New models for carrying out cyclic neutron activation. Discussion of the theoretical response

6th Meeting of the Spanish Neutron Scattering Association

Castro-García, M.P.^1 ; Rey-Ronco, M.A.^2 ; Alonso-Sánchez, T.^1

Universidad de Oviedo, Departamento de Explotación y Prospección de Minas, Spain^1

Universidad de Oviedo. Departamento de Energia, Spain^2

关键词: Delayed gammas;    Neutron activation;    Single-cycle activation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/549/1/012007/pdf
DOI  :  10.1088/1742-6596/549/1/012007

来源: IOP

【 摘 要 】

This paper studies two specific procedures for analyzing mining samples through a neutron activation technique called DGNAA (Delayed Gamma Neutron Activation Analysis). This particular study is part of a broader line of research, whose overall objective is to find the optimal procedure for analyzing the fluorite content of samples taken from different parts of a fluorite concentration plant, using the DGNAA method [1-2]. The mining sample is fluorspar, which contains other minerals in addition to fluorite, such as silica, barite, iron oxides and silicates. The main contribution of the article is the development of a new method for determining the fluorite content in minerals and the increase of sensitivity in respect to the symmetrical method and single-cycle activation.