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| WPAP012 |
Preliminary Results on Beam Dynamics of Laser Pulse Shaping Effects in SPARC
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1315 |
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- M. Boscolo, M. Ferrario, M. Migliorati
INFN/LNF, Frascati (Roma)
- F. Castelli, S. Cialdi, A.F. Flacco
INFN-Milano, Milano
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In a photoinjector system the role played by the laser pulse shaping in achieving high quality electron beam is crucial, as it determines the distribution dependent space charge effects in the early stages of the acceleration. A dedicated code to simulate pulse shaping in a laser system and able to generate the corresponding initial electron beam distribution has been developed. Realistic deviations from the ideal flat top pulse give for example a ramp or multi-peaks shape with a raletive rise time, plateau deformation and ripples. The beam dynamics of electron beams with different initial temporal pulse characteristics along the SPARC photoinjector has also been studied with the code PARMELA. More exotic pulse shaping are also discussed. The study presented here gives some indications on the tolerances of the laser beam characteristics for the electron beam quality preservation.
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