Assertion: neutron | /r/HasProperty | absorbed in well-moderated thermal reactor
Facets:
value: before slowing down to this range
type: TEMPORAL
Source sentences:
text: These are of less significance in a fast neutron reactor, where most neutrons are absorbed before slowing down to this range, or in a well-moderated thermal reactor, where epithermal neutrons interact mostly with moderator nuclei, not with either fissile or fertile actinide nuclides.