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[1208] | 1 | \section{Introduction} |
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| 2 | |
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| 3 | \hspace{1.0em} Geant4 currently offers both a parameterized fission model |
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| 4 | and a data-driven fission model. The parameterized model predicts the |
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| 5 | final excited fragments which result from the symmetric or asymmetric |
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| 6 | fission of an excited nucleus. This model is considered as a competitor |
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| 7 | to the evaporation process for nuclei with atomic number $A \geq 65$. |
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| 8 | Here, the final state generation is discussed, while the calculation of |
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| 9 | the relative probability of fission with respect to evaporation channels |
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| 10 | is described in the chapter on evaporation. |
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| 11 | |
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| 12 | An alternative, data-driven model describes neutron-induced and spontaneous |
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| 13 | fission and was developed at Lawrence Livermore National Laboratory. It has |
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| 14 | improved multiplicity sampling and is based on a collection of empirical |
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| 15 | models. These models and the data upon which they are based are discussed. |
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| 16 | |
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