welcome! I research which industries, suplly radioactive substances. Here's where I found " Medical Cyclotron is a cyclotron that is a type of compact particle accelerator used to produce quantities of radioactive isotopes called positron emitters. Stable, non-radioactive isotopes are put into the cyclotron which accelerates charged particles to high energy in a magnetic field. The stable isotopes then react with a beam to form radioactive isotopes, which are then taken from the cyclotron, transformed into positron-emitting radiopharmaceuticals (PERs) within the facility’s laboratories and are delivered to nuclear medicine where they are used for imaging procedures" Besides specific industries, and special, South Africa, supllying radioactive isotopes for medicine, we also have some hospitals with this particular device, that have on their laboratory , lots of radioactive produced substances, as fludeoxyglucose F 18