Open AccessESTIMATION OF GROSS-STRUCTURE PARAMETERS OF GIANT DIPOLE RESONANCE: 1. A METHOD
Author(s) -
V.L. Uvarov,
A.A. Zakharchenko
Publication year - 2021
Publication title -
problems of atomic science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.216
H-Index - 17
eISSN - 1562-6016
pISSN - 1682-9344
DOI - 10.46813/2021-133-104
Subject(s) - full width at half maximum , dipole , excitation , resonance (particle physics) , excitation function , physics , giant resonance , beam (structure) , beam energy , yield (engineering) , work (physics) , function (biology) , atomic physics , energy (signal processing) , isotope , computational physics , optics , nuclear physics , quantum mechanics , evolutionary biology , biology , thermodynamics
Available data on photonuclear cross-sections, both measured experimentally and obtained on the basis of theoretical models, are characterized sometimes by a considerable spread. In work, a simple method for the estimation of width (FWHM) and maximum (σmax) of excitation function of a reaction with dominant giant dipole resonance, is given. An analytical model is developed for the description of isotope production in an X-ray beam. It is shown, that the established yield of the reaction in a thin target, overlapping completely the beam with known end-point photon energy makes it possible to estimate the σmax and FWHM values. The possibilities of new approach are demonstrated by a numerical experiment on the reference reactions.
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