About accuracy of the discrimination parameter estimation for the dual high-energy method

International Scientific Conference on "Radiation-Thermal Effects and Processes in Inorganic Materials"

材料科学;物理学

Osipov, S.P.^1 ; Chakhlov, S.V.^1 ; Osipov, O.S.^1 ; Shtein, A.M.^1 ; Strugovtsev, D.V.^1

National Research Tomsk Polytechnic University, Lenin Avenue, 30, Tomsk

634050, Russia^1

关键词: Cargo inspection system;    Effective atomic number;    Experimental estimations;    Hardware parameters;    High energy X ray;    Mathematical formulas;    Parameter error;    Statistical errors;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/81/1/012082/pdf
DOI  :  10.1088/1757-899X/81/1/012082

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

A set of the mathematical formulas to estimate the accuracy of discrimination parameters for two implementations of the dual high energy method - by the effective atomic number and by the level lines is given. The hardware parameters which influenced on the accuracy of the discrimination parameters are stated. The recommendations to form the structure of the high energy X-ray radiation impulses are formulated. To prove the applicability of the proposed procedure there were calculated the statistical errors of the discrimination parameters for the cargo inspection system of the Tomsk polytechnic university on base of the portable betatron MIB-9. The comparison of the experimental estimations and the theoretical ones of the discrimination parameter errors was carried out. It proved the practical applicability of the algorithm to estimate the discrimination parameter errors for the dual high energy method.