Details

Autor(en) / Beteiligte

• Shim, Chi Hyun
• Ko, In Soo
• Parc, Yong Woon
• Han, Jang Hui

Titel

Soft X-ray FEL simulation in PAL-XFEL

Ist Teil von

• Journal of the Korean Physical Society, 2015, 67(8), , pp.1301-1308

Ort / Verlag

Seoul: The Korean Physical Society

Erscheinungsjahr

2015

Quelle

SpringerLink

Beschreibungen/Notizen

• The soft X-ray beamline in the Pohang Accelerator Laboratory X-ray Free Electron Laser (PAL-XFEL) will provide a photon beam with a wavelength from 1 nm to 3 nm in the self-amplified spontaneous emission (SASE) mode by using an electron beam with a 3.15-GeV beam energy. Linearly polarized radiation will be supplied by using six planar undulators (PUs). The linearly-polarized radiation powers at 1 (3) nm can reach 10.2 (30) GW. Polarization of the radiation will be controlled by applying the reverse undulator tapering scheme to the PUs and adding two helical undulators (HUs). The circularly-polarized radiation powers at 1 (3) nm will be 3.11 (11.73) GW. The degrees of circular polarization will be larger than 0.99 for both wavelengths. Three options for the future upgrade of the beamline to increase the radiation power are proposed.