jpb450541f5_online.jpg (60.28 kB)

RF phase effect of linac-column L1 on the e-bunch length, the current profile after the chicane (main peak, second peak and third highest peak) and the radiation power at a position of 50 m along the undulator

Download (0 kB)
figure
posted on 13.08.2013 by Sandeep Kumar, Heung-Sik Kang, Dong Eon Kim

Figure 5. RF phase effect of linac-column L1 on the e-bunch length, the current profile after the chicane (main peak, second peak and third highest peak) and the radiation power at a position of 50 m along the undulator.

Abstract

The generation of an isolated attosecond pulse at 0.1 nm has been proposed in an ESASE scheme where an 800 nm, 5 fs FWHM carrier-envelop-phase stabilized laser is employed in the 10 GeV Pohang accelerator laboratory—x-ray free electron laser (PAL-XFEL). The radio-frequency (RF) phase effect has been studied on the current profile after the chicane and on the x-ray radiation power at 50 m along the undulator. This study leads to the tolerance in the RF phase. The results show that a single isolated attosecond radiation pulse could be produced inside the undulator; however, the RF phase should be controlled down to 0.05° in the linac section of the PAL-XFEL in order to satisfy the requirement for RF jitters suitable for pump–probe experiments.

History

Licence

Exports