A Neutronics Study of the 1945 Haigerloch B-VIII Nuclear Reactor
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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 k eff 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 k eff of impurities in the graphite of its neutron reflector could have been only on the order of few hundredths of a percent.
Keywords:Werner Heisenberg Walther Gerlach Haigerloch German nuclear program B-VIII nuclear reactor MCNP Monte Carlo code World War II nuclear physics nuclear reactors
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