Spectroscopy and Spectral Analysis, Volume. 40, Issue 12, 3930(2020)
Research on Adaptive Peak Detection of X-Ray Fluorescence Spectrum With Wavelet Transform and Derivative Method
Figures & Tables(9)
Fig. 2. Peak-finding results of first-order derivative method
(a): Peak-finding results without smoothing; (b): Peak-finding results after mean smoothing-window size is 5
Fig. 4. Wavelet transform coefficients when the decomposition scale changes from 1 to 8
Fig. 5. Peak-finding results by continuous wavelet transform method
Fig. 6. Peak-finding by adaptive method based on derivative and wavelet transform
(a): Peak-finding results for scale 1; (b): Union of peak-finding results
Table 1. The content of elements in standard sample 1
View tableView in ArticleTable 1. The content of elements in standard sample 1
元素 含量/% 元素 含量/% 元素 含量/% 元素 含量/% 元素 含量/% Na 0.35 Cl 0.003 7 Mn 0.017 As 0.000 14 Pb 0.000 87 MgO 2.01 K 4.16 Fe 7.6 Sr 0.009 Nb 0.001 43 SiO2 59.23 Ca 0.6 Co 0.002 1 Zr 0.009 6 Th 0.001 28 Al 18.82 Ti 0.4 Ni 0.003 7 Sn 0.000 2 Rb 0.020 5 P 0.069 V 0.008 8 Cu 0.004 2 Ba 0.045 Ga 0.002 6 S 0.006 Cr 0.009 9 Zn 0.005 5 W 0.000 079
Table 2. Peak-finding results for wavelet transform coefficient spectrum with different decomposition scale
View tableView in ArticleTable 2. Peak-finding results for wavelet transform coefficient spectrum with different decomposition scale
分解
尺度峰数量 分解
尺度峰数量 分解
尺度峰数量 分解
尺度峰数量 1 22 9 30 17 24 25 19 2 36 10 32 18 29 26 20 3 38 11 28 19 26 27 28 4 45 12 28 20 28 28 22 5 37 13 27 21 30 29 17 6 33 14 28 22 25 30 23 7 32 15 29 23 22 31 24 8 32 16 28 24 33 32 20
Table 3. Results of peak-finding
View tableView in ArticleTable 3. Results of peak-finding
道址 对应
元素Scale 道址 对应
元素Scale 道址 对应
元素Scale 142 Mg 2 569 Ba 1 1 090 W 3 179 Al 1 575 Ti 1 1 117 Zn 2 210 Si 1 632 V 2 1 202 Ga 21 247 P 4 692 Cr 2 1 382 As 30 299 S 4 757 Mn 2 1 387 Pb 30 328 Cl 8 823 Fe 1 1 660 Th 6 419 K 1 902 Co 1 1 744 Rb 10 452 Sn 1 963 Ni 3 1 911 Sr 10 466 Ca 1 1 047 Cu 9
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Xue-yuan WANG, Jian-feng HE, Lin LIU, Feng-jun NIE. Research on Adaptive Peak Detection of X-Ray Fluorescence Spectrum With Wavelet Transform and Derivative Method[J]. Spectroscopy and Spectral Analysis, 2020, 40(12): 3930
Paper Information
Category: Research Articles
Received: Sep. 18, 2019
Accepted: --
Published Online: Jun. 18, 2021
The Author Email: Xue-yuan WANG (wangxueyuan@ecit.cn)
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