Proton Induced γ-ray Emission Yields for External Beam Analysis of F and Na in Aerosol Samples

Proton induced γ-ray emission (PIGE) is commonly used as a complementary technique of proton induced X-ray emission (PIXE) for the analysis of light elements in aerosol samples. In order to get the best operating conditions of PIGE for F and Na determination in aerosol samples relative to thin reference standards in an external beam setup, the γ-ray yields of the reaction ¹⁹F(p,p’γ) ^19F（E_γ=110 keV and 197 keV） and ²³Na(p,p’γ) ²³Na (E_γ=440 keV) were measured for incident protons in the energy range of 1.8-2.9 MeV at the external beam facility of the 1.7 MV tandem accelerator in Beijing Normal University.