Subscribe Now Subscribe Today
Science Alert
 
Blue
   
Curve Top
Journal of Applied Sciences
  Year: 2005 | Volume: 5 | Issue: 9 | Page No.: 1645-1649
DOI: 10.3923/jas.2005.1645.1649
 
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Nonlinear Least-squares Fitting for PIXE Spectra

A. Tchantchane, M.A Benamar , A. Azbouche , N. Benouali and S. Tobbeche

Abstract:
An interactive computer program for the analysis of PIXE ( Particle Induced X-ray Emission) spectra was described in this study. The fitting procedure consists of computing a function Y (I, a) which approximates the experimental data at each channel I. a is a set of fitting parameters (energy and resolution calibration, X-rays intensities, absorption and background). The parameters of fit were determined by using a nonlinear least-squares fitting based on the Marquardt`s algorithm. The program takes into account of low energy tail and escape peaks. The program was employed for the analysis of PIXE spectra of geological and biological samples. The peak areas determined by this program are compared to those obtained with AXIL code
PDF Fulltext XML References Citation Report Citation
How to cite this article:

A. Tchantchane, M.A Benamar , A. Azbouche , N. Benouali and S. Tobbeche , 2005. Nonlinear Least-squares Fitting for PIXE Spectra. Journal of Applied Sciences, 5: 1645-1649.

DOI: 10.3923/jas.2005.1645.1649

URL: https://scialert.net/abstract/?doi=jas.2005.1645.1649

COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 

Curve Bottom