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http://dx.doi.org/10.5573/ieek.2013.50.8.238

An Efficient Background Modeling and Correction Method for EDXRF Spectra  

Park, Dong Sun (IT Convergence Research Center, Chonbuk National University)
Jagadeesan, Sukanya (Dept. of Electronics and Communication Eng., Mahendra College of Engineering)
Jin, Moonyong (Division of Electronics Engineering, Chonbuk National University)
Yoon, Sook (Dept. of Multimedia Eng., Mokpo National University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.50, no.8, 2013 , pp. 238-244 More about this Journal
Abstract
In energy dispersive X-ray fluorescence analysis, the removal of the continuum on which the X-ray spectrum is superimposed is one of the most important processes, since it has a strong influence on the analysis result. The existing methods which have been used for it usually require tight constraints or prior information on the continuum. In this paper, an efficient background correction method is proposed for Energy Dispersive X-ray fluorescence (EDXRF) spectra. The proposed method has two steps of background modeling and background correction. It is based on the basic concept which differentiates background areas from the peak areas in a spectrum and the SNIP algorithm, one of the popular methods for background removal, is used to enhance the performance. After detecting some points which belong to the background from a spectrum, its background is modeled by a curve fitting method based on them. And then the obtained background model is subtracted from the raw spectrum. The method has been shown to give better results than some of traditional methods, while working under relatively weak constraints or prior information.
Keywords
SNIP;
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