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

[1]

. Axel P .Phys.Rev.,1962,126:6712. Barthelomew G A .Advances in Nucl.Phys.,1973,7:chap.43. Kopecky J,UhlM .Phy.Rev.,1990,C41:1941 4. Kopecky J.Gamma Ray Strength Functions.In:Oblozinsky P .Handbook for Calculations of Nuclear Reaction Data.Vienna:theIAEA ,199897—1115. Uhl M ,Kopecky J.Gamma Ray Strength Function Model and Their Parameterization.In:Oblozinsky P .Development of Reference Input Parameter Li brary for Nuclear Model Calculations.Vienna:the IAEA ,1995157—166 6. DING Da-Zhao.Progress in Neutron Radiative Capture Study.In:Nuclear Physics.Material Compilation of the Conference in 1978 Beijing:Atomic Energy Press,1979,292—306(in Chinese)(丁大钊.中子辐射俘获研究进展.见:原子核物理,1978年会议资料选编.北京:原子能出版社,1979,292—306)7. Allen B J et al.Advanced in Nucl.Phys.,1978,10:1298. Raman S et al.Phys.Rev.,1985,C32:18 9. HUOYuKun et al.Nucl.Phys.,1983,A406:1 10. Bergqvist I et al.Prog.Nucl.Phys.,1970,11:1 11. Lane A M .Nucl.Phys.,1971,63:171 12. LIU Jian-Feng et al.High Energy Phys.and Nucl.Phys.,2001,10:994(in Chinese)(刘建峰等.高能物理与核物理,2001,10:994)13. Clement C F .Nucl.Phys.,1965,66:273 14. LIU Jian-Feng et al.Chinese Journal of Nucl.Phys.,1992,2:127 15. SHI Xiang-Jun et al.Nucl.Phys.,1987,A466:333 16. LIU Jian-Feng et al.High Energy Phys.and Nucl.Phys.,1990,5:469(in Chinese)(刘建峰等.高能物理与核物理,1990,5:469) 17. LIU Jian-Feng et al.High Energy Phys.and Nucl.Phys.,1991,4:349(in Chinese)(刘建峰等.高能物理与核物理,1991,4:349) 18. Becchetti F D et al.Phys.Rev.,1969,182:1190 19. Gilbert A ,Cameron A G W .Can.J.Phys.,1965,43:1446 20. Dietrich S S et al.Atomic Data and Nuclear Data Tables,1988,38:199 21. Potokar M et al.Nucl.Phys.,1977,A277:2922. EXFOR (EXchange FOR mat).Computerized System for the Storage,Retrieval and International Exchange of Experimental Nu clear Reaction Data,Coordinated by the IAEA Nuclear Data Section 23. Ajzenberg selove F .Nucl.Phys.,1984,A413:1

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[17]	MU Yun-Shan , XU Hai-Shan , XIANG Zheng-Yu , LI Ye-Xiang , WANG Shi-Ming , LIU Jian-Feng . Fast Neutron Capture Cross Section of Natural Molybdenum. Chinese Physics C, 1991, 15(1): 66-70.
[18]	SONG Xiao-Tong , CHEN Zheng . THE FORMATION CROSS SECTION FOR (dμ) ATOM IN RADIATIVE CAPTURE PROCESS. Chinese Physics C, 1986, 10(6): 647-655.
[19]	LIU Jian-Feng , HUO Yu-Kun . RADIATIVE CAPTURE IN THE INELASTIC CHANNEL OF THE COMPOUND NUCLEUS. Chinese Physics C, 1983, 7(3): 355-360.
[20]	HO YU-KUN . NEUTRON CAPTURE GAMMA RAY SPECTRA AT LOW ENERGY. Chinese Physics C, 1981, 5(6): 732-740.

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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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