Simulation Studies on the Vertical Emittance Growth in the ATF Extraction Beamline

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Significant dependence of the vertical emittance growth on the beam intensity was experimentally observed at the ATF/KEK extraction beamline. This technical note describes the simulations of possible vertical emittance growth sources, particularly in the extraction channel, where the magnets are shared by both the ATF extraction beamline and its damping ring. The vertical emittance growth is observed in the simulations by changing the beam orbit in the extraction channel even with all optics corrections. The possible reasons for the experimentally observed dependence of the vertical emittance growth on the beam intensity are discussed. An experiment to measure the emittance vs ... continued below

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10 pages

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Zhou, F.; Amann, J.; Selestiky, S.; Seryi, A.; Spencer, C.; Woodley, M. et al. December 18, 2007.

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Description

Significant dependence of the vertical emittance growth on the beam intensity was experimentally observed at the ATF/KEK extraction beamline. This technical note describes the simulations of possible vertical emittance growth sources, particularly in the extraction channel, where the magnets are shared by both the ATF extraction beamline and its damping ring. The vertical emittance growth is observed in the simulations by changing the beam orbit in the extraction channel even with all optics corrections. The possible reasons for the experimentally observed dependence of the vertical emittance growth on the beam intensity are discussed. An experiment to measure the emittance vs beam orbit at the existing ATF extraction beamline is proposed.

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10 pages

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  • Report No.: SLAC-PUB-12892
  • Grant Number: AC02-76SF00515
  • DOI: 10.2172/921291 | External Link
  • Office of Scientific & Technical Information Report Number: 921291
  • Archival Resource Key: ark:/67531/metadc894564

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • December 18, 2007

Added to The UNT Digital Library

  • Sept. 27, 2016, 1:39 a.m.

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  • Dec. 7, 2016, 9:20 p.m.

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Zhou, F.; Amann, J.; Selestiky, S.; Seryi, A.; Spencer, C.; Woodley, M. et al. Simulation Studies on the Vertical Emittance Growth in the ATF Extraction Beamline, report, December 18, 2007; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc894564/: accessed November 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.