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Decay Heat Tables
~ Recommended by Atomic Energy Society of Japan ~
| Instantaneous burst fission | Infinite irradiation (1013 sec) | One-year irradiation |
| Table 1 2 3 4 5 | Table 6 7 8 9 10 | Table 11 12 13 14 15 |
| All | Page 1 (0 ~ 8.E+3 sec) | Page 2 (1.E+4 ~ 8.E+8 sec) | Page 3 (1.E+9 ~ 1.E+13 sec) |
Table 1
Tabular Data for Recommended Decay Heat Power for
Pulse Thermal Fission of 235U
| Time | Beta | Uncertainty | Gamma | Uncertainty | Total | Uncertainty |
| (s) | (MeV/s/fission) | (%) | (MeV/s/fission) | (%) | (MeV/s/fission) | (%) |
| 0.0 | 7.690E-1 | 6.9 | 6.008E-1 | 9.9 | 1.370E+0 | 3.7 |
| 1.0E-1 | 7.039E-1 | 6.4 | 5.501E-1 | 9.4 | 1.254E+0 | 3.2 |
| 1.5E-1 | 6.763E-1 | 6.1 | 5.277E-1 | 9.1 | 1.204E+0 | 3.1 |
| 2.0E-1 | 6.511E-1 | 5.9 | 5.080E-1 | 8.8 | 1.159E+0 | 3.1 |
| 3.0E-1 | 6.064E-1 | 5.5 | 4.726E-1 | 8.5 | 1.079E+0 | 3.0 |
| 4.0E-1 | 5.682E-1 | 5.3 | 4.422E-1 | 8.4 | 1.010E+0 | 2.9 |
| 5.0E-1 | 5.351E-1 | 5.0 | 4.157E-1 | 8.3 | 9.509E-1 | 2.9 |
| 6.0E-1 | 5.062E-1 | 4.8 | 3.925E-1 | 8.2 | 8.987E-1 | 2.9 |
| 8.0E-1 | 4.578E-1 | 4.6 | 3.537E-1 | 8.1 | 8.115E-1 | 2.8 |
| 1.0E+0 | 4.188E-1 | 4.3 | 3.222E-1 | 8.1 | 7.410E-1 | 2.8 |
| 1.5E+0 | 3.472E-1 | 4.1 | 2.645E-1 | 7.9 | 6.116E-1 | 2.8 |
| 2.0E+0 | 2.974E-1 | 4.0 | 2.246E-1 | 7.8 | 5.220E-1 | 2.8 |
| 3.0E+0 | 2.312E-1 | 3.9 | 1.724E-1 | 7.3 | 4.036E-1 | 2.7 |
| 4.0E+0 | 1.881E-1 | 3.9 | 1.394E-1 | 6.8 | 3.276E-1 | 2.6 |
| 5.0E+0 | 1.576E-1 | 4.0 | 1.166E-1 | 6.3 | 2.742E-1 | 2.5 |
| 6.0E+0 | 1.346E-1 | 4.0 | 9.994E-2 | 5.8 | 2.346E-1 | 2.5 |
| 8.0E+0 | 1.027E-1 | 4.0 | 7.730E-2 | 5.2 | 1.800E-1 | 2.4 |
| 1.0E+1 | 8.169E-2 | 4.0 | 6.279E-2 | 4.9 | 1.445E-1 | 2.3 |
| 1.5E+1 | 5.215E-2 | 4.0 | 4.261E-2 | 4.4 | 9.476E-2 | 2.3 |
| 2.0E+1 | 3.729E-2 | 3.9 | 3.226E-2 | 4.1 | 6.955E-2 | 2.2 |
| 3.0E+1 | 2.317E-2 | 4.0 | 2.178E-2 | 3.5 | 4.496E-2 | 2.1 |
| 4.0E+1 | 1.670E-2 | 4.1 | 1.652E-2 | 3.1 | 3.323E-2 | 2.1 |
| 5.0E+1 | 1.304E-2 | 4.0 | 1.334E-2 | 2.8 | 2.637E-2 | 2.0 |
| 6.0E+1 | 1.064E-2 | 3.6 | 1.117E-2 | 2.7 | 2.182E-2 | 2.0 |
| 8.0E+1 | 7.655E-3 | 3.7 | 8.348E-3 | 2.5 | 1.600E-2 | 1.9 |
| 1.0E+2 | 5.852E-3 | 2.3 | 6.562E-3 | 1.8 | 1.241E-2 | 1.7 |
| 1.5E+2 | 3.507E-3 | 2.1 | 4.083E-3 | 1.9 | 7.591E-3 | 1.5 |
| 2.0E+2 | 2.432E-3 | 2.2 | 2.855E-3 | 2.0 | 5.286E-3 | 1.3 |
| 3.0E+2 | 1.487E-3 | 2.4 | 1.725E-3 | 2.0 | 3.212E-3 | 1.3 |
| 4.0E+2 | 1.077E-3 | 2.5 | 1.234E-3 | 1.9 | 2.312E-3 | 1.4 |
| 5.0E+2 | 8.508E-4 | 2.8 | 9.714E-4 | 1.7 | 1.822E-3 | 1.5 |
| 6.0E+2 | 7.059E-4 | 2.9 | 8.079E-4 | 1.6 | 1.514E-3 | 1.5 |
| 8.0E+2 | 5.289E-4 | 3.1 | 6.129E-4 | 1.4 | 1.142E-3 | 1.6 |
| 1.0E+3 | 4.232E-4 | 3.1 | 4.981E-4 | 1.4 | 9.213E-4 | 1.6 |
| 1.5E+3 | 2.784E-4 | 3.0 | 3.413E-4 | 1.4 | 6.197E-4 | 1.6 |
| 2.0E+3 | 2.013E-4 | 2.8 | 2.570E-4 | 1.5 | 4.583E-4 | 1.5 |
| 3.0E+3 | 1.202E-4 | 2.4 | 1.664E-4 | 1.8 | 2.865E-4 | 1.5 |
| 4.0E+3 | 8.061E-5 | 2.3 | 1.193E-4 | 2.0 | 1.999E-4 | 1.5 |
| 5.0E+3 | 5.882E-5 | 2.2 | 9.109E-5 | 2.1 | 1.499E-4 | 1.6 |
| 6.0E+3 | 4.570E-5 | 2.3 | 7.252E-5 | 2.2 | 1.182E-4 | 1.6 |
| 8.0E+3 | 3.133E-5 | 2.4 | 4.973E-5 | 2.3 | 8.106E-5 | 1.7 |
Table 1 (continued)
Tabular Data for Recommended Decay Heat Power for
Pulse Thermal Fission of 235U
| Time | Beta | Uncertainty | Gamma | Uncertainty | Total | Uncertainty |
| (s) | (MeV/s/fission) | (%) | (MeV/s/fission) | (%) | (MeV/s/fission) | (%) |
| 1.0E+4 | 2.387E-5 | 2.5 | 3.638E-5 | 2.3 | 6.025E-5 | 1.7 |
| 1.5E+4 | 1.508E-5 | 2.5 | 1.952E-5 | 2.2 | 3.460E-5 | 1.6 |
| 2.0E+4 | 1.101E-5 | 2.4 | 1.223E-5 | 1.9 | 2.324E-5 | 1.5 |
| 3.0E+4 | 7.025E-6 | 2.3 | 6.566E-6 | 1.6 | 1.359E-5 | 1.4 |
| 4.0E+4 | 4.967E-6 | 2.3 | 4.443E-6 | 1.5 | 9.410E-6 | 1.4 |
| 5.0E+4 | 3.686E-6 | 2.2 | 3.336E-6 | 1.4 | 7.022E-6 | 1.3 |
| 6.0E+4 | 2.828E-6 | 2.3 | 2.648E-6 | 1.3 | 5.476E-6 | 1.3 |
| 8.0E+4 | 1.806E-6 | 2.5 | 1.836E-6 | 1.3 | 3.642E-6 | 1.4 |
| 1.0E+5 | 1.260E-6 | 2.6 | 1.376E-6 | 1.3 | 2.636E-6 | 1.4 |
| 1.5E+5 | 6.528E-7 | 2.9 | 8.051E-7 | 1.4 | 1.458E-6 | 1.5 |
| 2.0E+5 | 4.096E-7 | 3.0 | 5.518E-7 | 1.6 | 9.614E-7 | 1.6 |
| 3.0E+5 | 2.218E-7 | 3.4 | 3.387E-7 | 1.8 | 5.605E-7 | 1.7 |
| 4.0E+5 | 1.532E-7 | 3.4 | 2.504E-7 | 1.7 | 4.036E-7 | 1.7 |
| 5.0E+5 | 1.193E-7 | 3.4 | 2.018E-7 | 1.7 | 3.211E-7 | 1.6 |
| 6.0E+5 | 9.869E-8 | 3.2 | 1.698E-7 | 1.5 | 2.685E-7 | 1.5 |
| 8.0E+5 | 7.419E-8 | 2.7 | 1.280E-7 | 1.2 | 2.022E-7 | 1.3 |
| 1.0E+6 | 5.963E-8 | 2.5 | 1.012E-7 | 1.0 | 1.608E-7 | 1.1 |
| 1.5E+6 | 3.998E-8 | 2.2 | 6.390E-8 | 0.8 | 1.039E-7 | 1.0 |
| 2.0E+6 | 2.991E-8 | 2.1 | 4.530E-8 | 0.7 | 7.520E-8 | 0.9 |
| 3.0E+6 | 1.930E-8 | 1.7 | 2.671E-8 | 0.8 | 4.602E-8 | 0.9 |
| 4.0E+6 | 1.377E-8 | 1.4 | 1.758E-8 | 0.9 | 3.135E-8 | 0.8 |
| 5.0E+6 | 1.050E-8 | 1.0 | 1.256E-8 | 1.1 | 2.307E-8 | 0.8 |
| 6.0E+6 | 8.435E-9 | 0.8 | 9.634E-9 | 1.3 | 1.807E-8 | 0.8 |
| 8.0E+6 | 6.027E-9 | 0.7 | 6.591E-9 | 1.7 | 1.262E-8 | 0.9 |
| 1.0E+7 | 4.663E-9 | 0.7 | 5.015E-9 | 1.9 | 9.678E-9 | 1.0 |
| 1.5E+7 | 2.855E-9 | 0.8 | 2.827E-9 | 2.1 | 5.682E-9 | 1.1 |
| 2.0E+7 | 1.963E-9 | 0.9 | 1.604E-9 | 2.2 | 3.568E-9 | 1.1 |
| 3.0E+7 | 1.163E-9 | 1.1 | 5.181E-10 | 2.1 | 1.681E-9 | 1.0 |
| 4.0E+7 | 8.156E-10 | 1.2 | 1.867E-10 | 1.9 | 1.002E-9 | 1.1 |
| 5.0E+7 | 6.136E-10 | 1.2 | 8.607E-11 | 1.6 | 6.997E-10 | 1.1 |
| 6.0E+7 | 4.755E-10 | 1.2 | 5.364E-11 | 1.4 | 5.292E-10 | 1.1 |
| 8.0E+7 | 2.986E-10 | 1.2 | 3.605E-11 | 1.2 | 3.347E-10 | 1.1 |
| 1.0E+8 | 1.976E-10 | 1.2 | 3.053E-11 | 1.1 | 2.281E-10 | 1.0 |
| 1.5E+8 | 9.316E-11 | 1.4 | 2.494E-11 | 0.8 | 1.181E-10 | 1.2 |
| 2.0E+8 | 6.444E-11 | 1.8 | 2.279E-11 | 0.8 | 8.724E-11 | 1.3 |
| 3.0E+8 | 5.093E-11 | 1.9 | 2.068E-11 | 0.8 | 7.162E-11 | 1.4 |
| 4.0E+8 | 4.610E-11 | 1.8 | 1.915E-11 | 0.8 | 6.524E-11 | 1.3 |
| 5.0E+8 | 4.239E-11 | 1.7 | 1.778E-11 | 0.9 | 6.017E-11 | 1.2 |
| 6.0E+8 | 3.913E-11 | 1.5 | 1.652E-11 | 0.9 | 5.564E-11 | 1.1 |
| 8.0E+8 | 3.346E-11 | 1.2 | 1.427E-11 | 0.8 | 4.773E-11 | 0.9 |
Table 1 (continued)
Tabular Data for Recommended Decay Heat Power for
Pulse Thermal Fission of 235U
| Time | Beta | Uncertainty | Gamma | Uncertainty | Total | Uncertainty |
| (s) | (MeV/s/fission) | (%) | (MeV/s/fission) | (%) | (MeV/s/fission) | (%) |
| 1.0E+9 | 2.867E-11 | 1.1 | 1.233E-11 | 0.8 | 4.100E-11 | 0.8 |
| 1.5E+9 | 1.953E-11 | 1.1 | 8.569E-12 | 0.8 | 2.809E-11 | 0.8 |
| 2.0E+9 | 1.332E-11 | 1.1 | 5.954E-12 | 0.8 | 1.927E-11 | 0.8 |
| 3.0E+9 | 6.211E-12 | 1.1 | 2.875E-12 | 0.8 | 9.086E-12 | 0.8 |
| 4.0E+9 | 2.901E-12 | 1.1 | 1.388E-12 | 0.8 | 4.289E-12 | 0.8 |
| 5.0E+9 | 1.357E-12 | 1.1 | 6.705E-13 | 0.8 | 2.027E-12 | 0.8 |
| 6.0E+9 | 6.358E-13 | 1.1 | 3.239E-13 | 0.8 | 9.597E-13 | 0.8 |
| 8.0E+9 | 1.412E-13 | 1.2 | 7.573E-14 | 0.8 | 2.169E-13 | 0.8 |
| 1.0E+10 | 3.255E-14 | 1.2 | 1.787E-14 | 0.8 | 5.042E-14 | 0.8 |
| 1.5E+10 | 1.908E-15 | 1.2 | 7.422E-16 | 0.9 | 2.650E-15 | 0.9 |
| 2.0E+10 | 8.795E-16 | 1.5 | 2.921E-16 | 1.9 | 1.172E-15 | 1.2 |
| 3.0E+10 | 7.228E-16 | 1.7 | 2.794E-16 | 2.0 | 1.002E-15 | 1.3 |
| 4.0E+10 | 7.098E-16 | 1.7 | 2.787E-16 | 2.0 | 9.885E-16 | 1.3 |
| 5.0E+10 | 7.079E-16 | 1.7 | 2.781E-16 | 2.0 | 9.861E-16 | 1.3 |
| 6.0E+10 | 7.071E-16 | 1.7 | 2.775E-16 | 2.0 | 9.846E-16 | 1.3 |
| 8.0E+10 | 7.055E-16 | 1.7 | 2.763E-16 | 2.0 | 9.818E-16 | 1.3 |
| 1.0E+11 | 7.039E-16 | 1.7 | 2.751E-16 | 2.0 | 9.790E-16 | 1.3 |
| 1.5E+11 | 7.000E-16 | 1.7 | 2.721E-16 | 2.0 | 9.721E-16 | 1.3 |
| 2.0E+11 | 6.962E-16 | 1.7 | 2.691E-16 | 2.0 | 9.653E-16 | 1.3 |
| 3.0E+11 | 6.886E-16 | 1.7 | 2.632E-16 | 2.0 | 9.518E-16 | 1.3 |
| 4.0E+11 | 6.811E-16 | 1.7 | 2.575E-16 | 2.0 | 9.386E-16 | 1.3 |
| 5.0E+11 | 6.736E-16 | 1.6 | 2.519E-16 | 2.0 | 9.256E-16 | 1.3 |
| 6.0E+11 | 6.663E-16 | 1.6 | 2.464E-16 | 2.0 | 9.128E-16 | 1.3 |
| 8.0E+11 | 6.520E-16 | 1.6 | 2.358E-16 | 2.0 | 8.878E-16 | 1.3 |
| 1.0E+12 | 6.381E-16 | 1.6 | 2.257E-16 | 2.0 | 8.638E-16 | 1.3 |
| 1.5E+12 | 6.048E-16 | 1.6 | 2.022E-16 | 2.0 | 8.070E-16 | 1.3 |
| 2.0E+12 | 5.737E-16 | 1.6 | 1.812E-16 | 2.0 | 7.549E-16 | 1.2 |
| 3.0E+12 | 5.174E-16 | 1.6 | 1.454E-16 | 2.0 | 6.628E-16 | 1.2 |
| 4.0E+12 | 4.678E-16 | 1.5 | 1.167E-16 | 2.0 | 5.846E-16 | 1.2 |
| 5.0E+12 | 4.242E-16 | 1.5 | 9.370E-17 | 2.0 | 5.179E-16 | 1.2 |
| 6.0E+12 | 3.856E-16 | 1.5 | 7.522E-17 | 2.0 | 4.608E-16 | 1.1 |
| 8.0E+12 | 3.210E-16 | 1.5 | 4.847E-17 | 2.0 | 3.695E-16 | 1.1 |
| 1.0E+13 | 2.698E-16 | 1.5 | 3.124E-17 | 2.0 | 3.011E-16 | 1.1 |
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Tokai-mura, Naka-gun, Ibaraki-ken, 319-1195, Japan
