Minimum wakefield achievable by waveguide damped cavity

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The authors use an equivalent circuit to model a waveguide damped cavity. Both exponentially damped and persistent (decay t{sup {minus}3/2}) components of the wakefield are derived from this model. The result shows that for a cavity with resonant frequency a fixed interval above waveguide cutoff, the persistent wakefield amplitude is inversely proportional to the external Q value of the damped mode. The competition of the two terms results in an optimal Q value, which gives a minimum wakefield as a function of the distance behind the source particle. The minimum wakefield increases when the resonant frequency approaches the waveguide cutoff. ... continued below

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4 p.

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Lin, X.E. & Kroll, N.M. May 1, 1995.

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Description

The authors use an equivalent circuit to model a waveguide damped cavity. Both exponentially damped and persistent (decay t{sup {minus}3/2}) components of the wakefield are derived from this model. The result shows that for a cavity with resonant frequency a fixed interval above waveguide cutoff, the persistent wakefield amplitude is inversely proportional to the external Q value of the damped mode. The competition of the two terms results in an optimal Q value, which gives a minimum wakefield as a function of the distance behind the source particle. The minimum wakefield increases when the resonant frequency approaches the waveguide cutoff. The results agree very well with computer simulation on a real cavity-waveguide system.

Physical Description

4 p.

Notes

INIS; OSTI as DE95012100

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  • 16. Institute of Electrical and Electronic Engineers (IEEE) particle accelerator conference, Dallas, TX (United States), 1-5 May 1995

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  • Other: DE95012100
  • Report No.: SLAC-PUB--95-6863
  • Report No.: CONF-950512--31
  • Grant Number: AC03-76SF00515;FG03-93ER40759
  • Office of Scientific & Technical Information Report Number: 57188
  • Archival Resource Key: ark:/67531/metadc694484

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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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  • May 1, 1995

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  • Aug. 14, 2015, 8:43 a.m.

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  • Aug. 9, 2016, 11:53 a.m.

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Lin, X.E. & Kroll, N.M. Minimum wakefield achievable by waveguide damped cavity, article, May 1, 1995; Menlo Park, California. (digital.library.unt.edu/ark:/67531/metadc694484/: accessed December 15, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.