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In situ metrology for adaptive x-ray optics with an absolute distance measuring sensor array

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/1.5060954· OSTI ID:1706602
 [1];  [1];  [2];  [2]
  1. Zygo Corporation, Middlefield, CT (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchrotron Light Source II (NSLS-II)

Adaptive x-ray mirrors are emerging as one of the primary solutions for meeting the performance needs of the next generation of x-ray light sources. Currently, these mirrors operate open loop with intermittent feedback from invasive sensors that measure the beam quality. This paper outlines a novel design for real-time in situ metrology of the shape of these mirrors using an array of interferometric sensors that does not interrupt the x-ray beam. We describe a proof-of-principle demonstration which shows sub-nm agreement over a range of mirror deflection magnitudes and shapes as compared to simultaneous measurements by using a large-aperture Fizeau interferometer.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States). National Synchrotron Light Source II (NSLS-II)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012704
OSTI ID:
1706602
Report Number(s):
BNL--220575-2020-JAAM
Journal Information:
Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 2 Vol. 90; ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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journal May 2010
A beam-shaping system for TIMEX beamline
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Cited By (1)

The 6th International Workshop on X-ray Optics and Metrology—IWXM 2018 journal February 2019

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