Beam flux measurement using a photon activation analysis method at the SLEGS  

作　　者：Yu-Xuan Yang Yue Zhang Zhi-Cai Li Zi-Rui Hao Sheng Jin Kai-Jie Chen Zhen-Wei Wang Qian-Kun Sun Gong-Tao Fan Hang-Hua Xu Long-Xiang Liu Wei-Juan Zhao Hong-Wei Wang 

机构地区：[1]School of Physics,Zhengzhou University,Zhengzhou 450001,China [2]Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800,China [3]Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai 201210,China [4]School of Nuclear Science and Technology,University of South China,Hengyang 421001,China [5]University of Chinese Academy of Sciences,Beijing 100049,China [6]School of Physical Science and Technology,ShanghaiTech University,Shanghai 201210,China

出　　处：《Nuclear Science and Techniques》2025年第5期11-18,共8页核技术(英文)

基　　金：supported by National Key Research and Development Program of China(Nos.2022YFA1602404 and2023YFA1606901);the National Natural Science Foundation of China(Nos.12275338,12388102,and U2441221);the Key Laboratory of Nuclear Data Foundation(JCKY2022201C152)。

摘　　要：The Shanghai Laser Electron Gamma Source(SLEGS)delivers quasi-monochromatic,continuously energy-tunableγ-ray beams.Based on a Photon Activation Analysis(PAA)method,SLEGS built and developed a photon activation analysis platform,including online activation and offiine low background High-Purity Germanium(HPGe)detector measurement systems,as an alternative to direct measurement methods and low-throughput cross-tests.Owing to short half-lives spanning from minutes to days and characteristics such as ease of fabrication,cost-effectiveness,and stability,gold(~(197)Au)and zinc(~(64)Zn)emerge as favorable activation targets for theγ-ray beam flux monitor.Notably,they exhibit a multitude of advantages in monitoring theγ-ray beam flux,typically 10^(5)photons/s,with energies of 13.16 Me V to 19.08 Me V using a 3 mm coarse collimator.In particular,high-fluxγ-ray beam experiments can be conducted effectively.

关 键 词：SLEGS Laser Compton scattering Beam flux Photon activation analysis 

分 类 号：TL81[核科学技术—核技术及应用]