Spectroscopy and Spectral Analysis, Volume. 42, Issue 5, 1400(2022)
Effective Atomic Number Measurement of Energetic Material Using Photon Counting Spectral Computed Tomography
Figures & Tables(5)
Table 1. Chemical formulas, equivalent atomic numbers and linear attenuation coefficient ratios of calibration materials in the first experiment
View tableView in ArticleTable 1. Chemical formulas, equivalent atomic numbers and linear attenuation coefficient ratios of calibration materials in the first experiment
标定物 化学式 等效原子序数 低能区衰减/cm-1 高能区衰减/cm-1 衰减比值R 尼龙6 —[NH—(CH2)5—CO]n— 6.600 8 0.185 4±0.002 8 0.169 9±0.002 9 1.091 2±0.004 0 聚四氟乙烯 —[CF2—CF2]n— 8.616 3 0.364 9±0.002 9 0.312 3±0.002 8 1.168 4±0.007 1 铝 Al 13 0.796 9±0.004 0 0.536 5±000 28 1.485 4±0.001 9
Table 2. The measured linear attenuation ratios, equivalent atomic numbers and relative errors for materials
View tableView in ArticleTable 2. The measured linear attenuation ratios, equivalent atomic numbers and relative errors for materials
零件材料 低能区衰减/cm-1 高能区衰减/cm-1 衰减比值 标定的等效原子序数 相对误差/% 钛 2.553 5±0.033 8 1.369 0±0.017 2 1.865 2±0.001 9 16.323 2±0.014 4 25.803 6 有机玻璃 0.192 8±0.002 0 0.175 4±0.001 8 1.099 2±0.004 1 6.894 0±0.128 2 0.691 4 未知材料 0.244 9±0.002 9 0.213 8±0.002 3 1.145 5±0.002 0 8.132 1±0.045 9 -
Table 3. The measured linear attenuation ratios, equivalent atomic numbers and relative errors for materials
View tableView in ArticleTable 3. The measured linear attenuation ratios, equivalent atomic numbers and relative errors for materials
零件组成 低能区衰减/cm-1 高能区衰减/cm-1 衰减比值 测量的等效原子序数 相对误差/% 铝 0.789 8±0.004 7 0.528 8±0.003 6 1.494±0.002 7 13.093 5±0.027 2 0.719 2 聚四氟乙烯 0.365 8±0.003 5 0.314 2±0.004 2 1.164 2±0.006 6 8.544 0±0.136 9 0.839 1 22中的主体 0.298 7±0.006 2 0.261 32±0.004 8 1.142 8±0.004 9 8.068 1±0.115 7 - 22中的杂质 0.955 8±0.289 0 0.534 0±0.124 2 1.789 4+0.181 4 15.733 2±1.589 2 - 22F 0.297 7±0.001 5 0.263 5±0.001 8 1.129 8±0.004 0 7.753 5±0.102 7 - F2314 0.412 0±0.003 1 0.308 7±0.003 0 1.334 6±0.008 7 11.281 1±0.112 1 - 22F+F2314中的22F 0.306 9±0.002 4 0.272 5±0.002 2 1.126 2±0.004 0 7.660 5±0.105 0 1.119 9 22F+F2314中的F2314 0.443 1±0.002 3 0.330 1±0.001 7 1.342 3±0.001 7 11.379 4±0.021 41 0.871 4
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Ya-fei YANG, Cai-xin ZHANG, Hua CHEN, Wei-bin ZHANG, Yong TIAN, Ding-hua ZHANG, Kui-dong HUANG. Effective Atomic Number Measurement of Energetic Material Using Photon Counting Spectral Computed Tomography[J]. Spectroscopy and Spectral Analysis, 2022, 42(5): 1400
Paper Information
Category: Research Articles
Received: Feb. 3, 2021
Accepted: --
Published Online: Nov. 10, 2022
The Author Email: YANG Ya-fei (yangyaf@mail.nwpu.edu.cn)
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