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

Journal Article · · Journal of Synchrotron Radiation (Online)
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)

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.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Natural Sciences and Engineering Research Council of Canada (NSERC); Canadian Institutes of Health Research (CIHR)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1617934
Alternate ID(s):
OSTI ID: 1532184
Journal Information:
Journal of Synchrotron Radiation (Online), Vol. 26, Issue 4; ISSN 1600-5775
Publisher:
International Union of CrystallographyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

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Figures / Tables (8)