IPAC2011 - List of Authors (Nilavalan, R.)

Paper	Title	Page
WEPC128	Application of Dynamical Maps to the FFAG EMMA Commissioning*	2304
	Y. Giboudot, R. Nilavalan Brunel University, Middlesex, United Kingdom A. Wolski The University of Liverpool, Liverpool, United Kingdom
	Funding: Work supported by the Engineering and Physical Sciences Research Council, UK. The lattice of the Non Scaling FFAG EMMA has four degrees of freedom (strengths and transverse positions of each of the two quadrupoles in each periodic cell). Dynamical maps computed from an analytical representation of the magnetic field may be used to predict the beam dynamics in any configuration of the lattice. An interpolation technique using a mixed variable generating function representation for the map provides an efficient way to generate the map for any required lattice configuration, while ensuring symplecticity of the map. The interpolation technique is used in an optimisation routine, to identify the lattice configuration most closely machine specified dynamical properties, including the variation of time of flight with beam energy (a key characteristic for acceleration in EMMA). yoel.giboudot@stfc.ac.uk

Paper

Title

Page

Application of Dynamical Maps to the FFAG EMMA Commissioning*

2304

Y. Giboudot, R. Nilavalan
Brunel University, Middlesex, United Kingdom
A. Wolski
The University of Liverpool, Liverpool, United Kingdom

Funding: Work supported by the Engineering and Physical Sciences Research Council, UK.
The lattice of the Non Scaling FFAG EMMA has four degrees of freedom (strengths and transverse positions of each of the two quadrupoles in each periodic cell). Dynamical maps computed from an analytical representation of the magnetic field may be used to predict the beam dynamics in any configuration of the lattice. An interpolation technique using a mixed variable generating function representation for the map provides an efficient way to generate the map for any required lattice configuration, while ensuring symplecticity of the map. The interpolation technique is used in an optimisation routine, to identify the lattice configuration most closely machine specified dynamical properties, including the variation of time of flight with beam energy (a key characteristic for acceleration in EMMA).
yoel.giboudot@stfc.ac.uk