If it is likely that your radiation dose will exceed 10 percent of the U.S. Nuclear Regulatory Commission’s limits or 25 percent of the State of CT Department of Energy & Environmental Protection limits, you will need to wear a personal radiation monitoring badge.
All users of medical x-ray equipment (C-arms, fluoro units, therapy units) must wear badges. Those using larger quantities of radioactive materials will also be provided badges. Those using 10 millicuries or more of P-32 or other high-energy beta (or gamma) emitters will also be provided ring badges to monitor their hand exposures. Those using only H-3, C-14 and S-35 will not be provided badges as radiation from these low-energy beta emitters cannot be recorded on the badge monitor.