[Johnny B.]

Rossi has been working with Focardi all along IN ITALIA.

Actually, they don't appear to have been working all that closely.

In THIS interview, Focardi (using Rossi as a translator) says that his involvement was with "safety" issues, such as calculating how much shielding it would need (7:45). Rossi adds that Focardi "doesn't know how the reactor is built." (11:00)

[muawiyah]

Did you realize you had your answer right there ~ Focardi computed shielding needed for the type of radiation to be encountered.

Your question started with radiation as the issue ~ so it was. That's what Focardi does.

NOTE There are other articles on the net about Focardi. He's been involved in LENR a long time.

Don't give us mysteries to solve where you already know the answers.