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Calculation of ^(239)Pu Fission Observables in an Event-by-Event Simulation
R. Vogt,J. Randrup,J. Pruet,W. Younes 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.23
The increased interest in more exclusive fission observableshas demanded more detailed models.We describe a new computational model, \code, that aims to meet this needby producing large samples of complete fission eventsfrom which any observable of interest can then be extracted consistently,including any interesting correlations.The various model assumptions are described and the potential utility of the model is illustrated.As a concrete example, we use formal statistical methods,experimental data on neutron production in neutron-induced fission of ^(239)Pu, along with \code,to develop quantitative insights intothe relation between reaction observables and detailed microscopicaspects of fission. Current measurements of the meannumber of prompt neutrons emitted in fission taken together with lessaccurate current measurements for the prompt post-fission neutronenergy spectrum, up to the threshold for multi-chance fission, place remarkably fine constraints on microscopic theories.