High Power Laser and Particle Beams, Volume. 33, Issue 11, 116001(2021)
Simulation study of full-field X-ray fluorescence imaging with a pinhole camera
Figures & Tables(13)
Fig. 2. The mean free path of different materials in the range of 1-30 keV
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. 10. Pattern composed of different characteristic X-rays after image processing
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
View tableView in ArticleTable 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
diameter/μm pinhole mask structures left sharpness/μm right sharpness/μm isoplanatism/μm 50 (a) straight hole model 65 65 98 (b) double cone hole model 65 65 64 (c) double cone and straight hole model 52 52 64 (d) right cone hole model 65 65 66 (e) left cone hole model 65 65 66 (f) penumbra hole model 52 52 66 100 (a) straight hole model 65 65 200 (b) double cone hole model 78 78 100 (c) double cone and straight hole model 65 65 97 (d) right cone hole model 78 78 99 (e) left cone hole model 78 78 99 (f) penumbra hole model 65 65 97 200 (a) straight hole model 78 78 399 (b) double cone hole model 78 78 205 (c) double cone and straight hole model 65 65 198 (d) right cone hole model 78 78 206 (e) left cone hole model 78 78 205 (f) penumbra hole model 65 65 198 (a) straight hole model 78 78 800 (b) double cone hole model 104 104 411 400 (c) double cone and straight hole model 78 78 399 (d) right cone hole model 104 104 411 (e) left cone hole model 104 104 411 (f) penumbra hole model 78 78 398
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
View tableView in ArticleTable 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
pinhole mask structure diameter/μm 50 100 200 400 (a) straight hole model 6.9 3.7 2.0 1.0 (b) double cone hole model 10.0 6.7 3.6 1.9 (c) double cone and straight hole model 10.1 6.9 3.7 2.0 (d) right cone hole model 10.1 6.8 3.6 1.9 (e) left cone hole model 10.1 6.8 3.6 1.9 (f) penumbra hole model 10.2 6.9 3.7 2.0
Table 3. The performance of image processing
View tableView in ArticleTable 3. The performance of image processing
energy/keV statistical error/% original SNR/dB processed SNR/dB iterations 6.4 1.2 18.7 26.2 2 8.0 0.8 18.2 26.9 4 9.8 0.7 20.2 27.2 4 12.6 1.2 18.8 26.8 4
Tools
Get Citation
Copy Citation Text
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
Paper Information
Category: Nuclear Science and Engineering
Received: Jul. 19, 2021
Accepted: Nov. 8, 2021
Published Online: Dec. 1, 2021
The Author Email: Huang Ning (huang_ning@scu.edu.cn)
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20