Nuclear Techniques ›› 2017, Vol. 40 ›› Issue (8): 80201-080201.doi: 10.11889/j.0253-3219.2017.hjs.40.080201

• LOW ENERGY ACCELERATOR, RAY AND APPLICATIONS • Previous Articles     Next Articles

Calibration of a PIXE-RBS ion beam analysis system

XIA Chuandong, LIU Mantian, ZHU Jingjun, AN Zhu   

  1. Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China
  • Received:2017-01-15 Revised:2017-03-22 Online:2017-08-10 Published:2017-08-11
  • Supported by:
    Supported by National Natural Science Foundation of China (No.11175123),Key Laboratory of Neutron Physics,China Academy of Engineering Physics (No.2014BA06)

Abstract: Background: An ion beam analysis system combining proton induced X-ray emission (PIXE) and Rutherford backscattering spectrometry (RBS) has been established based on the 2.5-MeV Van de Graaff accelerator facility in Institute of Nuclear Science and Technology, Sichuan University. Purpose:Calibration of this PIXE-RBS system must be done before further quantitative analysis. The aim is to calibrate this PIXE-RBS system for future quantitative analysis. Methods: 10 single-element thick pure metal samples were measured by PIXE-RBS under experimental condition to determine the so-called instrumental constant H. The least square fit method was utilized to determine the effective thickness of Mylar and Al absorbers and aperture diameter of the funny filter in front of the X-ray detector. Results: The measured H values calculated from experimental spectra for K-shell X-rays of ten single-element thick pure metal samples were a function of X-ray energy, and the H values recalculated using aforementioned three effective values became a constant. A clay standard sample was measured at the same experimental condition to test the accuracy of the calibration, and the measured elemental content values and certified values are in good agreement. Conclusion: The accuracy of the calibration was satisfactory and the calibration results will be used for future PIXE-RBS analysis.

Key words: PIXE, RBS, H value

CLC Number: 

  • TL81