Speakers
Carlo Vicario
(Paul Scherrer Institute)
Christopher Arrell
(Paul Scherrer Institute)
Simona Bettoni
(Paul Scherrer Institute)
Andreas Dax
(Paul Scherrer Institute)
Philipp Dijkstal
(Paul Scherrer Institute)
Martin Huppert
(Paul Scherrer Institute)
Eduard Prat
(Paul Scherrer Institute)
Sven Reiche
(Paul Scherrer Institute)
Alexandre Trisorio
(Paul Scherrer Institute)
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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Authors
Carlo Vicario
(Paul Scherrer Institute)
Christopher Arrell
(Paul Scherrer Institute)
Simona Bettoni
(Paul Scherrer Institute)
Andreas Dax
(Paul Scherrer Institute)
Philipp Dijkstal
(Paul Scherrer Institute)
Martin Huppert
(Paul Scherrer Institute)
Eduard Prat
(Paul Scherrer Institute)
Sven Reiche
(Paul Scherrer Institute)
Alexandre Trisorio
(Paul Scherrer Institute)
Alberto Lutman
(SLAC National Accelerator Laboratory)
