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Lossless crossing of a resonance stopband during tune modulation by synchrotron oscillations
- Source :
- New Journal of Physics. 19:093010
- Publication Year :
- 2017
- Publisher :
- IOP Publishing, 2017.
-
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. However, 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. Our 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.
- Subjects :
- Physics
010308 nuclear & particles physics
business.industry
General Physics and Astronomy
Resonance
Stopband
Betatron
01 natural sciences
Synchrotron
law.invention
Dynamic aperture
Optics
law
Modulation
0103 physical sciences
Physics::Accelerator Physics
Beam emittance
010306 general physics
business
Beam (structure)
Subjects
Details
- ISSN :
- 13672630
- Volume :
- 19
- Database :
- OpenAIRE
- Journal :
- New Journal of Physics
- Accession number :
- edsair.doi...........063d8a5c42dd31972daea6f5bfbb0e6e