Science and Technology of Nuclear Installations

Research Article

Monte Carlo Few-Group Constant Generation for CANDU 6 Core Analysis

Table 6

Comparison of normalized channel power distribution for the control-device-free core.
1.370 1.370 1.350 1.370 1.330 1.310 1.220 1.100 0.944 0.754 0.554
0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.04 0.04
−0.11 −0.14 −0.07 −0.14 −0.18 −0.11 −0.14 −0.09 −0.28 −0.40 0.11
0.18 0.14 0.17 −0.27 −0.13 0.42 0.35 −0.02 −0.34 −0.49 0.13
1.370 1.360 1.350 1.360 1.320 1.280 1.190 1.070 0.918 0.729 0.530
0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.04 0.04
−0.19 −0.17 −0.12 −0.18 −0.17 −0.08 −0.16 0.00 −0.18 −0.26 0.24
0.09 0.09 0.11 −0.25 −0.27 0.28 0.37 −0.12 −0.36 −0.43 0.20
1.350 1.350 1.330 1.340 1.340 1.240 1.140 1.020 0.867 0.682 0.496
0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.04 0.05
−0.22 −0.14 −0.17 −0.14 −0.06 −0.06 −0.16 −0.14 −0.16 0.12 0.85
0.02 0.09 0.03 −0.33 −0.29 0.20 0.28 −0.26 −0.43 −0.09 0.83
1.330 1.330 1.310 1.310 1.290 1.180 1.060 0.950 0.795 0.625  
0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.04 0.04  
−0.20 −0.18 −0.17 −0.21 −0.02 0.05 −0.03 0.02 0.04 0.73  
0.00 0.01 −0.03 −0.36 −0.32 0.23 0.32 −0.32 −0.21 0.56  
1.310 1.300 1.330 1.310 1.230 1.100 0.980 0.861 0.707 0.548  
0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.04 0.04  
−0.20 −0.15 −0.07 −0.04 0.02 −0.02 −0.04 0.12 0.44 1.34  
−0.07 −0.05 −0.05 −0.24 −0.36 0.16 0.28 −0.39 0.06 1.18  
1.310 1.300 1.270 1.230 1.140 1.010 0.884 0.756 0.612   
0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.04 0.04   
0.02 0.02 −0.02 −0.09 −0.06 −0.03 0.02 0.14 0.93   
0.00 −0.01 −0.08 −0.31 −0.28 0.20 0.27 −0.21 0.72   
1.220 1.210 1.170 1.120 1.030 0.903 0.771 0.637 0.499   
0.03 0.03 0.03 0.03 0.03 0.03 0.04 0.04 0.05   
−0.14 −0.23 −0.19 −0.19 −0.14 −0.16 −0.13 0.41 1.39   
−0.23 −0.32 −0.30 −0.43 −0.40 0.03 0.22 0.21 1.24   
1.100 1.070 1.030 0.977 0.887 0.769 0.640 0.520    
0.03 0.03 0.03 0.03 0.03 0.04 0.04 0.05    
−0.14 −0.09 −0.13 −0.11 −0.13 −0.04 0.32 0.78    
−0.26 −0.22 −0.26 −0.34 −0.33 −0.05 0.37 0.86    
0.929 0.908 0.865 0.806 0.719 0.610 0.504     
0.03 0.03 0.03 0.04 0.04 0.04 0.05     
−0.13 −0.14 −0.12 0.01 −0.04 0.32 1.00     
−0.26 −0.27 −0.25 −0.16 −0.20 0.23 0.96     
0.736 0.715 0.674 0.627 0.544 0.449      
0.04 0.04 0.04 0.04 0.04 0.05      
0.03 0.04 0.33 0.67 0.57 1.10      
−0.08 −0.07 0.25 0.71 0.72 1.00      
0.539 0.517 0.487        
0.04 0.05 0.05      Rel. S.D. (%)
1.24 1.23 2.22      
1.26 1.26 2.33      
= McCARD power, Rel. S.D. (%) = relative standard deviation of .
= McCARD/SCAN power by infinite medium spectrum.
= McCARD/SCAN power by critical spectrum.
(%) = ( − )/   100, and (%) = ( − )/   100.