Neutron
Moderation
un
seel
.com · slowing neutrons · elastic scattering · thermal fission
neutron energy
2.0 MeV
speed
1.96e7 m/s
collisions
0
U-235 σ_fission
1 barn
state
standby
fast neutron (~2 MeV)
moderator nucleus (light)
thermalized neutron (~0.025 eV)
U-235 fuel nucleus
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Un
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.com · Neutron Moderation