"Radiation-emitting" would be correct in this case. As it reads now, the ball is made of radiation and is itself emitting plutonium.
Nononono whyyyy is it emitting plutonium, the plutonium would be emitting radioactive particles D:
Also, it likely wouldn’t glow blue since there are no reflectors, so it wouldn’t reach criticality.
I love this one regardless :)
Weapons grade spheres of plutonium need reflectors because they are just below critical mass, and the reflector pushes it slightly into criticality. There's nothing stopping you from making it a critical mass in the first place. Accidents have occurred with liquids at power plants where enough of it was pooled together to achieve criticality without a neutron reflector.
Reminds me of the Lia radiological accident. Maybe they too were wizards.
