Study on γ-Ray Strength Function of Neutron Radiative Capture for Middle and Heavy Nuclei

LIU Jian-Feng; ZHAO Wei-Juan; SU Zong-Di

Chinese Physics C> 2002, Vol. 26> Issue(12) : 1254-1263

Study on γ-Ray Strength Function of Neutron Radiative Capture for Middle and Heavy Nuclei

Department of Physics,Zhengzhou University,Zhengzhou 450052,China2 China Institute of Atomic Energy,Beijing 102413,China

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Abstract：
Using the hypothesis as well as the γ-ray strength function proposed by us, the neutron radiative capture reaction cross sections and the γ energy spectra have been calculated for ⁹³Nb,natural Ag and ¹⁸¹Ta in the neutron incident energy region from 0.01 to 5MeV as well as for ¹⁹⁷Au in the neutron incident energy region from 0.01 to 10MeV. The results which are coincident better with the experimental values were obtained. The comparisons with the experimental values have shown that, not only the abnormal protuberances near and after 5.5MeV of the γ spectra in the nuclear mass regions about 110<A<140 and 180<A<210 are explained better,but also the γ production data can be theoretically calculated for the middle and heavy nuclei by means of this hypothesis and the γ-ray strength function deduced from this hypothesis.

References

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LIU Jian-Feng, ZHAO Wei-Juan and SU Zong-Di. Study on γ-Ray Strength Function of Neutron Radiative Capture for Middle and Heavy Nuclei[J]. Chinese Physics C, 2002, 26(12): 1254-1263.

LIU Jian-Feng, ZHAO Wei-Juan and SU Zong-Di. Study on γ-Ray Strength Function of Neutron Radiative Capture for Middle and Heavy Nuclei[J]. Chinese Physics C, 2002, 26(12): 1254-1263. shu

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Received: 2002-01-19
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Study on γ-Ray Strength Function of Neutron Radiative Capture for Middle and Heavy Nuclei

Corresponding author: LIU Jian-Feng,

Department of Physics,Zhengzhou University,Zhengzhou 450052,China2 China Institute of Atomic Energy,Beijing 102413,China

Received Date: 2002-01-19

Accepted Date: 1900-01-01

Available Online: 2002-12-05

Abstract: Using the hypothesis as well as the γ-ray strength function proposed by us, the neutron radiative capture reaction cross sections and the γ energy spectra have been calculated for ⁹³Nb,natural Ag and ¹⁸¹Ta in the neutron incident energy region from 0.01 to 5MeV as well as for ¹⁹⁷Au in the neutron incident energy region from 0.01 to 10MeV. The results which are coincident better with the experimental values were obtained. The comparisons with the experimental values have shown that, not only the abnormal protuberances near and after 5.5MeV of the γ spectra in the nuclear mass regions about 110<A<140 and 180<A<210 are explained better,but also the γ production data can be theoretically calculated for the middle and heavy nuclei by means of this hypothesis and the γ-ray strength function deduced from this hypothesis.

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Study on γ-Ray Strength Function of Neutron Radiative Capture for Middle and Heavy Nuclei

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