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ABSTRACT
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Paul REUSS: Professor at the Institut national des sciences et techniques nucléaires, French Atomic Energy Commission
INTRODUCTION
This document is the continuation of the "Bases de neutronique. Neutron migration".
In dossier BN 3014, we presented the physical aspects of how neutrons travel through matter. This path follows the seven variables of the Boltzmann equation: the three space variables (diffusion), the three velocity components (slowing down, thermalization) and time (kinetics).
In this paper, the effects of neutron reactions on reactor operation will be examined, and neutron calculation methods will be explained.
Notations and symbols |
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Neutron scientists have not – to our great regret – made the effort to adopt the international system of units. In particular, all dimensions are expressed in centimetres. Consequently :
However, microscopic cross sections are expressed in the usual unit of nuclear physics, the barn (1 b = 10 -24 cm 2 = 10 -28 m ... |
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