Rezwan,
http://nrc.gov covers the federal —> state regulations for the u.s. Haven’t checked the international atomic energy commission yet. As Rematog pointed out, the X-ray generator nature is what really exposes us to regulation. Some experience with the higher powered test rig will get us solid data on how long it takes to get a core back to background level radiation, our 2nd “exposure as I see it. Have you looked into IAEC and/or UN regulatory bodies?