From: albedo5
. Chances are the "secret" may not be a gamma emitter at all, but it's worth a go. With a lead-shielded reactor it is doubtful that any radiation other than gammas could be detected.
From: albedo5
. Chances are the "secret" may not be a gamma emitter at all, but it's worth a go. With a lead-shielded reactor it is doubtful that any radiation other than gammas could be detected.