We present a neutronics study of the German B-VIII nuclear reactor, which was built in Haigerloch, Germany, between February and April 1945. We used the Monte Carlo code MCNP5 to estimate its effective nuclear-multiplication constant keff and its corresponding neutron-multiplication factor M, its neutron energy-distribution spectrum, and its neutron-flux distribution in its central horizontal and veritical planes for both thermal and fast neutrons. Our calculations agree well with the known measurements the German scientists made, who determined M to be 6.7. We also found that the effect on keff of impurities in the graphite of its neutron reflector could have been only on the order of few hundredths of a percent.

A Neutronics Study of the 1945 Haigerloch B-VIII Nuclear Reactor

GRASSO, GIACOMO;ROCCHI, FEDERICO;SUMINI, MARCO
2009

Abstract

We present a neutronics study of the German B-VIII nuclear reactor, which was built in Haigerloch, Germany, between February and April 1945. We used the Monte Carlo code MCNP5 to estimate its effective nuclear-multiplication constant keff and its corresponding neutron-multiplication factor M, its neutron energy-distribution spectrum, and its neutron-flux distribution in its central horizontal and veritical planes for both thermal and fast neutrons. Our calculations agree well with the known measurements the German scientists made, who determined M to be 6.7. We also found that the effect on keff of impurities in the graphite of its neutron reflector could have been only on the order of few hundredths of a percent.
G. Grasso; C. Oppici; F. Rocchi; M. Sumini
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/78687
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