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 ID: 800301
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Slide1
EUPRAXIA-PISA JUNE 2016e-Beam-Laser
M.
Artioli
, G.
Dattoli
, F.
Nguyen
and S. Pagnutti
Slide2We are trying to goTowards
«Bonsai» FEL
Slide3Whatever we do…oscillators
, SASE…
Slide4Get a fast and reliable description
embedding
the beam with the «laser environment»
Slide5Slide6Fel benchmarking-codesGenesis
,
Prometeo
, Medusa, Perseo
Slide7What are the elements characterizing a FELA
)
Gain
B) Saturation intensityC) output
radiation
Slide8Def.GAIN
Slide9gain…
Slide10Energy Spread, emittance …Gain reduction effects
Slide11FEL-oscillator dynamics
short undulator
We can adjust power in this way
electrons
photons
Gain and output
power
dependance!
Slide12The FEL Intracavity evolution can be characterized using
formulae
closely symilar to those
of conventional laser devices
Round Trip evolution
Slide13SASE-PIVOTAL –PARAMETERSPierce parameter
and Gain
length
Slide14SASE & HARMONIC GENERATION
Slide15Segmented undulators
Slide16Exotic undulators,Biorthogonal,
T
apered
…
Slide17FEL-short pulses
short undulator
electrons
photons
Gain and output
power
dependance!
Slide18Very Short pulses,Single spike,
slippage
dominance
Slide19A) Set up of the PARSIFEL codeB) Study of FEL single spike operation (Numerical)C) Case study Parsifel & beam accelerated parameters
D)
Beam transport and large
emittance spreadE) Transverse Gradient UndulatorsF) Hiring with EUPRAXIA funds
Summary of what
has been
done
WP6
Slide20Beam Transport Large energy spread
20
Slide21WP6 slide: from F.Nguyen & G.
Dattoli
Simulation
&
Modeling Tools benchmarking
: comparison
among
different
semi-
analytical
and full
numerical
FEL
codes
(
see
also
the
presentation
from
G.Dattoli & M.Artioli)FEL power growth comparison between two cases (blue, such as SPARC, red, with LWFA) Report on the state-of-the-art short period undulators and case studies on undulators based on novel technologies: simulation and designJoint study of the beam parameters, extraction and manipulation their impact on the FEL power growthIn advanced phase
WP6 present core task
Synergies with WP5
Slide22Field distributionTGU
Slide23Single spike operation and
scaling
relations