Feng Rong, Ying Liang, Wei Xu. Design of Dual Energy Analysis Grating[J]. Acta Optica Sinica, 2017, 37(11): 1105001
- Acta Optica Sinica
- Vol. 37, Issue 11, 1105001 (2017)
Fig. 1. Dual energy X-ray grating phase contrast imaging system
Fig. 2. Distribution of fluorescence transmittance in CsI∶Tl continuous layer
Fig. 3. Relationship between the thickness of CsI and fluorescence transmittance at different energy levels
Fig. 4. Absorption coefficient of Bi at differentenergies
Fig. 5. Relationship between the thickness of Bi and the transmittance of light intensity at different energies
Fig. 6. Structure and materials of dual energy analysis grating. (a) Top view; (b) front view
Fig. 7. Imaging fringe. (a) X-ray energy is 20 keV; (b) X-ray energy is 60 keV
Fig. 8. Simulation results. (a) First order derivative imaging of the sphere phase; (b) first order derivative distribution of the sphere phase at the corresponding cross section horizontal line
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