Record Details

Title:
Calibration and Optimization of An X-Ray Bendable Mirror Using Displacement-Measuring Sensors
Topic:
Abstract:
We propose a method to control and to adjust in a closed-loop a bendable x-ray mirror using displacement-measuring devices. For this purpose, the usage of capacitive and interferometric sensors is investigated and compared. We installed the sensors in a bender setup and used them to continuously measure the position and shape of the mirror in the lab. The sensors are vacuum-compatible such that the same concept can also be applied in final conditions. The measurement is used to keep the calibration of the system and to create a closed-loop control compensating for external influences: in a demonstration measurement, using a 950 mm long bendable mirror, the mirror sagitta is kept stable inside a range of 10 nm Peak-To-Valley (P-V).
Imprint:
Washington, DC, Soc., 2016
Journal Information:
Opt. Express, Vol. 24, no. 15, p. 17292 - (2016)
External related publications:
Language(s):
English


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 Record created 2016-10-11, last modified 2017-02-09

Published on 2016-07-21. Available in OpenAccess from 2017-07-21.:
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