Assertion: decay's neutron | /r/HasProperty | free
Facets:
value: in quantity
type: OTHER
value: in an active nuclear reactor
type: LOCATION
value: in a spallation neutron source
type: LOCATION
Source sentences:
text: Neutrons are only free in quantity in the microseconds of a nuclear weapon's explosion, in an active nuclear reactor, or in a spallation neutron source.
text: Thermal neutrons are free neutrons whose energies have a Maxwell–Boltzmann distribution with kT = 0.0253 eV (4.0×10−21 J) at room temperature.