Development of wavelength-dispersive micro-IBIL for the chemical structure analysis of micrometer-sized particles

Kada, Wataru; Yokoyama, Akihito; Koka, Masashi; Sato, Takahiro; Kamiya, Tomihiro

Local distribution of the elements with specific chemical-states or structures may decide the behaviours of the host materials, but is hardly obtainable by conventional micro-PIXE analysis. On the other hand, Ion Beam-Induced luminescence (IBIL) analysis is able to estimate chemical-state or structural information of the targets distributed in the interaction area of the ion-beam. This will be an ideal analysis probe to obtain chemical-state imaging of the minerals with micro-meter-size structures. In this study, we analyzed several mineral-complex powders of Si, Al, Fe, Mg, and Mn oxides to characterize luminescent properties of them on the developed 3-MeV-H micro-PIXE/IBIL system. This is a preliminary study to build a database storing those results for the precise analysis of unknown mineral targets. Then, we have tried to analyze actual mineral sample, asbestos.