Open AccessBunch Length Measurement and the Beam Spectra Observation Through High Power RF Waveguide System
Author(s) -
Bo Hong
Publication year - 2004
Language(s) - English
Resource type - Reports
DOI - 10.2172/826787
Subject(s) - klystron , synchrotron , kekb , beam (structure) , physics , streak camera , optics , spectral line , waveguide , synchrotron radiation , radio frequency , streak , oscillation (cell signaling) , superheterodyne receiver , electrical engineering , microwave , nuclear physics , chemistry , collider , engineering , laser , biochemistry , astronomy , quantum mechanics
A wide-band pick-up, which is mounted on the wall of waveguide between the klystron and the RF cavity, has been developed for measuring beam spectra in KEKB. The spectrum between 5 GHz and 20GHz is taken to calculate the bunch length. And the synchrotron oscillation is observed as the side band of revolution peak. The bunch length and synchrotron frequency are measured under the different momentum compaction factors {alpha} and different total RF voltages Vc. Measured bunch length is compared with the measurement of streak camera.
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