Photoneutron Dataset Generation and Analysis at SLEGS

摘要: Photonuclear data are increasingly used in basic research of nuclear physics and application of nuclear technology. The generation of photonuclear data depends on advanced gamma source devices. SLEGS is a new Laser Compton Scattering (LCS) gamma source in Shanghai Synchrotron Radiation Facility (SSRF). It is a crucial beamline for photonuclear reaction cross section measurement and related dataset generation in China. Photonuclear data, including photoneutron, photo-proton, photo-alpha and photo-fission data, as well as the inelastically scattered photon (usually known as nuclear resonance fluorescence (NRF)) data, are useful in nuclear physics, nuclear astrophysics, polarization physics, and other related fields. SLEGS, with its monochromatic characteristics and Laser Compton Slant Scattering (LCSS) mode, offers unique features and methodologies for the measurement and analysis of photonuclear data. This article thoroughly explains the systematic uncertainties of the Flat-Efficiency Detector (FED) system. Additionally, it employs $^{197}$Au and $^{159}$Tb as case studies to demonstrate the format and processing methods of raw photoneutron data. The content is aimed at the reuse of data analysis.