A High-Efficiency Resonant Cavity for Measurement of a Beam Quadrupole Moment

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Description

Many particle accelerator applications can benefit from online pulse-by-pulse nonintercepting emittance measurement system. Recently, there has been much interest in performing such a measurement with a set of resonant quadrupole-mode cavities. This article explores a geometry to achieve an enhanced shunt impedance in such a cavity by adding a set of posts forming capacitive gaps near the beam pipe outer radius. For typical diagnostic cavity applications, a five-fold increase in shunt impedance can be obtained with this method. The effect of errors in cavity fabrication on the required mode structure are explored.

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13 pages

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Barov, N.; Kim, J. S.; Nantista, C. D. & Miller, R. H. October 26, 2005.

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Description

Many particle accelerator applications can benefit from online pulse-by-pulse nonintercepting emittance measurement system. Recently, there has been much interest in performing such a measurement with a set of resonant quadrupole-mode cavities. This article explores a geometry to achieve an enhanced shunt impedance in such a cavity by adding a set of posts forming capacitive gaps near the beam pipe outer radius. For typical diagnostic cavity applications, a five-fold increase in shunt impedance can be obtained with this method. The effect of errors in cavity fabrication on the required mode structure are explored.

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13 pages

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  • Report No.: SLAC-PUB-11540
  • Grant Number: AC02-76SF00515
  • DOI: 10.2172/878032 | External Link
  • Office of Scientific & Technical Information Report Number: 878032
  • Archival Resource Key: ark:/67531/metadc880163

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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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  • October 26, 2005

Added to The UNT Digital Library

  • Sept. 21, 2016, 2:29 a.m.

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  • Dec. 7, 2016, 3:17 p.m.

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Barov, N.; Kim, J. S.; Nantista, C. D. & Miller, R. H. A High-Efficiency Resonant Cavity for Measurement of a Beam Quadrupole Moment, report, October 26, 2005; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc880163/: accessed November 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.