| 1. |
- Kaufmann, Henry C, et al.
(författare)
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REX: A Computer Program for PIXE Spectrum Resolution of Aerosols
- 1976
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Ingår i: Advances in X-Ray Analysis. ; 19, s. 355-366
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Tidskriftsartikel (refereegranskat)abstract
- REX is a Fortran program for analysis of spectra obtained in PIXE analysis. The underlying model is still under development; however, one year of experience has demonstrated REX’s capability to be a fast reliable tool. The modeling of the different components and effects of the physical model is briefly discussed. Evidence is shown that secondary effects mostly due to Compton-scattering in and around the detector are important factors. In order to assure that heavy elements are recorded with sufficient sensitivity during short bombardment times, low energy X-rays are suppressed but not completely absorbed by use of a Mylar absorber with a hole. Such an absorber sometimes introduces severe problems for other techniques of spectrum analysis. However, to REX there is only the job to find the transmission curve of the absorber.
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| 2. |
- Kaufmann, Henry C., et al.
(författare)
-
REX - A Computer Programme for PIXE Analysis
- 1977
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Ingår i: Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment. - 0167-5087. ; 142:1-2, s. 251-257
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Tidskriftsartikel (refereegranskat)abstract
- The implementation of a physics-based model for non-linear least-squares analysis of proton-induced X-ray emission spectra via a Fortran programme REX is discussed. The modelling of distinct spectral components and of the physical effects involved is briefly discussed. Results are presented in graphical and tabular form. The limitations of the present model are discussed and future refinements indicated.
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