FLS2018 - List of Authors (Setija, I.)

Paper	Title	Page
THA1WA03	GPT-CSR: A New Simulation Code for CSR Effects	157
	S.B. van der Geer, M.J. de Loos Pulsar Physics, Eindhoven, The Netherlands I. Setija, P.W. Smorenburg ASML Netherlands B.V., Veldhoven, The Netherlands P.H. Williams STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom
	For future applications of high-brightness electron beams, including the design of next generation FEL's, correct correct simulation of Coherent Synchrotron Radiation (CSR) is essential as it potentially degrades beam quality to unacceptable levels. However, the long interaction lengths compared to the bunch length, numerical cancellation, and difficult 3D retardation conditions make accurate simulation of CSR effects notoriously difficult. To ease the computational burden, CSR codes often make severe simplifications such as an ultra relativistic bunch travelling on a prescribed reference trajectory. Here we report on a new CSR model, implemented in the General Particle Tracer (GPT) code, that avoids most of the usual assumptions: It directly evaluates the Lienard-Wiechert potentials based on the stored history of the beam, it makes no assumptions about reference trajectories, while also taking into account the transverse size of the beam. First results demonstrating microbunching gain in a chicane are presented.
	Slides THA1WA03 [1.799 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-FLS2018-THA1WA03
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THA1WC01	Compact Arc Compressor for FEL-Driven Compton Light Source and ERL-Driven UV FEL	183
	S. Di Mitri Elettra-Sincrotrone Trieste S.C.p.A., Basovizza, Italy J.A.G. Akkermans, I. Setija ASML Netherlands B.V., Veldhoven, The Netherlands D. Douglas JLab, Newport News, Virginia, USA C. Pellegrini SLAC, Menlo Park, California, USA G. Penn, M. Placidi LBNL, Berkeley, California, USA
	Many research and applications areas require photon sources capable of producing extreme ultra-violet (EUV) to gamma-ray beams with reasonably high fluxes and compact footprints. We explore the feasibility of a compact energy-recovery linac EUV free electron laser (FEL), and of a multi-MeV gamma-rays source based on inverse Compton scattering from a high intensity UV FEL emitted by the electron beam itself. In the latter scenario, the same electron beam is used to produce gamma-rays in the 10-20 MeV range and UV radiation in the 10¹⁵ eV range, in a ~4x22 m² footprint system.* * J.Akkermans, S.Di Mitri, D.Douglas, I.Setija, PRAB 20, 080705 (2017). ** M. Placidi, S. Di Mitri,⁎, C. Pellegrini, G. Penn, NIM A 855 (2017) 55-60.
	Slides THA1WC01 [5.258 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-FLS2018-THA1WC01
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

GPT-CSR: A New Simulation Code for CSR Effects

157

S.B. van der Geer, M.J. de Loos
Pulsar Physics, Eindhoven, The Netherlands
I. Setija, P.W. Smorenburg
ASML Netherlands B.V., Veldhoven, The Netherlands
P.H. Williams
STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom

For future applications of high-brightness electron beams, including the design of next generation FEL's, correct correct simulation of Coherent Synchrotron Radiation (CSR) is essential as it potentially degrades beam quality to unacceptable levels. However, the long interaction lengths compared to the bunch length, numerical cancellation, and difficult 3D retardation conditions make accurate simulation of CSR effects notoriously difficult. To ease the computational burden, CSR codes often make severe simplifications such as an ultra relativistic bunch travelling on a prescribed reference trajectory. Here we report on a new CSR model, implemented in the General Particle Tracer (GPT) code, that avoids most of the usual assumptions: It directly evaluates the Lienard-Wiechert potentials based on the stored history of the beam, it makes no assumptions about reference trajectories, while also taking into account the transverse size of the beam. First results demonstrating microbunching gain in a chicane are presented.

Slides THA1WA03 [1.799 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-FLS2018-THA1WA03

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THA1WC01

Compact Arc Compressor for FEL-Driven Compton Light Source and ERL-Driven UV FEL

183

S. Di Mitri
Elettra-Sincrotrone Trieste S.C.p.A., Basovizza, Italy
J.A.G. Akkermans, I. Setija
ASML Netherlands B.V., Veldhoven, The Netherlands
D. Douglas
JLab, Newport News, Virginia, USA
C. Pellegrini
SLAC, Menlo Park, California, USA
G. Penn, M. Placidi
LBNL, Berkeley, California, USA

Many research and applications areas require photon sources capable of producing extreme ultra-violet (EUV) to gamma-ray beams with reasonably high fluxes and compact footprints. We explore the feasibility of a compact energy-recovery linac EUV free electron laser (FEL)*, and of a multi-MeV gamma-rays source based on inverse Compton scattering from a high intensity UV FEL emitted by the electron beam itself. In the latter scenario, the same electron beam is used to produce gamma-rays in the 10-20 MeV range and UV radiation in the 10¹⁵ eV range, in a ~4x22 m² footprint system.**
* J.Akkermans, S.Di Mitri, D.Douglas, I.Setija, PRAB 20, 080705 (2017).
** M. Placidi, S. Di Mitri,⁎, C. Pellegrini, G. Penn, NIM A 855 (2017) 55-60.

Slides THA1WC01 [5.258 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-FLS2018-THA1WC01

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)