17–22 May 2026
C.I.D
Europe/Zurich timezone

Optimizing a low-gain FEL oscillator for the SAPS Storage Ring: a parameter study

TUP2675
19 May 2026, 16:00
2h
C.I.D

C.I.D

Deauville, France
Board: Tuesday wine: WB07
Poster Presentation MC2.A24: Photon sources: Accelerators and Storage Rings, Other Poster session

Speaker

Fancong Zeng (Institute of High Energy Physics, Chinese Academy of Sciences, University of Chinese Academy of Sciences)

Description

Achieving higher spectral brightness in fourth-generation light sources like the Southern Advanced Photon Source (SAPS) through integrated free-electron laser (FEL) oscillators presents significant challenges. In response, we present a systematic optimization of the parameters for a low-gain FEL oscillator on the SAPS storage ring. Our work quantitatively evaluates how a transverse gradient undulator (TGU) modifies the ring's equilibrium beam parameters and analyzes the effects of harmonic operation and undulator length on FEL gain. These findings offer essential design guidance for implementing such FEL oscillators in storage rings.

Paper status Resubmitted proceeding files received and assigned to an editor. Accepted by Submitter.

Author

Weihang Liu (Institute of High Energy Physics, Chinese Academy of Sciences, Spallation Neutron Source Science Center, University of Chinese Academy of Sciences)

Co-authors

Fancong Zeng (Institute of High Energy Physics, Chinese Academy of Sciences, University of Chinese Academy of Sciences) Jianliang Chen (Institute of High Energy Physics, Chinese Academy of Sciences, Spallation Neutron Source Science Center) Dr Weilun Qin (Institute of High Energy Physics, Chinese Academy of Sciences, Spallation Neutron Source Science Center, University of Chinese Academy of Sciences) Yu Zhao (Institute of High Energy Physics, Chinese Academy of Sciences, Spallation Neutron Source Science Center)

Presentation materials