Assertion: heavy water's neutron | /r/HasProperty | absorbed by other materials
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Source sentences:
text: If more neutrons are released than are lost or absorbed by other materials, the chain reaction is said to achieve criticality.
text: The value of the thermal utilization factor is given by the ratio of the number of thermal neutrons absorbed in the fuel ( all nuclides ) to the number of thermal neutrons absorbed in all the material that makes up the core.