Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2018 Impact factor 0.961

Nuclear Science and Techniques ›› 2015, Vol. 26 ›› Issue (3): 030503 doi: 10.13538/j.1001-8042/nst.26.030503

• NUCLEAR PHYSICS AND INTERDISCIPLINARY RESEARCH • Previous Articles     Next Articles

An Investigation on induced activation reactions on human essential elements

LV Cui-Juan,1 MA Chun-Wang,1 LIU Yi-Pu,2 ZHANG Wen-Gang, 2 and ZUO Jia-Xu 3   

  1. 1Institute of Particle and Nuclear Physics, Henan Normal University, Xinxiang 453007, China
    2College of Physics and Electronic Engineering, Henan Normal University, Xinxiang 453007, China
    3Department of Nuclear and Radiation Safety Research, Nuclear and Radiation Safety Center (MEP), Beijing 100082, China
  • Contact: MA Chun-Wang, ZUO Jia-Xu E-mail:machunwang@126.com; zuojiaxu@chinansc.cn
  • Supported by:

    Supported by the Plan for Scientific Innovation Talent of Henan Province (PSITHP) and the Young Teacher Project at Henan Normal University

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LV Cui-Juan, MA Chun-Wang, LIU Yi-Pu, ZHANG Wen-Gang, and ZUO Jia-Xu . An Investigation on induced activation reactions on human essential elements.Nuclear Science and Techniques, 2015, 26(3): 030503     doi: 10.13538/j.1001-8042/nst.26.030503

Abstract:

In radiotherapy, the energy of the γ rays used could be larger than 10 MeV, which would potentially activate stable nucleus into a radioactive one. The induced reactions on some of the human essential elements are studied to show the probability of changes of nuclei. The Talys 1.4 toolkit was adopted as the theoretical model for calculation. The reactions investigated include the (γ , n) and (γ , p) channels for the stable Na, Mg, Cl, K, Ca, and Fe isotopes, with the incident energy of γ ranging from 1 to 30 MeV. It was found that the cross sections for the reactions are very low, and the maximum cross section is no larger than 100 mb. By considering the threshold energy of the channel, the half-life time of the residue nucleus, and the percentage of the element accounting for the weight and its importance in the body, it is suggested to track the radioactive nuclei 22Na, 41Ca, and 42,43K after γ therapy. The results might be useful for medical diagnosis and disease treatment.

Key words: Photon activation, therapy, Human essential element, Optical model, Talys