中国物理B ›› 2020, Vol. 29 ›› Issue (7): 70702-070702.doi: 10.1088/1674-1056/ab96a0

• GENERAL • 上一篇    下一篇

Study on γ-ray source from the resonant reaction 19F(p,αγ)16O at Ep=340 keV

Fu-Long Liu(刘伏龙), Wan-Sha Yang(杨婉莎), Ji-Hong Wei(魏继红), Di Wu(吴笛), Yang-Fan He(何阳帆), Yu-Chen Li(李雨尘), Tian-Li Ma(马田丽), Yang-Ping Shen(谌阳平), Qi-Wen Fan(樊启文), Chuang-Ye He(贺创业), Bing Guo(郭冰), Nai-Yan Wang(王乃彦)   

  1. 1 Key Laboratory of Radiation Beam Technology and Materials Modification of the Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China;
    2 China Institute of Atomic Energy, Beijing 102413, China;
    3 Beijing Radiation Center, Beijing 100875, China
  • 收稿日期:2020-05-25 出版日期:2020-07-05 发布日期:2020-07-05
  • 通讯作者: Chuang-Ye He, Bing Guo, Nai-Yan Wang E-mail:hechuangye@126.com;guobing@ciae.ac.cn;guobing@ciae.ac.cn
  • 基金资助:
    Project supported by the National Key Research and Development Program of China (Grant No. 2016YFA0400502), the National Natural Science Foundation of China (Grant Nos. 11975316 and 11655003), and the Continuous Basic Research Project of China (Grant No. WDJC-2019-02).

Study on γ-ray source from the resonant reaction 19F(p,αγ)16O at Ep=340 keV

Fu-Long Liu(刘伏龙)1,2,3, Wan-Sha Yang(杨婉莎)1,2,3, Ji-Hong Wei(魏继红)1,2,3, Di Wu(吴笛)2, Yang-Fan He(何阳帆)2, Yu-Chen Li(李雨尘)2, Tian-Li Ma(马田丽)2, Yang-Ping Shen(谌阳平)2, Qi-Wen Fan(樊启文)2, Chuang-Ye He(贺创业)2, Bing Guo(郭冰)2, Nai-Yan Wang(王乃彦)1,2,3   

  1. 1 Key Laboratory of Radiation Beam Technology and Materials Modification of the Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China;
    2 China Institute of Atomic Energy, Beijing 102413, China;
    3 Beijing Radiation Center, Beijing 100875, China
  • Received:2020-05-25 Online:2020-07-05 Published:2020-07-05
  • Contact: Chuang-Ye He, Bing Guo, Nai-Yan Wang E-mail:hechuangye@126.com;guobing@ciae.ac.cn;guobing@ciae.ac.cn
  • Supported by:
    Project supported by the National Key Research and Development Program of China (Grant No. 2016YFA0400502), the National Natural Science Foundation of China (Grant Nos. 11975316 and 11655003), and the Continuous Basic Research Project of China (Grant No. WDJC-2019-02).

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摘要： High energy γ-ray can be used in many fields, such as nuclear resonant fluorescence, nuclear medicine imaging. One of the methods to generate high-energy γ-ray is nuclear resonant reaction. The 19F(p, αγ) 16O reaction was used to generate 6.13-MeV γ-ray in this work. The angular distribution of 6.13-MeV γ-ray was measured by six LaBr3 detectors. The thick-target yield curve of 6.13-MeV γ-ray had been measured. The maximum yield was determined to be (1.85±0.01)×10-8 γ/proton, which was measured by HPGe detector and LaBr3 detector. The absolute efficiency of all the detectors was calibrated using 60Co and 27Al(p, γ) 28Si reaction at Ep=992 keV. The cross section and total resonant width of the reaction were determined to be 95.1±1.0 mb (1 b=10-24 cm2) and ΓCM=2.21±0.22 keV, respectively.

关键词: high-energy γ-ray source, thick-target yield, resonant reaction, cross section

Abstract: High energy γ-ray can be used in many fields, such as nuclear resonant fluorescence, nuclear medicine imaging. One of the methods to generate high-energy γ-ray is nuclear resonant reaction. The 19F(p, αγ) 16O reaction was used to generate 6.13-MeV γ-ray in this work. The angular distribution of 6.13-MeV γ-ray was measured by six LaBr3 detectors. The thick-target yield curve of 6.13-MeV γ-ray had been measured. The maximum yield was determined to be (1.85±0.01)×10-8 γ/proton, which was measured by HPGe detector and LaBr3 detector. The absolute efficiency of all the detectors was calibrated using 60Co and 27Al(p, γ) 28Si reaction at Ep=992 keV. The cross section and total resonant width of the reaction were determined to be 95.1±1.0 mb (1 b=10-24 cm2) and ΓCM=2.21±0.22 keV, respectively.

Key words: high-energy γ-ray source, thick-target yield, resonant reaction, cross section

中图分类号:  (X- and γ-ray sources, mirrors, gratings, and detectors)

  • 07.85.Fv
24.30.-v (Resonance reactions) 29.30.Kv (X- and γ-ray spectroscopy) 29.40.-n (Radiation detectors)