Formation of 111Pd isomers in neutron fission of several heavy nucleides

作者: D.C. Aumann , K.F. Flynn , J.E. Gindler , L.E. Glendenin

DOI: 10.1016/0022-1902(69)90008-6

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摘要: Abstract The cumulative yields of the 111Pd isomers have been measured in fission 232Th, 233U, 235U, 238U and 239Pu by neutrons. ratios 11 2 metastable state yield to 5 ground are 0·0043, 0·0209, 0·0096, 0·0048 0·0186 for respective nucleides. estimated error each value is ±10%. Independent isomeric calculated various assumptions charge distribution. results these calculations discussed terms parameters which describe dispersion mass-chain 111 angular momentum with fragments formed. An upper limit 0·43% has placed on β-decay branch 111Rh111mPd.

参考文章(23)
Demetrios G. Sarantites, Glen E. Gordon, Charles D. Coryell, Ratios of Independent Yields of the IsomersTe131−131mandTe133−133min Fission Physical Review. ,vol. 138, pp. B353- B364 ,(1965) , 10.1103/PHYSREV.138.B353
I.B. Häller, G. Andersson, Cross-section ratios of the 80Br isomers in some reactions induced by 70–160 MeV protons Journal of Inorganic and Nuclear Chemistry. ,vol. 20, pp. 12- 18 ,(1961) , 10.1016/0022-1902(61)80452-1
I.F. Croall, H.H. Willis, The yields of the isomers of 81Se and 83Se in the thermal neutron fission of 239Pu Journal of Inorganic and Nuclear Chemistry. ,vol. 25, pp. 1213- 1218 ,(1963) , 10.1016/0022-1902(63)80384-X
F. Bjorklund, S. Fernbach, Optical-Model Analyses of Scattering of 4.1-, 7-, and 14-Mev Neutrons by Complex Nuclei Physical Review. ,vol. 109, pp. 1295- 1298 ,(1958) , 10.1103/PHYSREV.109.1295
T. Sikkeland, G.R. Choppin, Ratio of 115Cd isomers produced in heavy-ion-induced fission Journal of Inorganic and Nuclear Chemistry. ,vol. 27, pp. 13- 19 ,(1965) , 10.1016/0022-1902(65)80183-X
A. C. Wahl, R. L. Ferguson, D. R. Nethaway, D. E. Troutner, K. Wolfsberg, NUCLEAR-CHARGE DISTRIBUTION IN LOW-ENERGY FISSION Physical Review. ,vol. 126, pp. 1112- 1127 ,(1962) , 10.1103/PHYSREV.126.1112