Ellis

B
U
0 MWd/kgHE
10 MWd/kgHE
20 MWd/kgHE
30 MWd/kgHE
40 MWd/kgHE
Table I. Temperature and Boron Reactivity Effects (%) [Upper Value RRC-KI (TVS-M) and
Lower Value ORNL (HELIOS-1.4)]
Reactivity
Effect
20 to 280C;
0 ppm B
20 to 280C;
1200 ppm B
0 to 1200 ppm
B @20C
0 to 1200 ppm
B @280C
20 to 280C;
0 ppm B
20 to 280C;
1200 ppm B
0 to 1200 ppm
B @20C
0 to 1200 ppm
B @280C
20 to 280C;
0 ppm B
20 to 280C;
1200 ppm B
0 to 1200 ppm
B @20C
0 to 1200 ppm
B @280C
20 to 280C;
0 ppm B
20 to 280C;
1200 ppm B
0 to 1200 ppm
B @20C
0 to 1200 ppm
B @280C
20 to 280C;
0 ppm B
20 to 280C;
1200 ppm B
0 to 1200 ppm
B @20C
0 to 1200 ppm
B @280C
3.8/2.8/U-3.7
Island MOX
-2.35
-2.37
+0.42
+0.41
-11.77
-11.74
-8.99
-8.95
-3.00
-3.07
+0.37
+0.36
-12.52
-12.52
-9.15
-9.09
-3.33
-3.34
+0.57
+0.69
-13.81
-13.91
-9.91
-9.89
-3.34
-3.22
+1.12
+1.46
-15.36
-15.59
-10.90
-10.91
-3.10
-2.77
+2.00
+2.60
-17.11
-17.44
-12.02
-12.07
4.2/3.0/2.0
Full MOX
-2.62
-2.76
+0.07
-0.09
-10.92
-10.76
-8.23
-8.09
-3.11
-3.20
+0.17
+0.09
-11.81
-11.66
-8.53
-8.37
-3.37
-3.38
+0.41
+0.48
-13.11
-13.05
-9.33
-9.20
-3.35
-3.20
+0.97
+1.25
-14.63
-14.68
-10.30
-10.22
-3.12
-2.77
+1.79
+2.33
-16.30
-16.46
-11.39
-11.36
4
4.4/3.2/2.0
Full MOX
-2.63
-2.76
+0.04
-0.13
-10.86
-10.68
-8.19
-8.05
-3.10
-3.21
+0.13
+0.04
-11.72
-11.56
-8.48
-8.31
-3.36
-3.39
+0.38
+0.41
-13.00
-12.92
-9.26
-9.11
-3.35
-3.24
+0.91
+1.16
-14.49
-14.51
-10.23
-10.12
-3.12
-2.82
+1.72
+2.20
-16.14
-16.25
-11.30
-11.23
4.4/3.0/2.0
Full MOX
-2.63
-2.76
+0.06
-0.11
-10.90
-10.72
-8.21
-8.07
-3.09
-3.21
+0.15
+0.06
-11.77
-11.61
-8.52
-8.34
-3.36
-3.38
+0.40
+0.44
-13.06
-12.98
-9.30
-9.15
-3.34
-3.22
+0.94
+1.20
-14.56
-14.58
-10.27
-10.17
-3.11
-2.79
+1.75
+2.26
-16.23
-16.34
-11.37
-11.29
4.4/3.0/2.4
Full MOX
-2.65
-2.77
+0.01
-0.15
-10.82
-10.64
-8.16
-8.01
-3.11
-3.22
+0.10
+0.02
-11.67
-11.52
-8.45
-8.28
-3.38
-3.40
+0.35
+0.39
-12.95
-12.87
-9.23
-9.09
-3.37
-3.25
+0.87
+1.13
-14.45
-14.47
-10.20
-10.09
-3.15
-2.83
+1.68
+2.18
-16.10
-16.22
-11.27
-11.21
U:3.7/3.3
UO2
-2.12
-2.29
+0.69
+0.51
-12.03
-12.05
-9.23
-9.24
-2.79
-2.99
+0.63
+0.48
-12.76
-12.79
-9.34
-9.31
-3.10
-3.24
+0.84
+0.84
-14.04
-14.18
-10.10
-10.10
-3.10
-3.10
+1.43
+1.65
-15.62
-15.89
-11.09
-11.14
-3.00
-2.62
+2.17
+2.86
-17.45
-17.78
-12.28
-12.31