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19种核素的复合参数K_0值的测定

19种核素的复合参数K_0值的测定[J]. 核化学与放射化学, 1988, 10(2): 113-113.
引用本文: 19种核素的复合参数K_0值的测定[J]. 核化学与放射化学, 1988, 10(2): 113-113.
K0 MEASUREMENT OF 19 NUCLIDES[J]. Journal of Nuclear and Radiochemistry, 1988, 10(2): 113-113.
Citation: K0 MEASUREMENT OF 19 NUCLIDES[J]. Journal of Nuclear and Radiochemistry, 1988, 10(2): 113-113.

19种核素的复合参数K_0值的测定

K0 MEASUREMENT OF 19 NUCLIDES

  • 摘要: 本文介绍反应堆中子活化分析中核素的复合参数K_0因子的测量方法及简要原理。给出了19种核素的K_0实测值。结果与文献值作了比较,对大多数核素而言,在5%内吻合。
    Abstract: K, values of 19 nuclides used in reactor neutron activation analysis are determined. These isotopes include 24Na,46Sc, 51Cr, 60Co, 50Fe, 65Zn,72Ga, 95Zr, 103Ru, 110mAg,122Sb,124Sb,l40La,141Ce,147Nd,181Hf,182Ta, 187W. The definition of K0 and measuring method are based on those of Simonits'with certain modifications, e.g, most irradiation target samples are prepared with solution dropped on the aluminum foil. The thermal flux and epithermal flux are obtained using the linear least square method by the activation rates of a set of isotopes instead of three isotopes or Cd-ration measurement. The irradiation period is about 10 hours.γ-rays are measured with Ge(Li) detector. The efficiency of detector is calibrated with standard γ-sources. The accuracies of K0 are less than 5%, These results agree with F. De Cortes' within 5% for most K0,
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出版历程
  • 收稿日期:  1986-11-21
  • 刊出日期:  1988-05-19

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