Chromaticity measurement using a continuous head-tail kicking technique

In the classical head-tail chromaticity measurement technique, a single large kick is applied transversely to the beam. The resulting phase difference between the head and the tail is measured and the chromaticity extracted. In the continuous head-tail kicking technique, a very small transverse kick...

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Bibliographic Details
Published in2007 IEEE Particle Accelerator Conference (PAC) pp. 3916 - 3918
Main Authors Tan, C.Y., Ranjbar, V.H.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2007
Subjects
Equations
Frequency
Large Hadron Collider
Measurement techniques
Optical modulation
Particle beam measurements
Phase locked loops
Phase measurement
Synchrotrons
Tail
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Summary:In the classical head-tail chromaticity measurement technique, a single large kick is applied transversely to the beam. The resulting phase difference between the head and the tail is measured and the chromaticity extracted. In the continuous head-tail kicking technique, a very small transverse kick is applied to the beam and the asymptotic phase difference between the head and the tail is found to be a function of chromaticity. The advantage of this method is that since the tune tracker PLL already supplies the small transverse kicks, no extra modulation is required.
ISBN:1424409160
9781424409167
ISSN:1944-4680
2152-9582
DOI:10.1109/PAC.2007.4440031