Chinese Physics C > 1987, Vol. 11 > Issue(3): 376-383

CHARGE DISTRIBUTION IN THE 14.7MeV-NEUTRON-INDUCED FISSION OF²³²Th: INDEPENDENT YIELDS OF ISOTOPES OF Rh, Ag, In AND Sb

Abstract
HTML
Reference
Related

PDF

Abstract：
The 12 cumulative yields and 7 independent yields in the symmetric region were determined in the fission of ²³²Th induced by 14.7MeV neutrons with nuclear chemistry techniques. The independent yields of the present work, along with the independent yields obtained in our previous work, were used to calculate the empirical Z _pvalues on the basis of a Gaussian charge distribution function with a σ of 0.56. A mean value of 0.49±0.25 for ΔZ(=Z _p—Z _UCD) is obtained from all Z _pvalues in the asymmetric region. Abnormal ΔZ values in the symmetric region seem to suggest that the width of charge distribution for symmetric splits is larger than the value of 0.56. The results show strongly in favor of the Two-Mode-Fission-Hypothesis.

References

[1]

A. C. Wahl et al., Phys. Rev., 126(1962), 1112.[2] A. C. Wahl et al., in Proceedings of the Second International Symposium on the Physics and Chemistry of Fission, Vienna, P. 813, 1969.[3] H. Gaggeler et al., J. Inorg. Nucl. Chem., 38(1976), 205.[4] H. GHggeler and H. R. Von Gunten, Phys. Rev., C17(1978), 172.[5] S. A. Rao, Phys. Rev., C5(1972), 171.[6] A. C. Wahl et al., Phys. Rev., C32(1985), 184.[7] 李文新等, 高能物理与核物理, 6(1982),365.[8] A. S. Rao et al., J. Inorg. Nucl. Chem., 31(1969), 591.[9] S. A. Rao and P. K. Kuroda, J. Inorg. Nucl. Chem., 35(1973), 1443.[10] 孙彤玉、孙秀华等, 近代物理研究所内部资料, 1982年.[11] 李文新等, 核化学与放射化学, 2(1980), 9.[12] D. L. Swindle et al., J. Inorg. Nucl. Chem., 33(1971), 651.[13] U. Reus et al., Comma-Ray Cazalog, CSI-Report 79-2.[14] L. H. Gevaert et al., Can. J. Chcm., 48(1970), 641.[15] R. Ganapathy and P. K. Kuroda, J. Inorg. Nucl. Chcm., 28(1966), 2071.[16] Tin Mo and M. N. Rao, J. Inorg. Nucl. Chcm., 30(1968), 345.[17] H. N. Erten et al., Phys. Rev., C25(1982), 2519.[18] K. Wolfsberg, Phys. Rev., 137, 4B(1965), 929.[19] J. P. Bocquet et al., Nucl. Phys., A189(1972), 556.[20] H. 0. Denschlag and S. M. Qain, J. Inorg. Nucl. Chem., 33(1971), 3649.[21] C. D. Coryell, M. Kaplan and R. D. Fink, Can. J. Chem., 39(1961), 646.[22] D. R. Nethaway and B. Mendoza, Phys. Rev., C6(1972), 1827.[23] E. C. A. Crouch, Atomic Daza and Nuclear Daza Table, 19(1977).[24] D. R. Nethaway and B. Mendoza, Phys. Rev., C6(1972). 1821.[25] D. R. Nethaway and A. E. Richardson, J. Inorg. Nucl. Chem., 43(1981), 889.

[1]	Chang-Lin Lan,Yi Zhang,Tao Lv,Bao-Lin Xie,Meng Peng,Ze-En Yao,Jin-Gen Chen,Xiang-Zhong Kong. Determination of neutron capture cross sections of²³²Th at 14.1 MeV and 14.8 MeV using the neutron activation method. Chinese Physics C, 2017, 41(4): 044002.doi:10.1088/1674-1137/41/4/044002
[2]	,,,,. Cross-section measurements for (n, 2n) reactions on stannum isotopes in the neutron energy range of 13.5 to 14.6 MeV. Chinese Physics C, 2008, 32(1): 28-30.doi:10.1088/1674-1137/32/1/006
[3]	PU Zhong-Sheng,GUAN Qiu-Yun,MA Jun,YAN Dong. Cross Section Measurements for (n,2n), (n,p) and (n,α) Reactions on Germanium Isotopes at the Neutron Energy around 14MeV. Chinese Physics C, 2006, 30(12): 1171-1174.
[4]	HE Guo-Zhu,TUO Fei,KONG Xiang-Zhong. (n,2n),(n,p) and (n,α) Reactions Cross-Sections Measurement on Selenium Isotopes at Neutron Energy of 14MeV. Chinese Physics C, 2006, 30(9): 844-847.
[5]	HE Guo-Zhu,LUO Jun-Hua,LIU Zhong-Jie,KONG Xiang-Zhong. Cross Section Measurements for (n,2n),(n,p)and (n,α) Reactions on Strontium Isotopes at the Neutron Energy About 14MeV. Chinese Physics C, 2005, 29(11): 1057-1060.
[6]	LUO Jun-Hua,ZHOU Feng-Qun,KONG Xiang-Zhong. Cross-Section Measurements for Reactions on Platinum Isotopes in the Neutron Energy Range of 13.5 to 14.6MeV. Chinese Physics C, 2005, 29(6): 561-564.
[7]	XIAO Zhi-Gang,JIN Gen-Ming,WU He-Yu,HU Rong-Jiang,WANG Hong-Wei,LI Zu-Yu,DUAN Li-Min,WANG Su-Fang,WEI Zhi-Yong,ZHANG Bao-Guo,LIU Jian-Ye,ZHU Yong-Tai. Isotropic Distribution of the Projectile-Like Products in the Reaction³⁶Ar+¹²⁴Sn at 35MeV/u. Chinese Physics C, 2003, 27(6): 493-497.
[8]	PU Zhong-Sheng,YANG Jing-Kang,KONG Xiang-Zhong. Cross Section Measurements for (n,2n),(n,p) and (n,n′α)Reactions on Gallium Isotopes at the Neutron Energies of 13.5, 14.1 and 14.6 MeV. Chinese Physics C, 2003, 27(7): 581-584.
[9]	MING Zhao-Yu,ZHANG Feng-Shou,CHEN Lie-Wen,ZHU Zhi-Yuan,ZHAN Wen-Long,GUO Zhong-Yan,XIAO Guo-Qing. Isotopic Distribution in Reactions of^14,16,18O+^7,9Be at 28.7MeV/u. Chinese Physics C, 2001, 25(5): 417-422.
[10]	XIAO Zhi-Gang,WU He-Yu,JIN Gen-Ming,WANG Hong-Wei,HU Rong-Jiang,LIU Yong-Ying,LI Zu-Yu,DUAN Li-Min,ZHANG Bao-Guo,WEI Zhi-Yong,WANG Su-Fang,ZHU Yong-Tai,ZHU Hai-Dong,LU Zhao-Hui. Isotope Ratios of Light Charged Particles and Temperature in the Reactions 30MeV/u⁴⁰Ar+^112,124Sn. Chinese Physics C, 2001, 25(11): 1071-1076.
[11]	Lin Yuangen,Zhan Wenlong,Guo Zhongyan,Zhou Jianqun,Zhao Youxiong,Liu Guanhua,Wang Jinchuan,Luo Yongfeng,Lei Huaihong,Qi Zhong,Zhang Wansheng,Qin Lijun. Study of Isotopic Distributions of the Fragments from the 25MeV/u⁴⁰Ar Induced Reactions. Chinese Physics C, 1998, 22(5): 393-397.
[12]	Zhang Li,Zheng Jiwen,Zhao Jinhua,Qin Zhi,Yang Yongfeng,Hu Qingyuan,Zhang Chun,Wang Jicheng,Guo Tianrui,Jin Genming. Independent Yield Measurement for the Hg-Isotope Products From 600MeV¹⁸O+^natPb (Thick Target) System (Ⅱ) Experiment Results and Analysis. Chinese Physics C, 1998, 22(12): 1068-1073.
[13]	Zhang Li,Zhao Jinhua,Zheng Jiwen,Qin Zhi,Yang Yongfeng,Zhang Chu,Wang Jicheng,Guo Tianrui,Jin Genming,Hu Qingyuan. Independent Yield Measurement for the Hg-Isotope Products From 600 MeV¹⁸O+^natPb(thick target) System (Ⅰ) Experiment and Technique. Chinese Physics C, 1998, 22(11): 969-976.
[14]	YANG Wei-Fan,ZHAO Zhi-Zheng,LI Zong-Wei,SUN Xiu-Rong,XIE Xiu-Jun,MU Wan-Tong,QIN Zhi,ZHANG Li,YANG Yong-Feng,SUN Ru-Lin. Measurment of the Iodine Isotopic Yields from the Interaction of 47MeV/u¹²C with¹³³Cs. Chinese Physics C, 1993, 17(10): 873-877.
[15]	WAN Dai-Rong,CAO Jian-Hua,DAI Yun-Sheng,LIANG Xue-Cai. Measurement of Small-Angle Scattering of 14.7MeV Neutrons by C and Be Nuclei. Chinese Physics C, 1991, 15(2): 165-169.
[16]	ZHU Yong-Tai,HU Xiao-Qing,SHEN Wen-Qing,LI Song-Lin,ZHAN Wen-Long,ZHANG Zhen,ZHU Xiang. THE COMPETITION BETWEEN TRANSFER AND FRAGMENTATION PROCESSES IN²⁰Ne (14.7,19.2MeV/u) INDUCED REACTION. Chinese Physics C, 1990, 14(2): 184-187.
[17]	Sun Tongyu,Li Wenxin,Dong Tianrong,Fu Ming. Mass Distribution in the 14.7 MeV Neutron-induced Fission of²³²Th. Chinese Physics C, 1988, 12(S1): 99-107.
[18]	SUN Tong-Yu,LI Wen-Xin,DONG Tian-Rong,FU Min. MASS DISTRIBUTION IN THE 14.7MeV NEUTRON-INDUCED FISSION OF²³²Th. Chinese Physics C, 1988, 12(2): 221-228.
[19]	SONG Shi-Zhan. PROTONS AND ALPHA PARTICLES EMITTED FROM FISSION INDUCED BY 720MeV¹²C ON²³²Th. Chinese Physics C, 1985, 9(2): 200-206.
[20]	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.

Access

Get Citation

LI Wen-Xin, SUN Tong-Yu, SUN Xiu-Hua, FU Min, DONG Tian-Rong and ZHENG Man-Jiao. CHARGE DISTRIBUTION IN THE 14.7MeV-NEUTRON-INDUCED FISSION OF ²³²Th: INDEPENDENT YIELDS OF ISOTOPES OF Rh, Ag, In AND Sb[J]. Chinese Physics C, 1987, 11(3): 376-383.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

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

Article Metric

Article Views(3666)
PDF Downloads(406)
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

CHARGE DISTRIBUTION IN THE 14.7MeV-NEUTRON-INDUCED FISSION OF²³²Th: INDEPENDENT YIELDS OF ISOTOPES OF Rh, Ag, In AND Sb

Corresponding author:LI Wen-Xin,

Received Date:1900-01-01

Accepted Date:1900-01-01

Available Online:1987-06-05

Abstract:The 12 cumulative yields and 7 independent yields in the symmetric region were determined in the fission of²³²Th induced by 14.7MeV neutrons with nuclear chemistry techniques. The independent yields of the present work, along with the independent yields obtained in our previous work, were used to calculate the empirical Z_pvalues on the basis of a Gaussian charge distribution function with a σ of 0.56. A mean value of 0.49±0.25 for ΔZ(=Z_p—Z_UCD) is obtained from all Z_pvalues in the asymmetric region. Abnormal ΔZ values in the symmetric region seem to suggest that the width of charge distribution for symmetric splits is larger than the value of 0.56. The results show strongly in favor of the Two-Mode-Fission-Hypothesis.

HTML

Reference (1)

CHARGE DISTRIBUTION IN THE 14.7MeV-NEUTRON-INDUCED FISSION OF²³²Th: INDEPENDENT YIELDS OF ISOTOPES OF Rh, Ag, In AND Sb

Abstract：

References

Access

Article Metrics

Metrics

通讯作者:陈斌, bchen63@163.com

Email This Article