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电子束的轫致辐射生产123I的理论计算
Theoretical calculation of 123~I yield produced by bremsstrahlung irradiation of electron beam
【摘要】 对200MeV高能电子束在钨靶中作用的物理过程进行Monte—Carlo模拟,确定电子-光子转换靶(W)的最佳厚度为7—9mm。并给出124Xe高压气靶为3MPa,当照射3h,在最佳回收时间5.26h回收氙气,可获得123I的活度约5.92MBq。
【Abstract】 The physical process of 200MeV electron beam bombarded on Tungsten was simulated by Monte Carlo method. The optimum thickness of the electron-photon transfermation target is estimated to be 7- 9mm. It is shown that an 123I yield of 5.92MBq can be obtained or optimum retrieving time of 5.26h, with a 3MPa 124Xe gas target and 3h borobardment time.
【关键词】 光核反应;
轫致辐射;
缺中子核素;
【Key words】 Photon-nuclear reaction; Bremsstrahling radiation; Neutron-defect nuclei;
【Key words】 Photon-nuclear reaction; Bremsstrahling radiation; Neutron-defect nuclei;
【基金】 国家科技部攀登(B)项目资助!(85-45-02-1-1)
- 【文献出处】 核技术 ,NUCLEAR TECHNIQUES , 编辑部邮箱 ,2000年08期
- 【分类号】TL92
- 【被引频次】1
- 【下载频次】79