Canadian Journal of Physics · 1962 · 34 citations · 4 references
Natural SciencesChemistryPhysicsNuclear ChemistryNuclear PhysicsRadiation MeasurementNuclear DecayRadiation SpectroscopyRadioactive DecayRadiochemical AnalysisNeutron Capture Cross SectionNuclear Half-lifeNuclear Spectroscopy Of Short-lived IsotopesUranium-series Isotopes
The half-life of Th 230 (ionium) has been measured by a calorimetric method and was found to be 75,200 years with a standard error of ± 1,600 years.In the light of this measurement, previously published values for the 2200 m/sec neutron capture cross section and the resonance capture integral (from 0.5 ev to ∞) of Th 230 have been amended to 22.7 ± 0.6 barns and 996 ± 40 barns respectively.
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Differential Calorimeter of the Tian-Calvet Type
R. W. Attree, R. L. Cushing, Joshua Ladd et al. · Review of Scientific Instruments · 1958 · 17 citations