FEL2009 - List of Authors (Campbell, L.T.)

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Campbell, L.T.

Paper	Title	Page
MOPC39	A Fully 3D Unaveraged, Non-Localised Electron, Parallelized-Computational Model of the FEL	115
	L.T. Campbell, R. Martin, B.W.J. McNeil USTRAT/SUPA, Glasgow
	A new un-averaged 3D numerical model has been developed that will allow investigation of previously unexplored FEL physics. Previous 1D models have allowed exploration of the effects of amplification of coherent spontaneous emission and non-localised electron dynamics (see e.g. [1] and refs. therein.) A 3D model was also developed based upon a mixed finite element\Fourier method [2]. However, due to some limitations in the parallel routines, this restricted somewhat the FEL systems the model could describe. A significantly modified version of this model is presented here which does not require a finite element description and uses only transforms in Fourier space. This allows more effective and consistent data organization across multiple parallel processors enabling larger, more complex FEL systems to be studied. Furthermore, unlike the previous 3D model which uses commercially produced numerical packages, the new simulation code uses only open-source routines which will ultimately allow it to be freely available (open-source.) [1] BWJ McNeil, GRM Robb & MW Poole, MPPB060, PAC, Portland, USA, 2003 [2] C.K.W. Nam, P. Aitken, & B.W.J. McNeil, MOPPH025, FEL Conference, Korea, 2008

Paper

Title

Page

MOPC39

A Fully 3D Unaveraged, Non-Localised Electron, Parallelized-Computational Model of the FEL

115

L.T. Campbell, R. Martin, B.W.J. McNeil
USTRAT/SUPA, Glasgow

A new un-averaged 3D numerical model has been developed that will allow investigation of previously unexplored FEL physics. Previous 1D models have allowed exploration of the effects of amplification of coherent spontaneous emission and non-localised electron dynamics (see e.g. [1] and refs. therein.) A 3D model was also developed based upon a mixed finite element\Fourier method [2]. However, due to some limitations in the parallel routines, this restricted somewhat the FEL systems the model could describe. A significantly modified version of this model is presented here which does not require a finite element description and uses only transforms in Fourier space. This allows more effective and consistent data organization across multiple parallel processors enabling larger, more complex FEL systems to be studied. Furthermore, unlike the previous 3D model which uses commercially produced numerical packages, the new simulation code uses only open-source routines which will ultimately allow it to be freely available (open-source.)

[1] BWJ McNeil, GRM Robb & MW Poole, MPPB060, PAC, Portland, USA, 2003
[2] C.K.W. Nam, P. Aitken, & B.W.J. McNeil, MOPPH025, FEL Conference, Korea, 2008