Transverse instability of a bunched beam with space charge and wakefield

Journal Article · Mon Sep 19 00:00:00 EDT 2011 · Physical Review Special Topics - Accelerators and Beams

DOI:https://doi.org/10.1103/PhysRevSTAB.14.094401· OSTI ID:1100788

Balbekov, V.

Transverse coherent instability of a bunch in a ring accelerator is studied with space charge and short wake field taken into account. It is assumed that space charge tune shift significantly exceeds the synchrotron tune. The bunch spectrum, instability growth rate and effects of chromaticity are studied over a wide range of parameters. Fast instability caused by coupling of transverse modes is studied as well. It is shown that, for monotonic wakes, the TMCI is possible only with certain sign of the wake. Its threshold is calculated precisely for different bunch and wake forms.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• Grant/Contract Number: AC02-07CH11359
• OSTI ID: 1100788
• Alternate ID(s): OSTI ID: 1016876
• Report Number(s): FERMILAB-PUB-11-213-APC; PRABFM; 094401
• Journal Information: Physical Review Special Topics - Accelerators and Beams, Vol. 14, Issue 9; ISSN 1098-4402
• Publisher: American Physical Society
• Country of Publication: United States
• Language: English

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