The 238U (n, alfa) 235th reaction with thermal neutrons

Cyriel Wagemans, Pierre D'hondt, A.J. Deruytter

    Research outputpeer-review


    The thermal neutron induced (n, α) reaction cross section of 238U was measured using the highly pure thermal neutron beam from the 87 m curved neutron guide at the High Flux Reactor of the ILL (Grenoble). The energy spectrum showed an α-particle line with Eα = 9.05±0.06 MeV and σ(n, α) = 1.3±0.6 μb. The α-particle energy was used to calculate the 235Th mass of 235.04700±0.00008 amu, the Qα value of 9.20±0.06 MeV for the reaction and the Qβ value of 1.44±0.08 MeV for the β-decay of 235Th. The cross-section data are compared with the results obtained with the statistical model calculation.
    Original languageEnglish
    Pages (from-to)429-434
    Number of pages6
    JournalNuclear Physics A
    Issue number3
    StatePublished - 1976

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