Chinese Physics C > 1995, Vol. 19 > Issue(7): 603-611

Cross Sections of Evaporation Residues of¹²C＋⁹³Nb in the Vicinity of the Coulomb Barrier

Department of Technical Physics, Peking University, Beijing 1008711 Institute of Atomic Energy, Beijing 102413

Abstract
HTML
Reference
Related

PDF

Abstract：
Cross sections for 8 products from the fusion reaction ¹²C＋ ⁹³Nb in the projectile energy range from 28.3 to 45.7 MeV have been obtained by off-line γ technique.The experimental results have been analysed in terms of the simplified coupledchannel model, including the coupling of the inelastic excitation and transfer channels, and statistical model for the compound nuclei. As a result, the excitation functions for the neutron emission channels are well reproduced by the CASCADE code. In the case of proton, alpha emission channels show higher cross sections than the CASCADE predictions. The transfer of alpha particles as doorways to fusion seems to be the main process which is responsible for the fusion enhancement. The experiment shows that the reaction system has large transfer cross section at subbarrier energy.

References

[1]

M.Beckerman,Rep.Prog.Phys,51（1988）1047.[2]B.S.Tomaretal.,Z.Phys.,A343（1992）223.[3]P.Misaelidesetal,Radiochim.Acta.,28（1981）1.[4]L.C.Northcliffeetal,At Data Nucl.Data Tables,A7（1970）233.[5]E.Browneetel,Table of Radioactive Isotopes,（1986）.[6]P.R.S.Gomes et al,Nucl.Phys,A534（1991）429.[7]J.Blocki et al,Ann of Phys,105（1977）427.[8]W.Reisdorf et al,Nucl.Phys.,A444（1985）154.[9]C.H.Dasso et al,Comp.Phys.Comm.,46（1987）187.[10]P.R.Christensen et al.,Phys.Lett.,65B（1976）19.[11]S.Raman et al.,At.Data Nucl.Data Tables,36（1987）1.[12]H.Sievers et al,Nucl.Date Sheets,54（1988）99.[13]F.Puhlhofer et al,Nucl.Phys,A280（1977）267.[14]P.M.Endt et al.,At.Data Nucl.Data Tables,26（1981）47.[15]W.Reisdorf et al,Z.Phys,A300（1981）227.

[1]	Guo-Zhu He,Bin Shi,Ming He,Zhen-Yu Li,Shi-Long Liu,Xiong-Jun Chen,Xi-Chao Ruan,Qi-Wei Zhang,Qi-Wen Fan,Heng Li,Shao-Yong Wu,Shan Jiang,Zu-Ying Zhou. Cross-section measurement for the⁹³Nb(n, 2n)^92gNb reaction at the neutron energy of 14.6 MeV by the AMS method. Chinese Physics C, 2018, 42(7): 074002.doi:10.1088/1674-1137/42/7/074002
[2]	WU Xiu-Kun,LIN Cheng-Jian,YANG Feng,LIU Zu-Hua,ZHANG Huan-Qiao,ZHANG Chun-Lei,ZHOU Ping. Near-barrier quasi-elastic cross sections and barrier distribution of³²S+^90,96Zr. Chinese Physics C, 2006, 30(2): 105-107.
[3]	FENG Zhao-Qing,JIN Gen-Ming,ZHANG Feng-Shou,FU Fen,HUANG Xi. Dynamical Study on Fusion Mechanism near Coulomb Barrier. Chinese Physics C, 2005, 29(12): 1157-1161.
[4]	WU Yue-Wei,LIU Zu-Hua,LIN Cheng-Jian,ZHANG Huan-Qiao,RUAN Ming,YANG Feng,Ll Zhi-Chang,LIU Jian-Cheng. Measurement of Near-Barrier Fusion Excitation Function of⁶Li+²⁰⁸Pb. Chinese Physics C, 2003, 27(5): 399-401.
[5]	WANG Qi,DONG Yu-Chuan,LI Song-Lin,TIAN Wen-Dong,LI Zhi-Chang,LU Xiu-Qin,ZHAO Kui,FU Chang-Bo,LIU Jian-Cheng,JIANG Hua,HU Gui-Qing. Analysis of the Probability Distribution of the Non-reproducibility of the Cross Sections in the Two Dissipative Collisions of¹⁹F+⁹³Nb. Chinese Physics C, 2003, 27(12): 1079-1083.
[6]	TIAN Wen-Dong,WANG Qi,LI Song-Lin,DONG Yu-Chuan,GUO Zhong-Yan,ZHAN Wen-Long,XIAO Guo-Qing,LI Zhi-Chang,LU Xiu-Qin,ZHAO Kui,FU Chang-Bo,LIU Jian-Cheng,,. Reaction Time in the¹⁹F+⁹³Nb Dissipative Collision. Chinese Physics C, 2002, 26(3): 239-244.
[7]	WANG Qi,TIAN Wen-Dong,LI Song-Lin,JIANG Zhong-He,DONG Yu-Chuan,LI Zhi-Chang,LU Xiu-Qin,ZHAO Kui,FU Chang-Bo,LIU Jian-Cheng,JIANG Hua,HU Gui-Qing. Non-reproducibility of the Cross Sections Measured in¹⁹F+⁹³Nb Dissipative Reactions. Chinese Physics C, 2002, 26(2): 141-147.
[8]	WANG Qi,TIAN WenDong,LI SongLin,JIANG ZhongHe,LI ZhiChang,LU XiuQin,ZHAO Kui,FU ChangBo,LIU JianCheng,JIANG Hua,HU GuiQing. Non-reproducibility of the Cross Sections Measured in the Dissipative Collisions of¹⁹F+⁹³Nb. Chinese Physics C, 2000, 24(11): 1060-1065.
[9]	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 the⁴⁰Ar+⁹³Nb Reaction at 25MeV/u. Chinese Physics C, 1998, 22(9): 795-802.
[10]	Duan Limin,Wang Sufang,Zhang Baoguo,Wen Wanxin,Jin Genming,Zheng Jiwen,He Zhiyong,Li Zuyu,Tan Jilian,Xiao Zhigang,Wang Hongwei,WU Heyu. Excitation Energy and Temperature of Hot Nucleiin the Reaction of 25 MeV/u⁴⁰Ar+⁹³Nb. Chinese Physics C, 1998, 22(9): 780-786.
[11]	Lin Chengjian,Xu Jincheng,Zhang Huanqiao,Liu Zuhua,Yang Feng,Lu Lixin. Quasi-elastic Scattering of¹⁹F+²⁰⁸Pb Systemat Near-and Sub-barrier Energies. Chinese Physics C, 1997, 21(10): 872-880.
[12]	Liu Zuhua,Zhang Huanqiao,Xu Jincheng,Qian Xing,Qiao Yu,Lin Chengjian,Xu Kan. Anomaly Observed in Subbarrier Fusion-Fission Reactions. Chinese Physics C, 1995, 19(7): 585-590.
[13]	Liu Zuhua,Xu Jincheng,Zhang Huanqiao,Qian Xing,Qiao Yu,Lin Chengjian,Xu Kan. Subbarrier Complete Fusion-Fission Reactions of¹⁶)O+²³²Th. Chinese Physics C, 1994, 18(6): 489-495.
[14]	SHENG Hong,HE Guo-Zhu. An Interpretation of Sub-Barrier Fusion Reaction Based on α Transfer Mechanism. Chinese Physics C, 1993, 17(2): 161-165.
[15]	LI Wen-Xin,SUN Tong-Yu,SUN Ru-Lin,WU Ding-Qing,JING Gen-Ming,ZHAO Li-Li,LI Zhong-Wei,QIN ZHi. LINEAR MOMENTUM TRANSFER IN THE INTERACTION OF⁹³Nb WITH 46MeV/A¹²C IONS. Chinese Physics C, 1990, 14(12): 1110-1116.
[16]	WANG Su-Fang,CAI Wei,ZHENG Ji-Wen,LIANG Guo-Zhao. STUDY ON CROSS SECTION OF THE SHORT LIFE EVAPORATION RESIDUES IN REACTION¹²C+¹¹²Sn. Chinese Physics C, 1989, 13(7): 627-631.
[17]	YANG Bo-Jun.¹²C+¹²C NUCLEAR MOLECULAR RESONANCES. Chinese Physics C, 1987, 11(2): 268-271.
[18]	WANG Da-Yan,JIN Gen-Ming,ZHANG Li,YUE Hai-Kui,WANG Xi-Ming. INFLUENCE OF THE NEUTRON NUMBER OF TARGET NUCLEUS ON CROSS SECTIONS OF PARTICLES EMISSION IN¹²C+^112,124Sn. Chinese Physics C, 1986, 10(1): 68-74.
[19]	Xu SHU-WEI. A COMPLEMENTARY ANALYSIS OF THE EXPERIMENTAL DATA FOR REACTION¹²C+²⁰⁹Bi AT THE INCIDENT ENERGIES SLIGHTLY ABOVE THE COULOMB BARRIER. Chinese Physics C, 1981, 5(4): 518-520.
[20]	XU SHU-WEI,RAN QI-HUI,MA HONG-FAN. A SEMI-CLASSICAL ANALYSIS ON THE REACTION¹²C+²⁰⁹Bi AT BOMBARDING ENERGIES SLIGHTLY ABOVE THE COULOMB BARRIER. Chinese Physics C, 1978, 2(6): 534-543.

Access

Get Citation

Qian Xing, Jiang Dongxing, Lin Junsong, Liu Daming and Li Ze. Cross Sections of Evaporation Residues of ¹²C＋ ⁹³Nb in the Vicinity of the Coulomb Barrier[J]. Chinese Physics C, 1995, 19(7): 603-611.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1900-01-01
Revised: 1900-01-01

Article Metric

Article Views(3407)
PDF Downloads(494)
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

Cross Sections of Evaporation Residues of¹²C＋⁹³Nb in the Vicinity of the Coulomb Barrier

Corresponding author:Qian Xing,

Department of Technical Physics, Peking University, Beijing 1008711 Institute of Atomic Energy, Beijing 102413

Received Date:1900-01-01

Accepted Date:1900-01-01

Available Online:1995-07-05

Abstract:Cross sections for 8 products from the fusion reaction¹²C＋⁹³Nb in the projectile energy range from 28.3 to 45.7 MeV have been obtained by off-line γ technique.The experimental results have been analysed in terms of the simplified coupledchannel model, including the coupling of the inelastic excitation and transfer channels, and statistical model for the compound nuclei. As a result, the excitation functions for the neutron emission channels are well reproduced by the CASCADE code. In the case of proton, alpha emission channels show higher cross sections than the CASCADE predictions. The transfer of alpha particles as doorways to fusion seems to be the main process which is responsible for the fusion enhancement. The experiment shows that the reaction system has large transfer cross section at subbarrier energy.

HTML

Reference (1)

Cross Sections of Evaporation Residues of¹²C＋⁹³Nb in the Vicinity of the Coulomb Barrier

Abstract：

References

Access

Article Metrics

Metrics

通讯作者:陈斌, bchen63@163.com

Email This Article