Speakers
Carlo Vicario
(Paul Scherrer Institut)
Christopher Arrell
(Paul Scherrer Institut)
Simona Bettoni
(Paul Scherrer Institut)
Andreas Dax
(Paul Scherrer Institut)
Philipp Dijkstal
(Paul Scherrer Institut)
Martin Huppert
(Paul Scherrer Institut)
Eduard Prat
(Paul Scherrer Institut)
Sven Reiche
(Paul Scherrer Institut)
Alexandre Trisorio
(Paul Scherrer Institut)
Alberto Lutman
(SLAC National Accelerator Laboratory)
Description
A novel and noninvasive method for two-color x-ray emission is demonstrated at SwissFEL. In the setup, a laser emittance spoiler pulse is overlapped with the primary photocathode laser to locally spoil the beam emittance and the FEL emission. This results, together with a chirped electron pulse, in X-ray emission at two colors. High-energy, high stability, independent control of the duration and of the intensity of the two colors is demonstrated. The laser emittance spoiler enables shot-to-shot selection between one and two-color FEL emission and further, it is compatible with high repetition-rate FELs, as it does not contribute to beam losses.
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Primary authors
Carlo Vicario
(Paul Scherrer Institut)
Christopher Arrell
(Paul Scherrer Institut)
Simona Bettoni
(Paul Scherrer Institut)
Andreas Dax
(Paul Scherrer Institut)
Philipp Dijkstal
(Paul Scherrer Institut)
Martin Huppert
(Paul Scherrer Institut)
Eduard Prat
(Paul Scherrer Institut)
Sven Reiche
(Paul Scherrer Institut)
Alexandre Trisorio
(Paul Scherrer Institut)
Alberto Lutman
(SLAC National Accelerator Laboratory)
