Yu-xuan ZHU, Jing-bin LU, Xiao-fan ZHAO, Xiao-yan LIU, Wei-wei CUI, Wei LI, Yu-sa WANG, Zhong-hua LÜ, Yong CHEN. An Application of Lucy Richardson Iterative in X-Ray Fluorescence Analysis[J]. Spectroscopy and Spectral Analysis, 2021, 41(9): 2823
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 9, 2823 (2021)
Fig. 1. A detector package of CCD236
Each detectoris divided into four quadrants
Each detectoris divided into four quadrants
Fig. 2. The RSP of CCD236 detector
Fig. 3. Schematic diagram and picture of some device of spectrum measurement
Fig. 4. Spectrum of background
Fig. 5. Spectrum measurement of 55Fe X-ray source and iteration results
The blue dotted line and red star dotted line are the iteration results without and with the background, respectively
The blue dotted line and red star dotted line are the iteration results without and with the background, respectively
Fig. 6. Curve of convergence factor ε with iteration times
Fig. 7. Curve of FWHM with iteration times
Fig. 8. Results of 55Fe spectrum iterative inverse
Fig. 9. Experimental and convolution spectrum. The spectra are normalized by area
Fig. 10. Spectrum measurement of material by CCD236 detector; The spectrum is normalized by area
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Table 1. Analysis results of element composition
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Table 2. Analysis results of Ag fluorescence yield
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