ON THE USE OF RELATIVE DECELERATION VALUES FOR THE DETERMINATION OF SILICON BY PIGE

By spiking the samples with a compound containing both a non-analyte a nd an analyte element, to which a relative deceleration property for 5 MeV protons has been ascribed, relative deceleration values for the s amples could be obtained by measuring the prompt gamma-yields induced in the non-analyte element. These values are used to correct for matri x effects in elemental analysis using PIGE techniques. In addition to this, the analytical results thus obtained can also be compared to tho se obtained by the simultaneous application of the analyte spiking tec hnique to the collected yield data. These non-analyte spiking approach es were used to analyze silicon in polymer materials. These methods we re tested by analyzing the two reference standards BCS 308 and Standar d Chrome Ore XXXI. Li2SiO3, containing both the non-analyte as well as the analyte element, was selected as comparator and spike. Results ob tained for the polymer samples were also compared to those obtained by PIXE.