Optimization experiments on a pixe system and its application to the analysis of trace elements in shaji

Abstract This paper describes briefly the optimization of a PIXE setup. Three proton energies 1.5, 2.0 and 2.5 MeV and four kinds of absorbers BE (132 μ m), Be (460 μ m), Al (28 μ m) and Be plus Mylar (460 μ m+600 μ m) were used. The minimum detection limits (MDL) of PIXE for these various combinations were computed and compared. PIXE analysis of Shaji ∗∗ was performed as an application. The result shows that the stack absorber of 460 μ m Be and 600 μ m Mylar films and a 2.0 MeV proton energy are most suitable for PIXE analysis of Shaji. Results of the Shaji analysis are presented.