German to Portuguese Tech/Engineering Engineering: Industrial X rays device

Both terms are in the same sentence and I would like to know the concrete differences between them, as they seem to have the same general meaning. It seems to me that the Strahlenschutzbeauftragter is someone who is authorized by some entity but I can't be sure.

Here is the original sentence for some context:

"Des Weiteren muss der Behörde ein Strahlenschutzverantwortlicher und ein geschulter Strahlenschutzbeauftragter benannt werden."

Thank you!