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

Abstract
HTML
Reference
Related

PDF

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

[1]	LIU Zu-Hua , ZHOU Hong-Yu . Nuclear Halo Effect on Direct Nucleon Capture Cross Sections. Chinese Physics C, 2005, 29(10): 974-977.
[2]	XING Yong-Zhong , LIU Jian-Ye , ZUO Wei , LI Xi-Guo . Special Role of Neutron-Halo Nucleus on the Momentum Dissipation in Heavy Ion Collisions. Chinese Physics C, 2005, 29(10): 978-982.
[3]	SHEN Da-Wa , YU Hui , WU Zong-Hua , HUANG Yong . The Morphology of CDA-g-PMMA Copolymers in Solution Studied by SR-SAXS. Chinese Physics C, 2005, 29(S1): 8-11.
[4]	ZHOU Chun-Mei , WU Zhen-Dong . Calculation of Absolute Intensities of γ-Rays from α Decay. Chinese Physics C, 2004, 28(10): 1074-1078.
[5]	LIU Jian-Feng , LI Chun-Juan , ZHANG Guo-Hui . Study on the Mass Energy Relativities of the Reaction Mechanisms in the Neutron Radiative Capture. Chinese Physics C, 2004, 28(8): 832-837.
[6]	CHEN Zhi-Hua , PAN Lin , LI Gang , XU Mei , XU Bo , ZHAO Tian-De , CHEN Wei-Chang , TANG Jin-Tian . Phase-Contrast Imaging with Synchrotron X-ray for Mouse Lung. Chinese Physics C, 2003, 27(S1): 83-85.
[7]	ZHOU Chun-Mei . γ-Ray Intensity Calculations for Isomeric Transition Decays. Chinese Physics C, 2003, 27(7): 594-597.
[8]	LIU Jian-Feng , ZHAO Wei-Juan . Stuty on the Process of the Fast Neutron Radiative Capture for ⁴⁰Ca and ²⁰⁸Pb. Chinese Physics C, 2002, 26(11): 1158-1165.
[9]	LIU Jian-Feng , ZHAO Wei-Juan , WANG Feng-Ge , SU Zong-Di . Study on γ-Ray Strength Functions and Energy Spectra in the Neutron Radiative Capture of ¹⁹⁷Au. Chinese Physics C, 2001, 25(10): 994-1001.
[10]	ZHAO WeiJuan , LIU JianFeng , HUO YuKun . Resonance Phenomenon in the Fast Neutron Radiative Capture Reaction for ¹²C. Chinese Physics C, 2000, 24(12): 1137-1141.
[11]	Jiang Jianhua , Wang Zhouguang , Tian Yulian , Wang Gongli , Zhao Yang , Cao Mang , Li Dacheng , , . Study of X-Ray Interference Using Synchrotron Radiation. Chinese Physics C, 1998, 22(8): 763-767.
[12]	Wang Dewu , Liu Jianfei . Application of BSRF X-Ray Diffraction Station to Researches in Material Science. Chinese Physics C, 1995, 19(5): 473-478.
[13]	HUO Yu-Kun , YUAN Zhu-Shu . Direct Radiative Capture to Continuum States. Chinese Physics C, 1992, 16(1): 82-89.
[14]	YUAN Zhu-Shu , HUO Yu-Kun , LIU Jian-Feng , LU Zu-Hui . An Unified Formalism to Study Nonstatistical Effects in Radiative Vapture Reactions. Chinese Physics C, 1991, 15(12): 1086-1093.
[15]	REN Zhong-Zhou , XU Gong-Ou . Theoretical Researches on α-transfer Rates of Ground States in Medium and Heavy Nuclei. Chinese Physics C, 1991, 15(1): 87-91.
[16]	REN Zhong-Zhou , XU Gong-Ou . Theoretical Researches on α-transfer Rates of Ground States in Medium and Heavy Nuclei. Chinese Physics C, 1991, 15(3): 251-255.
[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.

Access

Get Citation

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

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

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

Article Metric

Article Views(2891)
PDF Downloads(663)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, [email protected]

1.
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.

HTML

Reference (1)

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

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, [email protected]

Email This Article