| Paper |
Title |
Page |
| MOPOW003 |
RF Phase Jitter Consideration in Bunch Compression |
704 |
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- T.K. Charles, D.M. Paganin
Monash University, Faculty of Science, Clayton, Victoria, Australia
- M.J. Boland, R.T. Dowd
SLSA, Clayton, Australia
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Error propagation of RF phase jitter is analysed for various linac layout configurations and the sensitivity of the compression ratio due to RF phase jitter is analysed. Multiple sources of jitter have the opportunity to destructively interfere, and (perhaps counter intuitively) found to not add in quadrature. Results are compared to Elegant simulations.
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| DOI • |
reference for this paper
※ DOI:10.18429/JACoW-IPAC2016-MOPOW003
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| MOPOW004 |
Electron Trajectory Caustic Formation Resulting in Current Horns present in Bunch Compression |
708 |
| |
- T.K. Charles, D.M. Paganin
Monash University, Faculty of Science, Clayton, Victoria, Australia
- M.J. Boland, R.T. Dowd
SLSA, Clayton, Australia
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Current horns are ubiquitous in Free Electron Laser (FEL) bunch compression. In this paper, we analyse the formation of these current spikes and identify the cause as caustic formation in the electron trajectories. We also present a possible solution to avoid or mitigate the current horns from developing through using optical linearization.
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| DOI • |
reference for this paper
※ DOI:10.18429/JACoW-IPAC2016-MOPOW004
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| TUPOR023 |
Investigation of Trapped Resonant Modes in Insertion Devices at the Australian Synchrotron |
1710 |
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- R.T. Dowd, M.P. Atkinson, M.J. Boland, G. LeBlanc, Y.E. Tan
SLSA, Clayton, Australia
- D. Teytelman
Dimtel, San Jose, USA
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The Australian Synchrotron light Source has 3 variable gap in-vacuum undulators (IVU) in the storage ring. Since installation, these devices have been the source of strong beam instabilities. These instabilities seem to behave as trapped resonant modes of very high Q and high frequency, although a definite source has not been identified. The presence of these instabilities has necessitated operating at unusually high chromaticity for much of the light source's operations. More recently transverse feedback has been able to control the instabilities and recent developments in diagnostics have allowed some investigation of the frequency and mode response of these resonances. The results of this investigation will be presented in this paper.
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| DOI • |
reference for this paper
※ DOI:10.18429/JACoW-IPAC2016-TUPOR023
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