×
近期发现有不法分子冒充我刊与作者联系,借此进行欺诈等不法行为,请广大作者加以鉴别,如遇诈骗行为,请第一时间与我刊编辑部联系确认(《中国物理C》(英文)编辑部电话:010-88235947,010-88236950),并作报警处理。
本刊再次郑重声明:
(1)本刊官方网址为cpc.ihep.ac.cn和https://iopscience.iop.org/journal/1674-1137
(2)本刊采编系统作者中心是投稿的唯一路径,该系统为ScholarOne远程稿件采编系统,仅在本刊投稿网网址(https://mc03.manuscriptcentral.com/cpc)设有登录入口。本刊不接受其他方式的投稿,如打印稿投稿、E-mail信箱投稿等,若以此种方式接收投稿均为假冒。
(3)所有投稿均需经过严格的同行评议、编辑加工后方可发表,本刊不存在所谓的“编辑部内部征稿”。如果有人以“编辑部内部人员”名义帮助作者发稿,并收取发表费用,均为假冒。
                  
《中国物理C》(英文)编辑部
2024年10月30日

CHARGE DISTRIBUTION IN THE FISSION OF 232Th BY 14MeV NEUTRON

  • Independent yields of 82Br, 96Nb, 112Ag, 130I,132I, 134I, 134mCs, 135mCs, 136Cs and upper limitof independent yield for 140La in the fission of 232Th induced by neutrons of 14 MeVwere determined with nuclear chemistry techniques. The correlation of the fractionalindependent yields in the high yield mass chains with a Gaussian curve of charge dis-tribution has been investigated using various mass formulae and charge distributionhypotheses. The results indicate that the hrpothesis of minimum potential energy witha shell-effected mass equation gives the best fit to the data. The width parameter Cof the charge distribution is found to be 0.80. The large deviations of 32Br and 112Ag from the Gaussian curve seem to show that the low yield in very asymmetric fissioncan be attributed to a narrower width of charge distribution, whereas the high yield insymmetric fission may correlate with a wider width. The trends have been explainedqualitatively in terms of a liquid drop model. There is no evidence for 40-proton subshell effect on the fission yield.
  • 加载中
  • [1] 李文新等,核化学与放射化学,2(1980), 9.[2] S. A. Rao; Phys,Rev. C5(1972), 171.[3] S. A: Rao and P. K. Kuroda, J. Inorg. Nual. Chem.,35(1973); 1443.[4] A.C. Wahl, et al., Phys. Rev,126(1962), 1112.[5] A.C.Wahl. et al.,in Proceeding of the Second International Symposiuw on the Physics and Chemistry of Fission, Vienna, p. 813, 1969.[6] J.V. Kratz et al., Phys. Rev., C13(1976), 2347.[7] J.L. Galinier and L. Yaffe, J. Inorg. Nucl. Chem., 39(1977), 1497.[8] Li Wnxin, et al., Proceodinga Of the International Oonference on Nuclear Phyaica (Aug. 24-30 Berkeley,California), p. 928.[9] 中国科学院近代物理研究所核化学组,高能物理与核物理,2(1978), 343.[10] F. L.Mgore, Anal. Chem., 27(1955), 70.[11] D. L. Swindle et al., J. Inorg. Nucl. Chem., 33 (1971), 651.[12] 核素图表编制组,“核素常用数据表”,原子能出版社,1977.[13] I. Binder et al., LRL-6515 (1977).[14] K. F. Flynn et al., ANL-7749(1970).[15] D. R. Nethawap et al., Phys. Rev., C16(1977),1901.[16] A. E. S. Green, Phys. Rev., 95(1954), 1006.[17] G. Friedlander et al., "Nuclear and Radiochemistry", John Wiley and Sous, Inc., New York,London, Sydney.[18] H. B. Levy. Phys. Rev., 106 (1957). , 1265.[19] C. D. Coryell, Annu. Rev. Nucl Sci., 2(1953), 305.[20] R. Vandenboach and J. R. Huizenga, In Proc. and Inter. Conf. Peaceful Uaee of Atomic Energy, 15(1958), 284.[21] A, O. Denschlae and S. M. Qain, J. Inorg. Nucl. Chem., 33(1971), 3649.[22] S. C. Burnett, Phys. Rev. Lett., 21(1968), 1350.[23] L. A. Gevaert et al., Canadian J. of Chem., 48(1970), 641.[24] D. R. NethawaY and B, Mendoza, Phys. Rev., C6(1972), 1827.[25] H, Wolfaberg, Phys. Rev., 137, 4B, (1985), 929.[26] J. P. Bocquet et al., Nuclear Physics, A189(1972), 556.[27] N. A. Wogman, Phys. Rev., 152(1965), 1088.[28] D. R, Nethaway and B. M. endoza, Phys. Rev,, C6(1972), 1821.[29] E. Jacobe et al., Phys. Rev., C21(1980), 237.[30] H. F. Flynn and L. E, Glendenin, J. Inorg. Nucl. Chem., 37(1975), 869.[31] A. Gaggeleer et al., J. Inorg. Nucl. Chem., 38(1976), 205.[32] H. Gaggeler and H. R. Yon Gunten, Phys. Rev., C17(1978), 172.[33] С. А. Карамян и др., Я#8706;ернαя ФμЗμкα, 9(1969), 715.
  • 加载中

Get Citation
LI WEN-XIN, SUN TONG-YU, SUN XIU-BUA, ZHANG TIAN-MEI, ZHENG MAN-JIAO, DONG TIAN-RONG and FU MING. CHARGE DISTRIBUTION IN THE FISSION OF 232Th BY 14MeV NEUTRON[J]. Chinese Physics C, 1982, 6(3): 365-372.
LI WEN-XIN, SUN TONG-YU, SUN XIU-BUA, ZHANG TIAN-MEI, ZHENG MAN-JIAO, DONG TIAN-RONG and FU MING. CHARGE DISTRIBUTION IN THE FISSION OF 232Th BY 14MeV NEUTRON[J]. Chinese Physics C, 1982, 6(3): 365-372. shu
Milestone
Received: 1981-09-11
Revised: 1900-01-01
Article Metric

Article Views(2131)
PDF Downloads(284)
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

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Email This Article

Title:
Email:

CHARGE DISTRIBUTION IN THE FISSION OF 232Th BY 14MeV NEUTRON

Abstract: Independent yields of 82Br, 96Nb, 112Ag, 130I,132I, 134I, 134mCs, 135mCs, 136Cs and upper limitof independent yield for 140La in the fission of 232Th induced by neutrons of 14 MeVwere determined with nuclear chemistry techniques. The correlation of the fractionalindependent yields in the high yield mass chains with a Gaussian curve of charge dis-tribution has been investigated using various mass formulae and charge distributionhypotheses. The results indicate that the hrpothesis of minimum potential energy witha shell-effected mass equation gives the best fit to the data. The width parameter Cof the charge distribution is found to be 0.80. The large deviations of 32Br and 112Ag from the Gaussian curve seem to show that the low yield in very asymmetric fissioncan be attributed to a narrower width of charge distribution, whereas the high yield insymmetric fission may correlate with a wider width. The trends have been explainedqualitatively in terms of a liquid drop model. There is no evidence for 40-proton subshell effect on the fission yield.

    HTML

Reference (1)

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return