NUCLEAR TECHNIQUES, Volume. 46, Issue 11, 110203(2023)
Physical design of conversion screens for thermal neutron transmission imaging
Figures & Tables(9)
Fig. 1. Structure diagram of thermal neutron transmission imaging system
Fig. 2. Diagram of Siemens star indicator model for thermal neutron imaging
Fig. 3. Thermal neutron radiograph of Siemens star indicator with 40 µm thick LiF(ZnS) conversion screen (color online)
Fig. 5. Thermal neutron radiograph of Siemens star indicator and LSF at the edge of the fourth ring slit (LiF(ZnS) conversion screen)
Fig. 6. Spatial resolution distribution of thermal neutron radiograph based on the LiF(ZnS) and LiF(GOS) image conversion screens
Fig. 7. Neutron-photon conversion efficiency distribution based on the LiF(ZnS) and LiF(GOS) image conversion screens
Table 1. Spatial resolution of thermal neutron radiograph based on the LiF(ZnS) image conversion screen
View tableView in ArticleTable 1. Spatial resolution of thermal neutron radiograph based on the LiF(ZnS) image conversion screen
像转换屏厚度
Thickness of image conversion screen / μm
空间分辨率 Spatial resolution / μm 狭缝1 Slit1 狭缝2 Slit2 狭缝3 Slit3 狭缝4 Slit4 狭缝5 Slit5 狭缝6 Slit6 平均 Average 5 (L) 35.31 37.35 35.12 35.51 35.07 36.66 35.67 (R) 35.37 35.46 35.47 36.71 34.85 35.21 10 (L) 42.28 39.84 32.14 35.54 33.03 34.49 37.88 (R) 40.36 34.31 45.74 41.35 41.29 34.22 20 (L) 37.04 43.27 38.72 37.26 37.91 37.16 39.04 (R) 46.69 37.37 36.69 39.27 38.73 38.37 30 (L) 36.74 42.25 49.77 42.69 43.84 45.06 42.92 (R) 44.20 42.74 42.28 41.10 41.39 42.93 40 (L) 47.53 47.90 46.69 43.46 47.04 47.39 47.01 (R) 48.73 47.77 46.89 45.50 48.99 46.18 50 (L) 49.97 54.83 51.77 50.04 50.19 50.47 51.10 (R) 49.12 56.05 50.36 47.01 51.34 52.00 60 (L) 56.78 57.08 51.67 53.48 58.44 58.58 55.19 (R) 56.69 51.33 53.94 51.21 54.42 58.60 70 (L) 56.63 55.05 58.25 57.53 59.39 60.25 59.64 (R) 56.01 60.79 60.88 65.64 58.93 66.27 80 (L) 51.55 68.48 62.94 62.55 65.69 66.22 63.19 (R) 48.12 60.65 65.16 70.80 64.76 71.38 90 (L) 59.73 67.98 62.17 70.90 66.11 77.56 68.80 (R) 69.83 66.84 65.64 72.77 73.42 72.67 100 (L) 57.43 83.27 84.22 71.82 82.32 79.55 72.91 (R) 58.66 67.22 66.72 68.82 78.68 76.26
Table 2. Spatial resolution of thermal neutron radiograph based on the LiF(GOS) image conversion screen
View tableView in ArticleTable 2. Spatial resolution of thermal neutron radiograph based on the LiF(GOS) image conversion screen
像转换屏厚度
Thickness of image
conversion screen / μm
空间分辨率 Spatial resolution / μm 狭缝1 Slit1 狭缝2 Slit2 狭缝3 Slit3 狭缝4 Slit4 狭缝5 Slit5 狭缝6 Slit6 平均 Average 5 (L) 38.81 37.75 40.06 36.79 33.76 29.34 35.09 (R) 30.96 27.01 37.15 35.27 41.56 32.56 10 (L) 39.21 39.84 30.89 35.95 37.13 41.99 37.22 (R) 42.32 32.35 32.69 38.12 37.16 38.99 20 (L) 33.65 36.72 33.97 45.21 40.11 39.58 38.65 (R) 40.50 37.22 37.52 40.58 40.55 38.21 30 (L) 35.21 50.86 44.04 38.49 42.05 44.30 42.45 (R) 39.32 49.78 39.57 41.03 41.29 43.40 40 (L) 41.93 44.97 46.91 47.85 48.56 46.54 46.34 (R) 41.65 48.19 44.76 53.43 46.08 45.18 50 (L) 38.66 55.28 54.35 43.36 52.04 50.91 50.46 (R) 61.64 52.10 46.92 51.60 48.91 49.75 60 (L) 53.30 53.99 55.46 52.63 57.63 55.55 54.07 (R) 53.17 55.29 51.93 53.16 54.39 52.31 70 (L) 62.38 58.89 53.01 56.66 56.99 64.65 58.57 (R) 55.87 57.54 57.23 58.02 60.04 61.51 80 (L) 59.51 58.77 61.87 63.60 59.86 59.23 62.20 (R) 68.96 62.10 59.46 65.48 64.46 63.05 90 (L) 59.24 72.71 73.08 68.96 63.00 68.35 66.31 (R) 68.55 60.24 58.45 71.39 67.25 64.50 100 (L) 65.83 68.92 74.52 69.18 69.34 72.62 70.15 (R) 68.14 72.35 69.35 69.74 70.87 70.96
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Xingyu LIU, Xiaoxue YU, Hangzhou LI, Jinqiu PENG, Xu YANG, Kang WU, Xiaohou BAI, Junrun WANG, Zhiyong DENG, Lu WU, Gentao GAO, Guorong WAN, Li LIU, Peng HE, Yun ZHANG, Yu ZHANG, Zeen YAO, Zheng WEI. Physical design of conversion screens for thermal neutron transmission imaging[J]. NUCLEAR TECHNIQUES, 2023, 46(11): 110203
Paper Information
Category: Research Articles
Received: Feb. 10, 2023
Accepted: --
Published Online: Dec. 23, 2023
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