Category Archives: WORKSHOP ON NUCLEAR REACTION DATA AND. NUCLEAR REACTORS:. PHYSICS, DESIGN AND SAFETY

Total absorption gamma-ray spectrometry

Greenwood and co-workers have developed total absorption gamma-ray spectrometry (TAGS) in order to determine the intensity distributions of a wide range of P— emitting radionuclides (Greenwood et al, 1994; Helmer et al, 1994; Greenwood et al, 1996; Greenwood et al, 1997). The TAGS system consists of a NaI(Tl) detector with a deep axial counting well to allow almost complete summing […]

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Determination of physical quantities

With the methods described in the previous chapter, we can now calculate all matrix elements of the Hamiltonian H or the norm matrix N in a basis, where the radial dependence of the relative wave function of two fragments is given by rLrel exp(-вг2) for an relative orbital angular momentum Lrei. Choosing a model space and solving the generalized eigenvalue […]

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Nuclear-charge distribution

Nuclear-charge distributions describe the dispersion of yields with mass and atomic numbers (A and Z) of ~1000 primary fission products from each of the many fission reactions (yields are for the fission products after prompt-neutron emission and before beta decay). However, only a small fraction of the yields have been measured, and theoretical models are not sufficiently advanced to give […]

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