skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

This content will become publicly available on February 8, 2020

Title: Influence of optics vibration on synchrotron beam coherence

Abstract

Vibration of optics is one of the major limiting factors of the performance of state-of-the-art beamlines at low-emittance synchrotron facilities. In this work, we present a theoretical model with experimental data describing vibration-induced effects on X-ray beam coherence. Owing to the Van Cittert-Zernike theorem, the coherence function of an X-ray beam perturbed by optics vibrations can be adequately characterized by modeling the spatial profile of the beam effective source. The measurements were carried out by using grating interferometry and a refractive lens with controlled vibration as a test optics. The experimental results confirm the model prediction and reveal the dependency of the measured beam spatial coherence on the acquisition time. The proposed method can be used to identify the eigenfrequency of the optical system as well as to optimize beamline operation and experimental conditions for coherence-related techniques.

Authors:
ORCiD logo [1]; ORCiD logo [1];  [1]
  1. Argonne National Lab. (ANL), Lemont, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1500005
Alternate Identifier(s):
OSTI ID: 1493659
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Optics Letters
Additional Journal Information:
Journal Volume: 44; Journal Issue: 4; Journal ID: ISSN 0146-9592
Publisher:
Optical Society of America (OSA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 47 OTHER INSTRUMENTATION

Citation Formats

Grizolli, Walan, Shi, Xianbo, and Assoufid, Lahsen. Influence of optics vibration on synchrotron beam coherence. United States: N. p., 2019. Web. doi:10.1364/OL.44.000899.
Grizolli, Walan, Shi, Xianbo, & Assoufid, Lahsen. Influence of optics vibration on synchrotron beam coherence. United States. doi:10.1364/OL.44.000899.
Grizolli, Walan, Shi, Xianbo, and Assoufid, Lahsen. Fri . "Influence of optics vibration on synchrotron beam coherence". United States. doi:10.1364/OL.44.000899.
@article{osti_1500005,
title = {Influence of optics vibration on synchrotron beam coherence},
author = {Grizolli, Walan and Shi, Xianbo and Assoufid, Lahsen},
abstractNote = {Vibration of optics is one of the major limiting factors of the performance of state-of-the-art beamlines at low-emittance synchrotron facilities. In this work, we present a theoretical model with experimental data describing vibration-induced effects on X-ray beam coherence. Owing to the Van Cittert-Zernike theorem, the coherence function of an X-ray beam perturbed by optics vibrations can be adequately characterized by modeling the spatial profile of the beam effective source. The measurements were carried out by using grating interferometry and a refractive lens with controlled vibration as a test optics. The experimental results confirm the model prediction and reveal the dependency of the measured beam spatial coherence on the acquisition time. The proposed method can be used to identify the eigenfrequency of the optical system as well as to optimize beamline operation and experimental conditions for coherence-related techniques.},
doi = {10.1364/OL.44.000899},
journal = {Optics Letters},
number = 4,
volume = 44,
place = {United States},
year = {2019},
month = {2}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on February 8, 2020
Publisher's Version of Record

Save / Share: