Longitudinal bunch deformation of a multi-bunched beam in the TRISTAN Accumulation Ring
- KEK, National Laboratory for High Energy Physics, 1-1 Oho, Tsukuba, 305 (Japan)
A remarkable bunch deformation has been observed in the TRISTAN Accumulation Ring (AR) during multi-bunch operations. When two bunches that have different populations are stored in the ring, the bunch length of the weaker bunch is longer than that of the stronger one. The phenomenon can be explained as an effect of wake fields due to higher-order modes (HOMs) of accelerating cavities. We tried to find out the frequency of the mode and the strength of the wake field, and introduced a new technique called a test bunch measurement. The estimated field strength from the experiment shows a reasonable agreement with the calculation of HOM impedance. {copyright} {ital 1997 American Institute of Physics.}
- OSTI ID:
- 526829
- Report Number(s):
- CONF-9605173--
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 390; ISSN 0094-243X; ISSN APCPCS
- Country of Publication:
- United States
- Language:
- English
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