Trace element analysis of hot spring water by Particle Induced X-ray Emission (PIXE) method

摘要

Particle Induced X-ray Emission (PIXE) technique is well suited for analysis of natural water due to its multielemental capability (Na to U) and uniform sensitivity. The high absolute sensitivity of PIXE, makes it possible to perform analysis of very small size samples [1]. Proton beams of 2-4 MeV obtained from the low energy tandem pelletron accelerator at Institute of Physics are used for the trace element analysis of water. Experimental facility and sample preparation laboratory have been established for PIXE analysis of environmental samples. PIXE method in combination with preconcentration technique, very low detection limits have been obtained for trace element analysis of hot spring water. Sample collection, preparation, irradiation, experimental setup and spectrum evaluation are discussed.