Chinese Physics C > 1994, Vol. 18 > Issue(6): 489-495

Subbarrier Complete Fusion-Fission Reactions of¹⁶)O+²³²Th

China Institute of Atomic Energy, Beijing,102413

Abstract
HTML
Reference
Related

PDF

Abstract：
We have succeeded in isolating the complete arising from complete fusion-fission in terms of the fragment folding angle technique,and measured complete fusion-fission cross sections and fragment angular distributions for the ¹⁶O+ ²³²Th system in the center-of-mass energies between 72.61 and 80.11 MeV.The observed fission excitation function is in quite good agreement with the expectation of the coupled-channels theory.However,the measured fragment angular distributions are more anisotropic than the predictions of both the saddle-point transition-state model and scission model.

References

[1]

M.Beckerman,Phys.Rep.129（1985）145.[2]C.H.Dasso,S.Landowne and A.Winther,Nucl.Phys.,A405（1983）381.[3]R.Vandenbosh,B.B.Back,S.Gil,A.Lazzarini and A.Ray,Phys.Rev,C28（1983）1161.[4]R.Vandenbosh,T.Murakami and C.-C.Sabm et al,Phys.Rev.Lett,56（1986）1234.[5]H.Q.Zhang,J.C.Xu and Z.H.Liu et al,Phys.Rev,C42（1990）1086.[6]J.Fernandez-Niello,C.H.Dasso and S.Landowne,Comp.Phys.Comm,54（1988）409.[7]钱兴、张焕乔、刘祖华等，高能物理与核物理，17（1993）173.[8]钱兴、许谨诚、刘祖华等，高能物理与核物理，18（1994）385.[9]R.Vandenbosh and J.R.Huizenga,Nuclear Fission,Academic Press,New York,1973.[10]A.J.Sierk,Phys.Rev,C33（198）2039.[11]P.D.Bond,Phys.Rev.Lett,52（1984）414;Phys.Rev,C32（1985）471.H.H.Rossner,J.R.Huizenga and W.U.Schroder,Phys,Rev.Lett.53（1984）38;Phys.Rev.C33（1986）560.[12]D.J.Hinde,H.Ogata,M.Tanaka,T.Shimoda,N.Takahashi,A.Shinohara.S.Wakamatsu,K.Katori and H.Okamora,Phys.Rev,C39（1989）2268.[13]B.B.Back,R.R.Eetts and P.Fernandez et al.,Sixth Winter Workshop on Nuclear Dynamics,Jackson Hole,Wyoming,U.S.A.（1990）.

[1]	Zhang Huanqiao,Yang Feng,Lin Chengjian,Liu Zuhua,Hu Yueming. Barrier Distributions for the Quasi-elastic andElastic Scattering of¹⁶O+¹⁵²Sm,¹⁸⁴W. Chinese Physics C, 1998, 22(9): 769-779.
[2]	Gao Chengqun. Fusion Excitation of¹⁶O+²⁴Mg System and Deep Optical Potential. Chinese Physics C, 1997, 21(8): 751-756.
[3]	Yang Yongxu,Li Qingrun. Description of¹⁶O+¹⁶O Elastic Scattering at 124MeV by a Folding Model. Chinese Physics C, 1997, 21(7): 645-647.
[4]	Gao Chengqun. On the Gross Structure of Fusion Cross Section for¹⁶O+¹²C System. Chinese Physics C, 1997, 21(6): 530-534.
[5]	Li Qingrun,Yang Yongxu. A Folding Model for¹⁶O+¹²C System. Chinese Physics C, 1996, 20(3): 277-279.
[6]	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.
[7]	Wang Sufang,Zheng Jiwen,Liu Guoxing,Chen Keliang,Bat Xingping,Zheng Pingzi,Zhang Huanqiao,Xu Jincheng,Liu Zuhua,Ruan Ming,LV Jun,Xu Kan. Complete Fusion Excitation Function for the¹⁶O+^natS Reaction. Chinese Physics C, 1994, 18(1): 6-12.
[8]	Li Wenxin,Sun Tongyu,Wu Dingqing,Zhao Lin,Jin Genming. Complete and Incomplete Fusion in the Reaction of¹¹⁵In with¹⁶O Ions. Chinese Physics C, 1994, 18(6): 481-488.
[9]	Liu Zhuhua,Xu Jincheng,Zhang Huanqiao,Qian Xing,Qiao Yu,Lin Chengjian,Xu Kan. Subbarrier Complete Fusion-Fission Reactions of¹⁶O+²³²Th. Chinese Physics C, 1994, 18(S2): 121-128.
[10]	Qian Xing,Xu Jincheng,Liu Zuhua,Zhang Huanqiao,Jiang Dongxing,Ye Yanlin. Simulation of The Fission Fragment Angular Correlation For¹⁶O+²³²Th At Barrier Energies. Chinese Physics C, 1994, 18(5): 385-391.
[11]	QIAN Xing,ZHANG Huan-Qiao,LIU Zu-Hua,XU Jin-Cheng,CHEN Shao-Lin,XU Kan,LU Li-Xin. Fission Fragment Angular Correlation in the Reaction Induced by 84.0MeV¹⁶O Bombarded²³⁸U. Chinese Physics C, 1993, 17(2): 173-178.
[12]	LIU Guo-Xing,ZHENG Ji-Wen,CHEN Ke-Liang. Measurement of the Complete Fusion Excitation Function for the¹⁶O+²⁴Mg Reaction. Chinese Physics C, 1992, 16(5): 446-452.
[13]	ZHENG Ji-Wen,ZHENG Zi-Ping,LIU Guo-Xing,CHEN Ke-Liang,WANG Su-Fang,BAI Xing-Ping,YU Xian,ZHANG Huan-Qiao,XU Jin-Cheng,LIU Zu-Hua,RUAN Ming,LV Jun,XU Kan. Measurement of the Complets Fusion Excitation Function for the¹⁶O+²⁸Si Reaction. Chinese Physics C, 1992, 16(7): 640-646.
[14]	WANG Su-Fang,ZHENG Ji-Wen,LIU Guo-Xing,CHEN Ke-Liang,BAI Xing-Ping,YU Xian,ZHENG Ping-Zi,ZHANG Huan-Qiao,XU Jin-Cheng,LIU Zu-Hua,XU Kan,RUAN Ming,LV Jun. Measurement of the Complete Fusion Excitation Function for the¹⁶O+¹²C Reaction. Chinese Physics C, 1992, 16(5): 453-460.
[15]	ZHANG Huan-Qiao,LIU Zu-Hua,XU Jin-Cheng,RUAN Ming,QIAN Xing,XU Kan,LV Jun. Fission-Fragment Angular Distributions for the¹⁶O+²³⁸U Near-and Sub-Barrier Fusion-Fission Reaction. Chinese Physics C, 1992, 16(9): 826-831.
[16]	KONG Xiang-Jing,LI Pan-Lin. About Three-Body Exit Channel in the Reaction¹²C+¹⁶O at E_L(¹⁶O)=56MeV. Chinese Physics C, 1991, 15(8): 748-753.
[17]	LI Wen-Xin,SUN Tong-Yu,WU Ding-Qing,JIN Gen-Ming,SUN Ru-Lin,LI Yun-Sheng,ZHAO Li-Li,WANG Su-Fang. Complete and Incomplete Fusion in the Reaction of⁶⁵Cu With¹⁶O Ions. Chinese Physics C, 1991, 15(4): 329-335.
[18]	GAO Cheng-Qun,HE Guo-Zhu. ON THE REACTION MECHANISM OF ALPHA TRANSFER REACTION FOR¹⁶O(¹⁶O,¹²C)²⁰Ne. Chinese Physics C, 1987, 11(5): 667-673.
[19]	LI WEN-XIN,SUN TONG-YU,SUN XIU-BUA,ZHANG TIAN-MEI,ZHENG MAN-JIAO,DONG TIAN-RONG,FU MING. CHARGE DISTRIBUTION IN THE FISSION OF²³²Th BY 14MeV NEUTRON. Chinese Physics C, 1982, 6(3): 365-372.
[20]	LIU BO,WU ZONG-EN. A MICROSCOPIC CALCULATION OF π⁺-¹⁶O ELASTIC SCATTERING. Chinese Physics C, 1981, 5(1): 134-136.

Access

Get Citation

Liu Zuhua, Xu Jincheng, Zhang Huanqiao, Qian Xing, Qiao Yu, Lin Chengjian and Xu Kan. Subbarrier Complete Fusion-Fission Reactions of ¹⁶)O+ ²³²Th[J]. Chinese Physics C, 1994, 18(6): 489-495.

Liu Zuhua, Xu Jincheng, Zhang Huanqiao, Qian Xing, Qiao Yu, Lin Chengjian and Xu Kan. Subbarrier Complete Fusion-Fission Reactions of ¹⁶)O+ ²³²Th[J]. Chinese Physics C, 1994, 18(6): 489-495. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

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

Article Metric

Article Views(4046)
PDF Downloads(531)
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

Subbarrier Complete Fusion-Fission Reactions of¹⁶)O+²³²Th

Corresponding author:Liu Zuhua,

China Institute of Atomic Energy, Beijing,102413

Received Date:1900-01-01

Accepted Date:1900-01-01

Available Online:1994-06-05

Abstract:We have succeeded in isolating the complete arising from complete fusion-fission in terms of the fragment folding angle technique,and measured complete fusion-fission cross sections and fragment angular distributions for the¹⁶O+²³²Th system in the center-of-mass energies between 72.61 and 80.11 MeV.The observed fission excitation function is in quite good agreement with the expectation of the coupled-channels theory.However,the measured fragment angular distributions are more anisotropic than the predictions of both the saddle-point transition-state model and scission model.

HTML

Reference (1)

Subbarrier Complete Fusion-Fission Reactions of¹⁶)O+²³²Th

Abstract：

References

Access

Article Metrics

Metrics

通讯作者:陈斌, bchen63@163.com

Email This Article