Longitudinal impedance tuner using a new material, FINEMET
Journal Article
·
· AIP Conference Proceedings
- KEK-Tanashi, 3-2-1, Midoricho Tanashi-shi (Japan)
We have succeeded to cancel longitudinal space charge effects using an 'impedance tuner' at the KEK-PS. The impedance tuner consists of the new material, 'FINEMET', which has a large permeability over the beam spectrum region. The frequency shift of the coherent quadrupole mode is measured to infer a modified impedance. It turns out that unavoidable nonlinearity in a longitudinal rf bucket has to be treated carefully in order to digest the observed beam signals. We will describe here how to measure the impedance from the beam signal, how to analyze the effect of the impedance tuner, and how to succeed in canceling any space charge effects.
- OSTI ID:
- 21207633
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 496; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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