Study on the Giant Dipole Resonance Model for γ Production Mechanisms Induced by Fast Nutrons in the Nuclear Mass Region 180≤A≤210

LIU Jian-Feng; JIA Min; ZHAO Wei-Juan

Chinese Physics C> 2003, Vol. 27> Issue(5) : 430-435

Study on the Giant Dipole Resonance Model for γ Production Mechanisms Induced by Fast Nutrons in the Nuclear Mass Region 180≤A≤210

Department of Physics,Zhengzhou University,Zhengzhou 450052,China

Abstract
HTML
Reference
Related

PDF

Abstract：
The subjects related to the giant dipole resonance model for the γ production mechanisms induced by fast neutrons have been studied in the nuclear mass region 180≤A≤210.It contains the difference between the γ-ray strength functions of the cascad γ deexcitation processes in the (n,γ)and (n,n′γ)reactions as well as the variation tendency of the reaction cross section ratios between the direct-semidirect radiative captures and the compound nucleus statistical processes with the incident energies, nuclear mass numbers and the nuclear shells. The numerical calculations and the comparisons with the experimental values for ¹⁸¹Ta,Au and ²⁰⁸Pb have been done in the nentron incident energy region from 1 MeV to 20MeV. The analyses and discussions to the results have also been given.

References

[1]

Axel P.Phys.Rev.,1962,126:6712 Kopecky J.Gamma-Ray Strength Functions,in:Oblozinsky P.Hand-book for calculations of nuclear Data.Vienna:the IAEA ,1998.97—1113　DING Da-Zhao.Progress in Neutron Radiative Capture Stuty.Nuclear Physics.Material Compilation of the Conference in 1978.Beijing:Atomic Energy Press,1979,292—306(in China)　　(丁大钊.中子辐射俘获研究进展.原子核物理,1978年会议资料选编,北京:原子能出版社,1979,292—306)4 LIU Jian-Feng et al.High Energy Phys.and Nucl.Phys.,2001,25(10):994(in Chinese)(刘建峰等.高能物理与核物理,2001,25(10):994)5 Allen B J et al.Advanced in nucl.Phys.,1978,10:1296 HUO Yu–kun et al.Nucl.Phys.,1983,A406:17 LIU Jian–Feng et al.High Energy Phys.and Nucl.Phys.,1983,7(3):355(in Chinese)(刘建峰等.高能物理与核物理,1983,7(3):355)8 LIU Jian–Feng et al.High Energy Phys.and Nucl.Phys.,1991,15(4):349(in Chinese)(刘建峰等.高能物理与核物理,1991,15(4):349)9 LIU Jian–Feng et al.Chinese Physics,1988,2:45510 HUOYu–Kun et al.High Energy Phys.and Nucl.Phys.,1989,13(5):465(in Chinese)(霍裕昆等.高能物理与核物理,1989,13(5):465)11 Potokar M et al.Nucl.Phys.,1977,A227:2912 Potokar M.Physics Letters,1973,3:34613 Ajzenberg–selove F.Nucl.Phys.,1984,A413:114 Becchetti F D et al.Phys.Rev.,1969,182:119015 Gilbert A ,Cameron A G W.Can.J.Phys.,1965,43:144616 Dietrich S S et al.Atomic Data and Nuclear Data Tables,1988,38:19917 EXFOR(Exchange FORmat),computerized system for the storage,re trieval and international exchange of experimental nuclear reaction data,coordinated by the IAEA Nuclear Data Section

[1]	HE Bao-Ping , YAO Zhi-Bin , SHENG Jiang-Kun , WANG Zu-Jun , HUANG Shao-Yan , LIU Min-Bo , XIAO Zhi-Gang . Study of the dose rate effect of 180 nm nMOSFETs. Chinese Physics C, 2015, 39(1): 016004. doi: 10.1088/1674-1137/39/1/016004
[2]	PENG Hong-An , DUAN Chun-Gui , YAN Zhan-Yuan , HE Zhen-Min . Structure of the Pomeron and the Mechanism for Strong-Production of the Glueball. Chinese Physics C, 2002, 26(7): 658-664.
[3]	ZHANG Yu-Hu . Experimental Study of High-Spin States in Deformed Odd-Odd ¹⁸⁰ Ir. Chinese Physics C, 2002, 26(6): 582-588.
[4]	YAN Zhan-Yuan , DUAN Chun-Gui , HE Zhen-Min . Influence of Color-Octet States to Associate J/ψ+γ Production. Chinese Physics C, 2001, 25(12): 1147-1151.
[5]	WANG ShunJin , LUO HongGang . Microscopic Studies of Giant Resonance in Hot Nuclei——Damping of Giant Resonance and Thermodynamic Properties of Hot Nuclei. Chinese Physics C, 2000, 24(10): 955-961.
[6]	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.
[7]	ZHU Sheng-Jiang . Research on Octupole Deformation of Neutron-Rich Odd-A Nuclei and High Spin States of Some Neutron-Deficient Nuclei in A=130 Region. Chinese Physics C, 2000, 24(S1): 14-20.
[8]	WANG JianSong , SHEN WenQing , MA YuGang , CAI YanHuang , FENG Jun , FANG DeQing , CAI XiangZhou , SU QianMin . . Chinese Physics C, 2000, 24(3): 256-261.
[9]	ZHANG Yu-Hu , ZHAO Qing-Zhong , ZHANG Shuang-Quan , ZHOU Xiao-Hong , XU Hu-Shan , HUANG Wen-Xue , GUO Ying-Xiang , LEI Xiang-Guo , LIU Zhong , LU Jun , FENG Xi-Chen , GOU Quan-Bu , , , , . Experimental Study of High-spin States in Odd-Odd Nuclei around 160-180 Mass Region. Chinese Physics C, 2000, 24(S1): 21-28.
[10]	Zhang Baoguo , Wang Sufang , Duan Limin , Wen Wanxin , Jin Genming , Zheng Jiwen , Li Zuyu , He Zhiyong , Xiao Zhigang , Wang Hongwei . The Study of Giant Dipole Resonance in Hot Nuclei in the ⁴⁰Ar+⁹³Nb Reaction at 25MeV/u. Chinese Physics C, 1998, 22(9): 795-802.
[11]	Fan Tieshuan , Hu Jimin , Bao Shanglian . Multichannel Fission Model Applied to ^223,235,238U (n,f). Chinese Physics C, 1996, 20(5): 422-429.
[12]	Zhong Jiquan , Wen Wanxin , Jin Genming , Di Tori . Pre-equilibrium GDR Built on Dinucleus. Chinese Physics C, 1995, 19(12): 1114-1118.
[13]	Yan Dehong , Dai Guangxi , Luo Qingzheng , He Zhiyong , Qi Yujin . Application of the Modified BUU Model to Reaction Induced by ¹⁶O on ¹⁹⁷An at 20MeV≤E/u≤180 MeV:Dependence of the Angalar and Linear Momentum Transfer on Impact Parameter and Energy. Chinese Physics C, 1994, 18(11): 1035-1042.
[14]	CAI Yan-Huang . The Soft Dipole Resonance Extremely Neutron Rich Nucleus ¹¹Li. Chinese Physics C, 1993, 17(9): 839-844.
[15]	DAI Zi-Gao , FU De-Ji , LIANG Shi-Dong , XU Gong-Ou . The Solution of the Interacting SPD Boson Model with Continuous Variables Representation on Giant Dipole Resonances. Chinese Physics C, 1991, 15(6): 569-576.
[16]	CAO Wen-Qiang , WANG Shun-Jin . ANALYSING PHOTONUCLEAR REACTION CROSS SECTIONS OF GIANT DIPOLE RESONANCES BY USING EXTENDED EXCITON MODEL BEING TREATED APPROXIMATELY. Chinese Physics C, 1989, 13(6): 560-568.
[17]	LI Zhu-Xia , ZHANG Xi-Zhen . A STUDY OF THE ISOSCALAR GIANT RESONANCE IN ⁴⁰Ca. Chinese Physics C, 1986, 10(3): 330-334.
[18]	YANG LI-MING , ZHONG YU-SHU , ZHOU ZHI-NING . THE ROLE PLAYED BY GR IN NEUTRON-NUCLEUS SCATTERING. Chinese Physics C, 1981, 5(2): 255-264.
[19]	Fu De-ji , Xia Ke-ding . THE PYGMY RESONANCE AND SPIN-ISOSPIN OSCILLATION IN THE MASS REGION (A≤208). Chinese Physics C, 1980, 4(2): 228-235.
[20]	YU YOU-WEN , TZU HSI-CHUEN , WU WEI-FANG . FINE STRUCTURE OF THE GIANT DIPOLE RESONACE IN ¹⁶O. Chinese Physics C, 1978, 2(3): 280-284.

Access

Get Citation

LIU Jian-Feng, JIA Min and ZHAO Wei-Juan. Study on the Giant Dipole Resonance Model for γ Production Mechanisms Induced by Fast Nutrons in the Nuclear Mass Region 180≤A≤210[J]. Chinese Physics C, 2003, 27(5): 430-435.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2002-11-08
Revised: 1900-01-01

Article Metric

Article Views(3199)
PDF Downloads(561)
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, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Study on the Giant Dipole Resonance Model for γ Production Mechanisms Induced by Fast Nutrons in the Nuclear Mass Region 180≤A≤210

Corresponding author: LIU Jian-Feng,

Department of Physics,Zhengzhou University,Zhengzhou 450052,China

Received Date: 2002-11-08

Accepted Date: 1900-01-01

Available Online: 2003-05-05

Abstract: The subjects related to the giant dipole resonance model for the γ production mechanisms induced by fast neutrons have been studied in the nuclear mass region 180≤A≤210.It contains the difference between the γ-ray strength functions of the cascad γ deexcitation processes in the (n,γ)and (n,n′γ)reactions as well as the variation tendency of the reaction cross section ratios between the direct-semidirect radiative captures and the compound nucleus statistical processes with the incident energies, nuclear mass numbers and the nuclear shells. The numerical calculations and the comparisons with the experimental values for ¹⁸¹Ta,Au and ²⁰⁸Pb have been done in the nentron incident energy region from 1 MeV to 20MeV. The analyses and discussions to the results have also been given.

HTML

Reference (1)

Study on the Giant Dipole Resonance Model for γ Production Mechanisms Induced by Fast Nutrons in the Nuclear Mass Region 180≤A≤210

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article