Assertion: berkelium's life | /r/HasProperty | short
Facets:
value: for months-long reactor irradiations
type: CAUSE
value: much too
type: DEGREE
Source sentences:
text: Also, the rare 250Cm isotope was synthesized in large quantities, which is very difficult to produce in nuclear reactors from its progenitor 249Cm – the half-life of 249Cm (64 minutes) is much too short for months-long reactor irradiations, but is very "long" on the explosion timescale.
text: Calculations have confirmed the accuracy of this simple extrapolation, although experimental verification of this is currently impossible as the half-lives of the known tennessine isotopes are too short.