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AGA: Arbeitsgruppe Physik und Abrüstung

AGA 4: Fissile Material and Proliferation Resistance

AGA 4.3: Vortrag

Donnerstag, 5. März 2009, 15:30–16:00, VMP 9 HS

Radiative aspects in coupled nuclear fission-fusion processes — •Jens Fiedler and Peter Hafner — Fraunhofer Institut Naturwissenschaftlich-Technische Trendanalysen, Euskirchen, Germany

Boosting of fission processes using fusion neutrons is a well-known technique in developing compact nuclear fission devices. The Fraunhofer Institute for Technological Trend Analysis (INT) operates a coupled hydrodynamic-neutron transport program system, which also incorporates radiative processes. This program system allows studying the physics of interactions between fission and fusion processes. At high temperatures a significant amount of energy is governed by radiation. Radiation and the encapsulated material generally affect each other. The description of such a model requires the solution of the radiation transport equation, which is a complex task. Calculations performed in this work take radiation processes into account by a radiation heat conduction formulation. Besides presenting the basic concept of fission-fusion devices, first results from coupled fission-fusion calculations are given in this presentation.