Beams Document 2444-v3

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Simulation of transition crossing in the Fermilab Booster

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Xi Yang
Updated by:
Xi Yang
Document Created:
07 Sep 2006, 13:09
Contents Revised:
07 Sep 2006, 13:17
Metadata Revised:
12 Oct 2006, 11:22
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In order to build a realistic model for Booster transition crossing, we are updating a particle tracking code STRUCT to 3-D simulation code by adding a longitudinal motion model. The model responsible for the beam acceleration includes space charge effect, γt transition-jump, and the radial feedback system. It has been bench marked against the experiment in the charge transmission vs. the beam intensity and the excitation of bunch length oscillations after transition. It has been applied to investigate the influence of radial feedback gain on the charge transmission, energy error, and beam parameters; the influence of the transition-jump system on the bunch length and momentum spread at transition; and the influence of the phase-jump speed at transition on beam parameters. We are in the process of building a 3-D model for Booster.
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Booster transition
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