 2020