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|Title:||PIXE tomographic reconstruction of elemental distributions using an iterative maximum-likelihood method|
|Authors:||Liew, S.C. |
|Citation:||Liew, S.C.,Orlic, I.,Tang, S.M. (1995-09-02). PIXE tomographic reconstruction of elemental distributions using an iterative maximum-likelihood method. Nuclear Inst. and Methods in Physics Research, B 104 (1-4) : 222-227. ScholarBank@NUS Repository.|
|Abstract:||We have developed a computer program for PIXE tomographic reconstruction of trace elemental distributions using the maximum-likelihood expectation-maximization (MLEM) algorithm. This algorithm is based on the exact stochastic model of X-ray yield measurements. Energy loss of the incident particles and attenuation of the X-ray photons are incorporated into the reconstruction algorithm so quantitatively accurate trace elemental concentrations can be obtained. The reconstruction algorithm has been tested using calculated X-ray yields generated from a micro-PIXE line scan simulation program. This algorithm is capable of reconstructing elemental distributions using only four angular views of the sample. © 1995.|
|Source Title:||Nuclear Inst. and Methods in Physics Research, B|
|Appears in Collections:||Staff Publications|
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