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 / G. Grasso; C. Oppici; F. Rocchi; M. Sumini. - In: PHYSICS IN PERSPECTIVE. - ISSN 1422-6944. - STAMPA. - 11:(2009), pp. 318-335. [10.1007/s00016-008-0396-0]
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
