| Paper |
Title |
Page |
| MOPCH062 |
Centroid, Size, and Emittance of a Slice in a Kicked Bunch
|
172 |
| |
- C.-X. Wang, W. Guo
ANL, Argonne, Illinois
|
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| |
A transversely kicked bunch will decohere due to, among other things, chromatic and amplitude-dependent tune shifts. The chromatic tune shift leads to correlation between transverse and longitudinal phase space. Such a correlation can be used for compressing synchrotron radiation of the bunch with adequate optics. In this report, we revise the decoherence calculation to derive the centroid and second moments of a beam slice in a kicked bunch, taking into account chromatic and nonlinear decoherence, but neglecting wakefield and radiation damping, etc. A simple formula for estimating slice bunch length (and potential pulse compression ratio) is given for the ideal situation.
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| WEPCH054 |
Matrix Formalism for Current-independent Optics Design
|
2044 |
| |
- C.-X. Wang, K.-J. Kim
ANL, Argonne, Illinois
|
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| |
Matrix formalism has been a powerful tool for beam optics designs. It not only facilitates computations but also plays an important role in formulating various design concepts. Here we extend the standard matrix formalism for the purpose of designing an optics that transports space-charge-dominated intense beam. Furthermore, we explore the concept of current-independent optics, which can be useful for systems such as high-brightness injectors and space-charge-dominated rings. Our discussion here is preliminary and limited to axisymmetric systems.
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