Halo formation in spheroidal bunches with self-consistent stationary distributions

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Description

A new class of self-consistent 6-D phase space stationary distributions is constructed both analytically and numerically. The beam is then mismatched longitudinally and/or transversely, and the authors explore the beam stability and halo formation for the case of 3-D axisymmetric beam bunches using particle-in-cell simulations. They concentrate on beams with bunch length-to-width ratios varying from 1 to 5, which covers the typical range of the APT linac parameters. They find that the longitudinal halo forms first for comparable longitudinal and transverse mismatches. An interesting coupling phenomenon -- a longitudinal or transverse halo is observed even for very small mismatches if ... continued below

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3 p.

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Fedotov, A.V.; Gluckstern, R.L.; Kurennoy, S.S. & Ryne, R.D. December 31, 1998.

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Description

A new class of self-consistent 6-D phase space stationary distributions is constructed both analytically and numerically. The beam is then mismatched longitudinally and/or transversely, and the authors explore the beam stability and halo formation for the case of 3-D axisymmetric beam bunches using particle-in-cell simulations. They concentrate on beams with bunch length-to-width ratios varying from 1 to 5, which covers the typical range of the APT linac parameters. They find that the longitudinal halo forms first for comparable longitudinal and transverse mismatches. An interesting coupling phenomenon -- a longitudinal or transverse halo is observed even for very small mismatches if the mismatch in the other plane is large -- is discovered.

Physical Description

3 p.

Notes

INIS; OSTI as DE99001643

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  • EPAC 1998: 6. European particle accelerator conference, Stockholm (Sweden), 22-26 Jun 1998

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  • Other: DE99001643
  • Report No.: LA-UR--98-2789
  • Report No.: CONF-980671--
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/307945 | External Link
  • Office of Scientific & Technical Information Report Number: 307945
  • Archival Resource Key: ark:/67531/metadc679961

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Creation Date

  • December 31, 1998

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • Feb. 25, 2016, 6:34 p.m.

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Fedotov, A.V.; Gluckstern, R.L.; Kurennoy, S.S. & Ryne, R.D. Halo formation in spheroidal bunches with self-consistent stationary distributions, report, December 31, 1998; New Mexico. (digital.library.unt.edu/ark:/67531/metadc679961/: accessed November 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.