Potential-well distortion in barrier Rf

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Head-tail asymmetry has been observed in the longitudinal beam profiles in the Fermilab Recycler Ring where protons or antiprotons are stored in rf barrier buckets. The asymmetry is caused by the distortion of the rf potential well in the presence of resistive impedance. Gaussian energy distribution can fit the observed asymmetric beam profile but not without discrepancy. It can also fit the measured energy distribution. On the other hand, generalized elliptic distribution gives a better fit to the beam profile. However, it fails to reproduce the observed energy distribution.

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278 Kilobytes pages

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Ng, King April 29, 2004.

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Description

Head-tail asymmetry has been observed in the longitudinal beam profiles in the Fermilab Recycler Ring where protons or antiprotons are stored in rf barrier buckets. The asymmetry is caused by the distortion of the rf potential well in the presence of resistive impedance. Gaussian energy distribution can fit the observed asymmetric beam profile but not without discrepancy. It can also fit the measured energy distribution. On the other hand, generalized elliptic distribution gives a better fit to the beam profile. However, it fails to reproduce the observed energy distribution.

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278 Kilobytes pages

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  • 30th Advanced ICFA Beam Dynamics Workshop, Stanford, CA (US), 10/13/2003--10/16/2003

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  • Report No.: FERMILAB-Conf-03/395-T
  • Grant Number: AC02-76CH03000
  • Office of Scientific & Technical Information Report Number: 823254
  • Archival Resource Key: ark:/67531/metadc781171

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Office of Scientific & Technical Information Technical Reports

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  • April 29, 2004

Added to The UNT Digital Library

  • Dec. 3, 2015, 9:30 a.m.

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  • Aug. 5, 2016, 3:43 p.m.

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Ng, King. Potential-well distortion in barrier Rf, article, April 29, 2004; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc781171/: accessed October 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.