Liu, YX. Liu, T. JACoW Publishing Geneva, Switzerland 978-3-95450-265-3 10.18429/JACoW-SAP2023-MOPB027 English 59-61 electron FEL radiation undulator simulation Contribution to a conference proceedings 2024 2024-11 https://doi.org/10.18429/JACoW-SAP2023-MOPB027 https://jacow.org/sap2023/papers/mopb027.pdf In this paper, the fresh-slice self-seeding free electron laser scheme is studied, and the feasibility of its application in the SHINE project is analyzed. The scheme used the fresh-slice method to generate the beam with adjustable spatial distribution, which can effectively improve the longitudinal coherence and stability of the self-seeding output radiation. Through the FEL simulation, we demonstrated that this scheme can produce a highly stable, narrow bandwidth pulse output under the SHINE’s parametric conditions, which will be beneficial to further improve the performance of this device in the future.