| title: |
Measurements of the octupole-induced amplitude-dependent frequency shift in SPEAR
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| format: |
conference procceeding
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conference:
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1995 Particle Accelerator Conference
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year:
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1995
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5 authors:
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Tran, P.
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C. Pellegrini
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Yang, J.
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M. Cornacchia
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Corbett, J.
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abstract:
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Four octupoles are used in SPEAR to provide the frequency spread for Landau damping of coupled-bunch motions at high current. With the planned implementation of a new low-emittance lattice, the effectiveness of the octupoles needs to be quantified. The recent development of a multi-dimensional turn-by-turn phase-space monitor and the availability of an accurate frequency analysis technique have made measurement of the octupole-induced amplitude-dependent frequency shift in the new SPEAR lattice possible. This paper presents the data collection and analysis procedures, and compares experimental results to model-based simulations. (5 References).
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keywords:
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