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EUPRAXIA-PISA JUNE 2016 e- Beam -Laser

EUPRAXIA-PISA JUNE 2016 e- Beam -Laser. M. Artioli , G. Dattoli , F. Nguyen and S. Pagnutti. We are trying to go Towards «Bonsai» FEL. Whatever we do… oscillators , SASE…. Get a fast and reliable description embedding the beam with the «laser environment ».

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EUPRAXIA-PISA JUNE 2016 e- Beam -Laser

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  1. EUPRAXIA-PISA JUNE 2016e-Beam-Laser M. Artioli, G. Dattoli, F. Nguyen and S. Pagnutti

  2. We are trying to goTowards «Bonsai» FEL

  3. Whateverwedo…oscillators, SASE…

  4. Get a fast and reliabledescriptionembedding the beam with the «laser environment»

  5. Felbenchmarking-codesGenesis, Prometeo, Medusa, Perseo

  6. What are the elementscharacterizing a FEL A) Gain B) Saturationintensity C) output radiation

  7. GAIN Def.

  8. … gain

  9. Energy Spread, emittance …Gain reductioneffects

  10. FEL-oscillatordynamics We can adjust power in this way electrons photons short undulator Gain and output power dependance!

  11. Round Trip evolution The FEL Intracavityevolution can be characterizedusingformulaecloselysymilar to those of conventional laser devices

  12. SASE-PIVOTAL –PARAMETERSPierce parameterand Gain length

  13. SASE & HARMONIC GENERATION

  14. Segmentedundulators

  15. Exoticundulators,Biorthogonal, Tapered…

  16. FEL-short pulses electrons photons short undulator Gain and output power dependance!

  17. Very Short pulses,Singlespike,slippagedominance

  18. Summary of whathasbeendoneWP6 A) Set up of the PARSIFEL code B) Study of FEL single spikeoperation (Numerical) C) Case studyParsifel & beamacceleratedparameters D) Beamtransport and large emittance spread E) TransverseGradientUndulators F) Hiring with EUPRAXIA funds

  19. BeamTransport Large energy spread

  20. WP6 slide: from F.Nguyen & G. Dattoli In advanced phase Simulation & Modeling Tools benchmarking: comparisonamongdifferent semi-analytical and full numerical FEL codes (seealso the presentation from G.Dattoli& M.Artioli) FEL power growth comparison between two cases (blue, such as SPARC, red, with LWFA) WP6 present core task Report on the state-of-the-art short periodundulators andcase studies on undulatorsbased on noveltechnologies: simulation and design Synergies with WP5 Joint study of the beamparameters, extraction and manipulationtheir impact on the FEL powergrowth

  21. TGU Field distribution

  22. Single spikeoperation and scaling relations

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