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Title: A real-time phase-space beam emittance monitoring system

Abstract

An electron beam position and angle monitoring system, ps-BPM, has been shown to be able to measure the electron source position and angle at a single location in a beamline at a synchrotron source. This system uses a monochromator to prepare a photon beam whose energy is at that of the K-edge of an absorber filter. The divergence of the beam from the source gives an energy range that will encompass theK-edge of the filter. A measurement of the centre of the monochromatic beam and the K-edge location through the absorber filter gives the position and angle of the electron source. Here, it is shown that this system is also capable of measuring the source size and divergence at the same time. This capability is validated by measurement as the beam size in the storage ring was changed and by ray-tracing simulations. The system operates by measuring the photon beam spatial distribution as well as aK-edge filtered beam distribution. These additional measurements result in the ability to also determine the electron source size and divergence.

Authors:
ORCiD logo [1]; ORCiD logo [2];  [3];  [3]
  1. Univ. of Saskatchewan, Saskatoon, SK (Canada). Physics and Engineering Physics
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
  3. Canadian Light Sources, Inc., Saskatoon, SK (Canada)
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); Natural Sciences and Engineering Research Council of Canada (NSERC); Canadian Institutes of Health Research (CIHR)
OSTI Identifier:
1532184
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Synchrotron Radiation (Online)
Additional Journal Information:
Journal Name: Journal of Synchrotron Radiation (Online); Journal Volume: 26; Journal Issue: 4; Journal ID: ISSN 1600-5775
Publisher:
International Union of Crystallography
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; X-ray diffraction; beam emittance monitor; diagnostics and feedback; phase space

Citation Formats

Samadi, Nazanin, Shi, Xianbo, Dallin, Les, and Chapman, Dean. A real-time phase-space beam emittance monitoring system. United States: N. p., 2019. Web. doi:10.1107/S1600577519005423.
Samadi, Nazanin, Shi, Xianbo, Dallin, Les, & Chapman, Dean. A real-time phase-space beam emittance monitoring system. United States. doi:10.1107/S1600577519005423.
Samadi, Nazanin, Shi, Xianbo, Dallin, Les, and Chapman, Dean. Tue . "A real-time phase-space beam emittance monitoring system". United States. doi:10.1107/S1600577519005423. https://www.osti.gov/servlets/purl/1532184.
@article{osti_1532184,
title = {A real-time phase-space beam emittance monitoring system},
author = {Samadi, Nazanin and Shi, Xianbo and Dallin, Les and Chapman, Dean},
abstractNote = {An electron beam position and angle monitoring system, ps-BPM, has been shown to be able to measure the electron source position and angle at a single location in a beamline at a synchrotron source. This system uses a monochromator to prepare a photon beam whose energy is at that of the K-edge of an absorber filter. The divergence of the beam from the source gives an energy range that will encompass theK-edge of the filter. A measurement of the centre of the monochromatic beam and the K-edge location through the absorber filter gives the position and angle of the electron source. Here, it is shown that this system is also capable of measuring the source size and divergence at the same time. This capability is validated by measurement as the beam size in the storage ring was changed and by ray-tracing simulations. The system operates by measuring the photon beam spatial distribution as well as aK-edge filtered beam distribution. These additional measurements result in the ability to also determine the electron source size and divergence.},
doi = {10.1107/S1600577519005423},
journal = {Journal of Synchrotron Radiation (Online)},
number = 4,
volume = 26,
place = {United States},
year = {2019},
month = {6}
}

Journal Article:
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