Ze He, Ning Huang, Peng Wang, Zihan Cheng, Bo Peng. Simulation study of full-field X-ray fluorescence imaging with a pinhole camera[J]. High Power Laser and Particle Beams, 2021, 33(11): 116001
- High Power Laser and Particle Beams
- Vol. 33, Issue 11, 116001 (2021)
Fig. 1. The principle of FF-XRF imaging based on pinhole
Fig. 2. The mean free path of different materials in the range of 1-30 keV
Fig. 3. Sharpness and isoplanatism of PSF
Fig. 4. Six different pinhole mask structures
Fig. 5. PSF with different aperture types at the pinhole diameter of 50 μm, 100 μm, 200 μm and 400 μm
Fig. 6. MTF with different aperture types at the pinhole diameter of 50 μm, 100 μm, 200 μm and 400 μm
Fig. 7. Images of the original plane source and the PSF of different energy
Fig. 8. Energy spectra of four characteristic X-rays
Fig. 9. The pattern composed of different characteristic X-rays
Fig. 10. Pattern composed of different characteristic X-rays after image processing
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Table 1. Sharpness and isoplanatism of PSF with different pinhole mask structures at the pinhole diameter of 50 μm, 100 μm, 200 μm and 400 μm
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Table 2. Cut-off frequency (lp/mm) of MTF with different pinhole mask structures at the pinhole diameter of 50 μm, 100 μm, 200 μm and 400 μm
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Table 3. The performance of image processing
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