Assertion: protactinium | /r/HasAspect | a long
Facets:
value: for the process
type: PURPOSE
value: relatively
type: DEGREE
Source sentences:
text: Whereas both products are useful for the breeding process, and are the desired nuclear fuel, their production from protactinium-233 is rather inefficient: 233Pa has a relatively long for the process half-life of 27 days and high cross section for neutron capture (the so-called "neutron poison").