Giboudot, Y., Edgecock, R., Nilavalan, R and Wolski, A. (2010) Beam Dynamics in NS-FFAG EMMA with Dynamical Maps. In: Proceedings of the 1st International Particle Accelerator Conference. IPAC 2010 . JACoW, Kyoto, Japan, pp. 1856-1858. ISBN 978-92-9083-352-9
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Available under License Creative Commons Attribution.
The Non Scaling Fixed Field Alternating Gradient EMMA has a compact linear lattice. Effect of Fringe Field on the beam has to be studied carefully. A numerical magnetic field map is generated by magnet measurements or magnet design softwares. We developed a technique that produces from the numerical field map, a dynamical map for a particle travelling in the entire EMMA cell for a reference energy without acceleration. Since the beam dynamics change with energy, a set of maps have been produce with different reference energies between 10 and 20MeV. For each reference energy, simulated tune and time of flight (TOF) have been compared with results in Zgoubi - tracking directly through numerical field map. The range of validity of a single map has been investigated by tracking particle with large energy deviation. From that, a sensible acceleration scheme has been implemented.
|Item Type:||Book Chapter|
|Subjects:||Q Science > QC Physics|
|Schools:||School of Applied Sciences|
|Depositing User:||Thomas Edgecock|
|Date Deposited:||15 Jul 2014 14:43|
|Last Modified:||08 Nov 2015 10:30|
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