Appendice G – Yield dei prodotti di fissione a lunghissima vita media dai
principali isotopi fissili e fissionabili
Fission Product Yields per 100 Fissions for 232Th High-Energy Neutron Fission Decay, T.R. England and B.F. Rider, LA-UR-94-3106,
ENDF-349
--- Nuclide t1/2 Ind. Yield Cum. Yield
--- 79Se 6.5e4y 5.08E-05 4.14E-01 93Zr 1.5e6y 2.76E-05 5.58E+00 99Tc 2.1e5y 1.82E-08 2.05E+00 126Sn 1.e5y 5.64E-02 8.77E-01 129I 1.6e7y 3.44E-06 1.25E+00 135Cs 2.3e6y 5.23E-03 5.25E+00
Tabella G.1 – Fissione del Th232
Fission Product Yields per 100 Fissions for 235U Pooled Fast Neutron Fission Decay, T.R. England and B.F. Rider, LA-UR-94-3106,
ENDF-349
--- Nuclide t1/2 Ind. Yield Cum. Yield
--- 79Se 6.5e4y 1.38E-05 9.09E-02 93Zr 1.5e6y 4.93E-05 6.25E+00 99Tc 2.1e5y 4.85E-08 5.94E+00 126Sn 1.e5y 6.79E-02 9.74E-02
129I - - -
135Cs 2.3e6y 2.06E-04 6.60E+00
Tabella G.2 – Fissione veloce dell’U235
Fission Product Yields per 100 Fissions for 235U Thermal Neutron Induced Fission Decay, T.R. England and B.F. Rider, LA-UR-94-3106,
ENDF-349
--- Nuclide t1/2 Ind. Yield Cum. Yield
--- 79Se 6.5e4y 1.10E-05 4.47E-02 93Zr 1.5e6y 1.37E-04 6.35E+00 99Tc 2.1e5y 1.23E-07 6.11E+00 126Sn 1.e5y 4.45E-02 5.61E-02
129I - - - 135Cs 2.3e6y 4.91E-04 6.54E+00
--- 79Se 6.5e4y 6.89E-07 3.27E-02 93Zr 1.5e6y 2.17E-06 4.91E+00 99Tc 2.1e5y 1.99E-09 6.17E+00
129I - - -
126Sn 1.e5y 1.63E-02 5.41E-02 135Cs 2.3e6y 3.71E-05 6.97E+00
Tabella G.4 – Fissione dell’U238
Fission Product Yields per 100 Fissions for 239Pu Pooled-Fast Neutron Fission Decay, T.R. England and B.F. Rider, LA-UR-94-3106,
ENDF-349
--- Nuclide t1/2 Ind. Yield Cum. Yield
--- 79Se 6.5e4y 1.46E-04 6.08E-02 93Zr 1.5e6y 1.15E-03 3.83E+00 99Tc 2.1e5y 7.26E-06 5.98E+00 126Sn 1.e5y 2.23E-01 2.63E-01 129I 1.6e7y 2.28E-10 1.45E+00 135Cs 2.3e6y 1.25E-02 7.55E+00
Tabella G.5 – Fissione veloce del Pu239
Fission Product Yields per 100 Fissions for 239Pu Thermal Neutron Induced Fission Decay,
T.R. England and B.F. Rider, LA-UR-94-3106, ENDF-349
--- Nuclide t1/2 Ind. Yield Cum. Yield
--- 79Se 6.5e4y 1.99E-04 4.37E-02 93Zr 1.5e6y 1.69E-03 3.80E+00 99Tc 2.1e5y 1.20E-05 6.21E+00 126Sn 1.e5y 1.69E-01 1.99E-01 129I 1.6e7y 3.85E-10 1.37E+00 135Cs 2.3e6y 1.26E-02 7.62E+00
Fission Product Yields per 100 Fissions for 240Pu Fast-Pooled Neutron Fission Decay, T.R. England and B.F. Rider, LA-UR-94-3106,
ENDF-349
--- Nuclide t1/2 Ind. Yield Cum. Yield
--- 79Se 6.5e4y 3.94E-05 4.17E-02 93Zr 1.5e6y 2.65E-04 3.51E+00 99Tc 2.1e5y 1.69E-06 5.93E+00 126Sn 1.e5y 2.13E-01 2.70E-01 129I 1.6e7y 2.93E-11 1.15E+00 135Cs 2.3e6y 3.31E-03 7.44E+00
Tabella G.7 – Fissione del Pu240
Fission Product Yields per 100 Fissions for 241Pu Pooled-Fast Neutron Fission Decay, T.R. England and B.F. Rider, LA-UR-94-3106,
ENDF-349
--- Nuclide t1/2 Ind. Yield Cum. Yield
--- 79Se 6.5e4y 1.28E-05 3.59E-02 93Zr 1.5e6y 4.26E-05 2.98E+00 99Tc 2.1e5y 1.03E-07 5.53E+00 126Sn 1.e5y 1.62E-01 2.23E-01 129I 1.6e7y 8.69E-12 1.17E+00 135Cs 2.3e6y 7.50E-04 7.07E+00
Tabella G.8 – Fissione veloce del Pu241
Fission Product Yields per 100 Fissions for 241Pu Thermal Neutron Induced Fission Decay,
T.R. England and B.F. Rider, LA-UR-94-3106, ENDF-349
--- Nuclide t1/2 Ind. Yield Cum. Yield
--- 79Se 6.5e4y 1.75E-05 1.50E-02 93Zr 1.5e6y 6.98E-05 2.98E+00 99Tc 2.1e5y 1.61E-07 5.96E+00 126Sn 1.e5y 4.91E-02 8.20E-02 129I 1.6e7y 5.91E-12 8.20E-01 135Cs 2.3e6y 7.31E-04 7.17E+00
--- 79Se 6.5e4y 5.94E-06 3.38E-02 93Zr 1.5e6y 1.39E-05 2.81E+00 99Tc 2.1e5y 9.75E-08 5.44E+00
129I - - -
126Sn 1.e5y 8.97E-02 1.68E-01 135Cs 2.3e6y 3.90E-04 7.00E+00
Tabella G.10 – Fissione del Pu242
Fission Product Yields per 100 Fissions for 241Am Fast-Pooled Neutron Fission Decay, T.R. England and B.F. Rider, LA-UR-94-3106,
ENDF-349
--- Nuclide t1/2 Ind. Yield Cum. Yield
--- 79Se 6.5e4y 1.75E-04 3.44E-02 93Zr 1.5e6y 1.94E-03 2.82E+00 99Tc 2.1e5y 4.61E-05 5.40E+00 126Sn 1.e5y 2.19E-01 2.49E-01 129I 1.6e7y 1.05E-09 1.02E+00 135Cs 2.3e6y 2.45E-02 6.51E+00
Tabella G.11 – Fissione dell’Am241
Fission Product Yields per 100 Fissions for 243Am Fast-Pooled Neutron Fission Decay, T.R. England and B.F. Rider, LA-UR-94-3106,
ENDF-349
--- Nuclide t1/2 Ind. Yield Cum. Yield
--- 79Se 6.5e4y 3.76E-05 1.90E-02 93Zr 1.5e6y 6.85E-04 2.58E+00 99Tc 2.1e5y 1.69E-05 5.40E+00 126Sn 1.e5y 1.65E-01 2.28E-01 129I 1.6e7y 6.20E-11 9.48E-01 135Cs 2.3e6y 1.24E-02 6.77E+00
Fission Product Yields per 100 Fissions for 244Cm Fast-Pooled Neutron Fission Decay, T.R. England and B.F. Rider, LA-UR-94-3106,
ENDF-349
--- Nuclide t1/2 Ind. Yield Cum. Yield
--- 79Se 6.5e4y 1.56E-04 2.50E-02 93Zr 1.5e6y 1.50E-03 2.42E+00 99Tc 2.1e5y 5.71E-05 5.10E+00 126Sn 1.e5y 2.40E-01 2.78E-01 129I 1.6e7y 2.10E-04 1.09E+00 135Cs 2.3e6y 3.48E-02 5.68E+00
Tabella G.13 – Fissione del Cm244
Fission Product Yields per 100 Fissions for 245Cm Thermal Neutron Induced Fission Decay,
T.R. England and B.F. Rider, LA-UR-94-3106, ENDF-349
--- Nuclide t1/2 Ind. Yield Cum. Yield
--- 79Se 6.5e4y 3.21E-05 2.04E-02 93Zr 1.5e6y 6.54E-05 1.82E+00 99Tc 2.1e5y 1.52E-06 4.17E+00 126Sn 1.e5y 1.20E-01 1.60E-01 129I 1.6e7y 3.24E-11 1.27E+00 135Cs 2.3e6y 6.04E-03 6.80E+00
