Research Article
On Some Fundamental Peculiarities of the Traveling Wave Reactor
Table 2
Moderating and absorbing properties of some substances, moderator layer width estimate for moderating neutron from
MeV to
= 0.1 MeV.
| Moderator | Mass number, | Mean logarithmic energy, | Density, , g/cm | Impacts number required for moderating, | Neutron mean free path, | Moderator layer width, , cm |
| Be | 9 | 0.21 | 1.85 | 11 | 1.39 | 15.3 | C | 12 | 0.158 | 1.60 | 15 | 3.56 | 53.4 | HO | 18 | 0.924 | 1.0 | 2.5 | 16.7 | 41.6 | O + B | | | | 2.5 | 10.0 | 25.0 | He | 4 | 0.425 | 0.18 | 5.41 | 11.2 | 60.7 |
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