Aug 22 – 26, 2022
Trieste Convention Centre
Europe/Zurich timezone


Seeded FELs

Aug 23, 2022, 11:00 AM
Auditorium Generali (Trieste Convention Centre)

Auditorium Generali

Trieste Convention Centre

viale Miramare, 24/2 Trieste - Italy


Seeded FELs

  • Ryoichi Hajima (National Institutes for Quantum Science and Technology)

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Chao Feng (Shanghai Advanced Research Institute)
8/23/22, 11:00 AM
Seeded FEL
Invited Orals

Shanghai Soft X-ray FEL facility (SXFEL) is the first X-ray FEL facility in China. Various external seeding techniques have been adopted for improving the performance of SXFEL. Here we report on the first demonstration of echo-enabled harmonic cascade (EEHC) for generating coherent and ultrashort soft X-ray pulses. Benefiting from the superiority of low sensitivity to the electron beam...

Zhen Zhang (SLAC National Accelerator Laboratory), Erik Hemsing (SLAC National Accelerator Laboratory), Mr Aliaksei Halavanau (SLAC National Accelerator Laboratory)
8/23/22, 11:30 AM
Seeded FEL
Invited Orals

We describe a new method to produce intensity stable, highly coherent, narrow-band x-ray pulses in self-seeded free electron (FEL) lasers. The approach uses an ultrashort electron beam to generate a single spike FEL pulse with a wide coherent bandwidth. The self-seeding monochromator then notches out a narrow spectral region of this pulse to be amplified by a long portion of electron beam to...

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