Assertion: neptunium's radioactivity | /r/HasProperty | low
Facets:
value: relatively
type: DEGREE
value: at about 300 millirem per hour
type: TEMPORAL
Source sentences:
text: The neptunium criticality was achieved in a "low power" state, where the overall radioactivity is kept relatively low, at about 300 millirem per hour, and no significant heat or fission byproducts are created.