Honglong Zheng, Xianguo Tuo, Jiayuan Gou, Yao Wu, Wei Zuo, Yufei Guo, Lin He, Yanfang Liu, Cong Huang, Linfeng Yang, Wei Liu. A passive efficiency calibration method with Monte Carlo simulation in segmented gamma scanning[J]. High Power Laser and Particle Beams, 2020, 32(4): 046002
- High Power Laser and Particle Beams
- Vol. 32, Issue 4, 046002 (2020)
Fig. 1. SGS measurement of nuclear waste drum
Fig. 2. MCNP model of an HPGe detector
Fig. 3. Calculation model of SGS efficiency
Fig. 4. Distribution of segment efficiency
Fig. 5. SGS experimental measurement
Fig. 6. Positions of point source in the drum
Fig. 7. Efficiency matrices (aluminum silicate sample)
Fig. 8. Comparison of reconstructed activity with two sets of parameters (F1 and F2 represent parameters calibrated by aluminum silicate and wood fiber respectively, as shown in Table 1 )
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Table 1. Parameters of efficiency function
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Table 2. Reconstructed activities and errors of 137Cs and 60Co
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