338
Appendix A4: 235 U-Fueled ADS Core in Medium-Fast Spectrum
Table A4.51 Measured prompt neutron decay constants α [s −1 ] deduced by PNS and Feynman-α
methods and subcriticality [$] in dollar units (Ref. [1])
Case 5-F-2 (FFAG acc.) (ρ pcm, MCNP = 6283.4 ± 5.9 [pcm])
Detector PNS method
Feynman-α method Area ρ $ [$]
Extended area ρ $ [$]
BF-3 #1 1578.56 ± 8.75
1396.77 ± 4.37
4.9089 ± 0.0238
8.4536 ± 0.0893
BF-3 #2 1757.57 ± 6.66
1578.06 ± 9.59
7.4737 ± 0.0473 13.4353 ± 0.1328
BF-3 #3 1527.84 ± 10.921 1275.66 ± 4.17
4.3431 ± 0.0228
7.5644 ± 0.0959
Table A4.52 Measured prompt neutron decay constants α [s −1 ] deduced by PNS and Feynman-α
methods and subcriticality [$] in dollar units (Ref. [1])
Case 5-F-3 (FFAG acc.) (ρ pcm, MCNP = 6402.4 ± 5.9 [pcm])
Detector PNS method
Feynman-α method Area ρ $ [$]
Extended area ρ $ [$]
BF-3 #1 1634.83 ± 10.43 1440.75 ± 4.85
4.9278 ± 0.0345
8.6750 ± 0.1175
BF-3 #2 1835.08 ± 9.22
1647.52 ± 6.36
7.6800 ± 0.0770 13.3188 ± 0.2001
BF-3 #3 1609.89 ± 11.47 1320.91 ± 4.98
4.3497 ± 0.0328
7.8715 ± 0.1169
Table A4.53 Measured prompt neutron decay constants α [s −1 ] deduced by PNS and Feynman-α
methods and subcriticality [$] in dollar units (Ref. [1])
Case 5-F-4 (FFAG acc.) (ρ pcm, MCNP = 6449.0 ± 5.9 [pcm])
Detector PNS method
Feynman-α method Area ρ $ [$]
Extended area ρ $ [$]
BF-3 #1 1668.59 ± 10.09 1457.23 ± 4.78
5.0659 ± 0.0313
9.0312 ± 0.1142
BF-3 #2 1882.18 ± 9.29
1690.14 ± 7.51
7.8179 ± 0.0690 13.7674 ± 0.1928
BF-3 #3 1637.55 ± 11.21 1348.49 ± 5.03
4.4292 ± 0.0294
8.0330 ± 0.1122
Table A4.54 Measured prompt neutron decay constants α [s −1 ] deduced by PNS and Feynman-α
methods and subcriticality [$] in dollar units (Ref. [1])
Case 5-F-5 (FFAG acc.) (ρ pcm, MCNP = 18537.6 ± 6.2 [pcm])
Detector PNS method
Feynman-α method Area ρ $ [$]
Extended area ρ $ [$]
BF-3 #1 2395.17 ± 16.79 1953.19 ± 6.48
8.7452 ± 0.0864 17.0252 ± 0.3619
BF-3 #2 2733.48 ± 33.44 2400.04 ± 17.18
22.7337 ± 0.6236 43.2796 ± 1.9802
BF-3 #3 2780.67 ± 26.47 2115.21 ± 9.68
13.4331 ± 0.2333 32.6171 ± 1.1065
A4.4 Reaction Rates
A4.4.1 Core Configurations
See (Figs. A4.7, A4.8 and A4.9).
Appendix A4: 235 U-Fueled ADS Core in Medium-Fast Spectrum
Table A4.51 Measured prompt neutron decay constants α [s −1 ] deduced by PNS and Feynman-α
methods and subcriticality [$] in dollar units (Ref. [1])
Case 5-F-2 (FFAG acc.) (ρ pcm, MCNP = 6283.4 ± 5.9 [pcm])
Detector PNS method
Feynman-α method Area ρ $ [$]
Extended area ρ $ [$]
BF-3 #1 1578.56 ± 8.75
1396.77 ± 4.37
4.9089 ± 0.0238
8.4536 ± 0.0893
BF-3 #2 1757.57 ± 6.66
1578.06 ± 9.59
7.4737 ± 0.0473 13.4353 ± 0.1328
BF-3 #3 1527.84 ± 10.921 1275.66 ± 4.17
4.3431 ± 0.0228
7.5644 ± 0.0959
Table A4.52 Measured prompt neutron decay constants α [s −1 ] deduced by PNS and Feynman-α
methods and subcriticality [$] in dollar units (Ref. [1])
Case 5-F-3 (FFAG acc.) (ρ pcm, MCNP = 6402.4 ± 5.9 [pcm])
Detector PNS method
Feynman-α method Area ρ $ [$]
Extended area ρ $ [$]
BF-3 #1 1634.83 ± 10.43 1440.75 ± 4.85
4.9278 ± 0.0345
8.6750 ± 0.1175
BF-3 #2 1835.08 ± 9.22
1647.52 ± 6.36
7.6800 ± 0.0770 13.3188 ± 0.2001
BF-3 #3 1609.89 ± 11.47 1320.91 ± 4.98
4.3497 ± 0.0328
7.8715 ± 0.1169
Table A4.53 Measured prompt neutron decay constants α [s −1 ] deduced by PNS and Feynman-α
methods and subcriticality [$] in dollar units (Ref. [1])
Case 5-F-4 (FFAG acc.) (ρ pcm, MCNP = 6449.0 ± 5.9 [pcm])
Detector PNS method
Feynman-α method Area ρ $ [$]
Extended area ρ $ [$]
BF-3 #1 1668.59 ± 10.09 1457.23 ± 4.78
5.0659 ± 0.0313
9.0312 ± 0.1142
BF-3 #2 1882.18 ± 9.29
1690.14 ± 7.51
7.8179 ± 0.0690 13.7674 ± 0.1928
BF-3 #3 1637.55 ± 11.21 1348.49 ± 5.03
4.4292 ± 0.0294
8.0330 ± 0.1122
Table A4.54 Measured prompt neutron decay constants α [s −1 ] deduced by PNS and Feynman-α
methods and subcriticality [$] in dollar units (Ref. [1])
Case 5-F-5 (FFAG acc.) (ρ pcm, MCNP = 18537.6 ± 6.2 [pcm])
Detector PNS method
Feynman-α method Area ρ $ [$]
Extended area ρ $ [$]
BF-3 #1 2395.17 ± 16.79 1953.19 ± 6.48
8.7452 ± 0.0864 17.0252 ± 0.3619
BF-3 #2 2733.48 ± 33.44 2400.04 ± 17.18
22.7337 ± 0.6236 43.2796 ± 1.9802
BF-3 #3 2780.67 ± 26.47 2115.21 ± 9.68
13.4331 ± 0.2333 32.6171 ± 1.1065
A4.4 Reaction Rates
A4.4.1 Core Configurations
See (Figs. A4.7, A4.8 and A4.9).