Isomeric yield ratios of 134I and 136I in the proton-, 12C- and 19F-induced fission of 235U, 237Np and 238U
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N. Shinohara
Short-lived nuclides of iodine produced in the proton-, 12C- and 19F-induced fission of 235U, 237Np and 238U were separated with a rapid chemical separation system SISAK. Relative yields of the nuclides were determined by γ -ray spectrometry to obtain the isomeric yield ratios of 134mI/134gI and 136mI/136gI. Angular momenta of the fission fragments, 134I and 136I, were derived from the measured isomeric yield ratios by the spin-dependent statistical model. In the light- and heavy-ion fission, variation of the observed angular momenta can be explained by the excitation energies of the fissioning nuclei and the spherical shell structure with N = 82.
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Artikel in diesem Heft
- Isomeric yield ratios of 134I and 136I in the proton-, 12C- and 19F-induced fission of 235U, 237Np and 238U
- The formation of mixed-hydroxo complexes of Cm(III) and Am(III) with humic acid in the neutral pH range
- Complexation studies of UO22+ with humic acid at low metal ion concentrations by indirect speciation methods
- Determination of fictive binary data for plutonium(IV) nitrate
- Solvent extraction of uranium(VI) and thorium(IV) from nitrate media by Cyanex 923
- Binding and release of metallic cations by a polyaniline-based resin
- Natural radionuclides and plutonium isotopes in soil and shore sediments on Alexandria Mediterranean sea coast of Egypt
- Activities and activity ratios of U and Ra radioisotopes in drinking wells, springs and tap water samples in Morocco