Ferrite tuned cavity as possible source of bunched beam instability

Results of a systematic study of the frequency response of a Fermilab Booster RF cavity are presented. Measurements were carried out on a spare test cavity as well as on a cavity used in normal booster operation. Measurements on the latter cavity were performed under no-beam conditions. An attempt has been made to relate parasitic (non-fundamental) frequency modes with beam instabilities.<
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