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Fission parameters 235U 239Pu
E/fission (MeV) 193.5 198.9
<E!> above threshold (MeV)
2.94 2.84
N!/fission above threshold
1.92 1.45
<"int> (10-43 cm2) 3.20 2.76
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Activité (kBq)
Energy (MeV)
60 Co 4 1,17 + 1,33
137 Cs 4 0,662
22 Na 4 1,2 + e+ 2x0,511
Am-Be 3330 4,4 gamma & 2,2 neutron
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Reactor Core
NUCIFER P.Durande-Ayme @ TRTR-IGORR joint meeting 2005
Pth (MW) 70
Fresh fuel U3Si2Al plates
Enrichment (% of 235U) 20
Fuel replacement 1/7th every 20d
Core dimensions (cm) 57 x 57 x 60
Distance from core center (m)
7
!e flux at det. center (cm-2.s-1)
2.3 1012
!e int/day in Nucifer (1m3)
~1000
muon flux attenuation 2.7
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Pth (MW) 57
Fresh fuel UAl plates
Enrichment (% of 235U) 93 Fuel replacement Total after 50
days
Core dimensions (cm) 80 (f) x 28 (H)
Distance from core center (m)
9
!e flux at det. center (cm-2.s-1)
8.4 1011
!e int/day in Nucifer) ~250
muon flux attenuation 2-3
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