Lossless crossing of a resonance stopband during tune modulation by synchrotron oscillations
Abstract
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.
- Authors:
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchrotron Light Source II (NSLS-II)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- OSTI Identifier:
- 1390381
- Alternate Identifier(s):
- OSTI ID: 1392236
- Report Number(s):
- BNL-114251-2017-JA
Journal ID: ISSN 1367-2630
- Grant/Contract Number:
- SC0012704
- Resource Type:
- Published Article
- Journal Name:
- New Journal of Physics
- Additional Journal Information:
- Journal Name: New Journal of Physics Journal Volume: 19 Journal Issue: 9; Journal ID: ISSN 1367-2630
- Publisher:
- IOP Publishing
- Country of Publication:
- United Kingdom
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; NSLS-II; synchrotron; oscillation; National Synchrotron Light Source II
Citation Formats
Wang, G. M., Shaftan, T., Smaluk, V., Li, Y., and Rand, R. Lossless crossing of a resonance stopband during tune modulation by synchrotron oscillations. United Kingdom: N. p., 2017.
Web. doi:10.1088/1367-2630/aa8742.
Wang, G. M., Shaftan, T., Smaluk, V., Li, Y., & Rand, R. Lossless crossing of a resonance stopband during tune modulation by synchrotron oscillations. United Kingdom. doi:https://doi.org/10.1088/1367-2630/aa8742
Wang, G. M., Shaftan, T., Smaluk, V., Li, Y., and Rand, R. Fri .
"Lossless crossing of a resonance stopband during tune modulation by synchrotron oscillations". United Kingdom. doi:https://doi.org/10.1088/1367-2630/aa8742.
@article{osti_1390381,
title = {Lossless crossing of a resonance stopband during tune modulation by synchrotron oscillations},
author = {Wang, G. M. and Shaftan, T. and Smaluk, V. and Li, Y. and Rand, R.},
abstractNote = {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.},
doi = {10.1088/1367-2630/aa8742},
journal = {New Journal of Physics},
number = 9,
volume = 19,
place = {United Kingdom},
year = {2017},
month = {9}
}
DOI: https://doi.org/10.1088/1367-2630/aa8742
Web of Science