Projects per year
Abstract
An algorithm and numerical code for the up-sampling of a system of particles, from a smaller to a larger number, is described. The method introduces a Poissonian 'shotnoise' to the up-sampled distribution, typical of the noise statistics arising in a bunch of particles generated by a particle accelerator. The algorithm is applied to a 6-Dimensional phase-space distribution of relatively few simulation particles, representing an electron beam generated by particle accelerator modelling software, for subsequent injection into an Free Electron Laser (FEL) amplifier which is used here to describe the model. A much larger number of particles is usually required to model the FEL lasing process than is required to model the electron beam accelerators that drive it.A numerical code developed from the algorithm was then used to generate electron bunches for injection into to an unaveraged 3D FEL simulation code, Puffin. Results show good qualitative and quantitative agreement with analytical theory. The program and user manual is available for download.
Original language | English |
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Article number | 108661 |
Number of pages | 17 |
Journal | Computer Physics Communications |
Volume | 286 |
Early online date | 20 Jan 2023 |
DOIs | |
Publication status | Published - 31 May 2023 |
Keywords
- statistical noise
- particle accelrator
- free electron laser
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STFC MoA 4132361: Free Electron Lasers and Advanced Light Sources
McNeil, B. (Principal Investigator)
STFC Science and Technology Facilities Council
1/04/11 → 31/03/26
Project: Research
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Simulations for Future X-ray Free electron Lasers
McNeil, B. (Principal Investigator)
EPSRC (Engineering and Physical Sciences Research Council)
1/02/15 → 31/01/17
Project: Research
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E Infrastructure Bid - Capital Equipment Bid
Littlejohn, D. (Principal Investigator), Fedorov, M. (Co-investigator), Mulheran, P. (Co-investigator) & Reese, J. (Co-investigator)
EPSRC (Engineering and Physical Sciences Research Council)
20/01/12 → 31/03/12
Project: Research
Research output
- 1 Working Paper/Preprint
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Up-sampling of electron beam simulation particles with addition of shot-noise
Traczykowski, P., Campbell, L. T. & McNeil, B. W. J., 15 Dec 2022, (Submitted) Ithaca, N.Y., 16 p.Research output: Working paper › Working Paper/Preprint
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