Purratio uses a H+, D+, or Li+ plasma jet impinging on a Palladium cathode. Their reactor creates helium-3 and neutrons.
It runs intermittently so as to allow the cathode to cool. Plasma pulses range from microseconds to seconds.
Neutrons are detected almost immediately at 300x background. They use 3 layers of shielding from the neutrons, first lead, second water, and finally boric acid.
Not sure why they would call this cold fusion? But if it works that is OK.
I didn't see any mention of the COP.
