Measurements of collective effects in the ALS
Conference
·
OSTI ID:10179984
The Advanced Light Source (ALS) is a newly commissioned 1.5 GeV third generation synchrotron radiation facility. We present a summary of measurements single and multibunch collective effects in the ALS storage ring and correlations with the expected impedance. Longitudinal and transverse coupled-bunch (CB) oscillations are characterized using measurements of beam spectrum, transverse beam size in dispersive regions, and undulator spectral width. Single bunch transverse head-tail damping rate and frequency shift are used to develop a model of the transverse broadband impedance. To date, storage ring performance is limited by longitudinal coupled-bunch oscillations No deleterious single-bunch effects up to 20 mA have been observed.
- Research Organization:
- Lawrence Berkeley Lab., CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 10179984
- Report Number(s):
- LBL--34954; CONF-940618--71; ON: DE94017966
- Country of Publication:
- United States
- Language:
- English
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