%0 Figure %A Kumar, Sandeep %A Kang, Heung-Sik %A Kim, Dong Eon %D 2013 %T RF phase effect of linac column L2 on the electron-bunch length, current profile after the chicane (main peak, second peak and third highest peak) and the radiation power at a position of 50 m in the undulator %U https://iop.figshare.com/articles/figure/_RF_phase_effect_of_linac_column_em_L_em_sub_2_sub_on_the_electron_bunch_length_current_profile_afte/1012355 %R 10.6084/m9.figshare.1012355.v1 %2 https://ndownloader.figshare.com/files/1480177 %K esase %K laser %K nm %K chicane %K RF phase %K profile %K undulator %K fwhm %K attosecond radiation pulse %K linac %K Atomic Physics %K Molecular Physics %X

Figure 6. RF phase effect of linac column L2 on the electron-bunch length, current profile after the chicane (main peak, second peak and third highest peak) and the radiation power at a position of 50 m in 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.

%I IOP Publishing