Fission Reaction Event Yield Algorithm, FREYA — For event-by-event simulation of fission

Fission Reaction Event Yield Algorithm FREYA User Manual

From nuclear materials accountability to detection of special nuclear material, SNM, the need for better modeling of fission has grown over the past decades. Current radiation transport codes compute average quantities with great accuracy and performance, but performance and averaging come at the price of limited interaction-by-interaction modeling. For fission applications, these codes often l...

Applications of Event-by-Event Fission Modeling with FREYA

The recently developed code FREYA (Fission Reaction Event Yield Algorithm) generates large samples of complete fission events, consisting of two receding product nuclei as well as a number of neutrons and photons, all with complete kinematic information. Thus it is possible to calculate arbitrary correlation observables whose behavior may provide unique insight into the fission process. We firs...

Event-by-event evaluation of the prompt fission neutron spectrum from 239Pu(n, f)

Event-by-event analysis of collision-induced cluster-ion fragmentation: sequential monomer evaporation versus fission reactions.

The most abundant decay channels have been studied quantitatively for high-energy (60 keV/amu) cluster ions H (3) (+)(H (2))(m = 1-14) colliding with He atoms employing a recently developed multicoincidence technique for the simultaneous detection of the correlated fragments on an event-by-event basis. This allows us to identify decay reactions and their underlying decay mechanisms responsible ...

Event-by-Event Simulation of Quantum Phenomena

Recent advances in nanotechnology are paving the way to attain control over individual microscopic objects. The ability to prepare, manipulate, couple and measure single microscopic systems facilitate the study of single quantum systems at the level of individual events. Such experiments address the most fundamental aspects of quantum theory. Indeed, quantum theory gives us only a recipe to com...