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14Mev中子的~(64)Zn(n,2n)~(63)Zn反应截面测量
引用本文:周永义,徐其高,韩民,胡迺雄,顾秀石. 14Mev中子的~(64)Zn(n,2n)~(63)Zn反应截面测量[J]. 南京大学学报(自然科学版), 1989, 0(4)
作者姓名:周永义  徐其高  韩民  胡迺雄  顾秀石
作者单位:南京大学物理系,南京大学物理系,南京大学物理系,南京大学物理系,南京大学物理系
摘    要:
本文用活化法分别以~(56)Fe(n,P)~(56)Mn和~(63)Cu(n,2n)~(62)Cu反应截面为标准,测量了14.61Mev中子的~(64)Zn(n,2n)~(63)Zn反应截面,其值分别为190.1±5.3mb和196.3±7.7mb。又以~(27)Al(n,P)~(27)Mg反应截面为标准,测量了14.13Mev、14.61Mev和14.85Mev三个能点的~(64)Zn(n,2n)~(63)Zn反应戡面,其值分别为116.0±8.7mb、189.4±14.2mb和197.2±14.8mb。活化生成核发射的γ射线用高纯锗(HPGc)γ谱议进行测量。

关 键 词:14Mev中子  ~(64)Zn(n  2n)~(63)Zn反应截面  中子通量密度  效率刻度

THER MEASUREMENT OF THE ~(64)Zn(n,2n)~(63)Zn REACTION CROSS SECTION AROUNDAN ENERGYOB
Zhou Yongyi Xu Qigao Han Ming Hu Naixiong Gu Xiushi. THER MEASUREMENT OF THE ~(64)Zn(n,2n)~(63)Zn REACTION CROSS SECTION AROUNDAN ENERGYOB[J]. Journal of Nanjing University: Nat Sci Ed, 1989, 0(4)
Authors:Zhou Yongyi Xu Qigao Han Ming Hu Naixiong Gu Xiushi
Affiliation:Depantment of Physics
Abstract:
The cross section for the ~(64)Zn(n,2n)~(63)Zn reaction was measured at 14.61Mev using the activation technique relative to well-known cross sections for the reference reactions ~(56)Fe(n,P)~(56)Mn and ~(63)Cu(n,2n)~(62)Cu with cross sections found to be 190.1 5.3 mb and 196.3 7.7 mb respectively. The Same measurements were also made at 14.13 Mev, 14.61 Mev and 14.85 Mev, where the cross sections of ~(27)Al(n,P)~(27)Mg rewere used for reference, and the the corresponding results 116.0 8.7 mb, 189.4 14.2 mb and 197.2 14.8 mb were thus given.The activated samples were counted for the r-activity using a HPGc detector.
Keywords:14Mev Neutrons   ~(64)Zn(n   2n)~(63)Zn reaction cross section   neutron flux density   efficiency calibration
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