QUANTITATIVE PIXE AND MICRO-PIXE ANALYSIS OF THICK SAMPLES AT FUDAN-UNIVERSITY

At Fudan University, the work of quantitative analysis of thick sample s had already begun in 1977 (Ref. [1], J. Fudan Univ. (Nat. Sci.) 1 (1 977) 73), mainly for the analysis of the sword of Yue Prince Gou Jian. The software TSPIXE for quantitative analysis of thick samples was co mpleted in 1992 (Ref. [2], Chin. J. Nucl. Phys. 15 (1993) 133). In thi s paper the theory and database of the software are described. The sof tware has been applied to calculate the trace elemental concentrations of biological, geological and archaeological samples. Some results co ncerning these samples are presented. Compared to the old version, TSP IXE II has incorporated secondary fluorescence. Representative results of the metal analysis considering the secondary fluorescence effect a re presented. The new version of the software TSPIXE now under program ming deals with multilayer samples. A preliminary result is also prese nted.