Zgoubi-ing AGS : spin motion with snakes and jump-quads,Gγ = 43.5 through Gγ = 46.5 and beyond

F., Meot ; Ahrens& ; #44 ; L. ; Glenn& ; #44 ; J. ; Huang& ; #44 ; H. ; Luccio& ; #44 ; A. ; MacKay& ; #44 ; W.W. ; Roser& ; #44 ; T. ; Tsoupas& ; #44 ; N.

Brookhaven National Laboratory. AGS Department.

关键词: Magnetic Fields;    43 Particle Accelerators;    Quadrupoles;    Simulation;    Alternating Gradient Synchrotron;   

RP-ID  :  BNL--96974-2009-IR
RP-ID  :  DE-AC02-98CH10886
RP-ID  :  1043983

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来源: UNT Digital Library

【 摘 要 】

This Note reports on the first, and successful, simulations of particle and spin dynamics in the AGS in presence of the two helical snakes and of the tune-jump quadrupoles, using the ray-tracing code Zgoubi. It includes DA tracking in the absence or in the presence of the two helical snakes, simulation of particle and spin motion in the snakes using their magnetic field maps, spin flipping at integer resonances in the 36+Qy depolarizing resonance region, with and without tune-jump quadrupole gymnastics. It also includes details on the setting-up of Zgoubi input data files and on the various numerical methods of concern in and available from Zgoubi.