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DT2, a PIXE spectra simulation and fitting package
Author(s) -
Reis M. A.,
Chaves P. C.,
Alves L. C.,
Barradas N. P.
Publication year - 2008
Publication title -
x‐ray spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
eISSN - 1097-4539
pISSN - 0049-8246
DOI - 10.1002/xrs.1027
Subject(s) - merge (version control) , spectral line , computer science , high resolution , code (set theory) , computational science , materials science , computational physics , set (abstract data type) , physics , remote sensing , geology , parallel computing , astronomy , programming language
Recently, a new PIXE code, LibCPIXE, was produced as a variant to the old DATTPIXE package following a simulation‐based approach usually not used in PIXE data handling. This approach required to merge the PIXE data handling code, LibCPIXE to NDF, a well‐known code for handling RBS and other IBA methods data, and showed that complex structures in the samples can dramatically change the observed PIXE yields. A full stepwise process was then undertaken in order to produce a new PIXE data handling code that uses the simulation approach not only to estimate the number of K‐α and L‐α x‐rays emitted by the elements present in structured samples but to fit the entire PIXE energy spectra. This approach is of particular importance for the new high x‐ray energy and high resolution PIXE set‐up being installed at ITN, for the precise interpretation of PIXE spectra from complex targets, and also as a robust basis to relative yield ion energy dependence (RYIED) work discussed elsewhere in this conference. In this communication we present the fitting core for the new DT2 package and discuss its capacity. Copyright © 2008 John Wiley & Sons, Ltd.