Lossless crossing of a resonance stopband during tune modulation by synchrotron oscillations

Wang, G. M.; Shaftan, T.; Smaluk, V.; Li, Y.; Rand, R.

doi:10.1088/1367-2630/aa8742

Title: Lossless crossing of a resonance stopband during tune modulation by synchrotron oscillations

Journal Article · Fri Sep 01 00:00:00 EDT 2017 · New Journal of Physics

DOI:https://doi.org/10.1088/1367-2630/aa8742· OSTI ID:1390381

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Modern high performance circular accelerators require sophisticated corrections of nonlinear lattices. The beam betatron tune footprint may cross many resonances, reducing dynamic aperture and causing particle loss. But, if particles cross a resonance reasonably fast, the beam deterioration may be minimized. This paper describes the experiments with the beam passing through a half-integer resonance stopband via tune modulation by exciting synchrotron oscillations. This is the first time that beam dynamics have been kept under precise control while the beam crosses a half-integer resonance. These results convincingly demonstrate that particles can cross the half-integer resonance without being lost if the passage is reasonably fast and the resonance stopband is sufficiently narrow.

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Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States). National Synchrotron Light Source II (NSLS-II)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: SC0012704

OSTI ID:: 1390381

Alternate ID(s):: OSTI ID: 1392236

Report Number(s):: BNL-114251-2017-JA

Journal Information:: New Journal of Physics, Journal Name: New Journal of Physics Vol. 19 Journal Issue: 9; ISSN 1367-2630

Publisher:: IOP PublishingCopyright Statement

Country of Publication:: United Kingdom

Language:: English

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Cited by: 1 work

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References (16)

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