| Abstract: | The Nuclear Regulatory Commission is publishing a petition for rulemaking submitted by the American Association of Physicists in Medicine. The petition requests an interval longer than the two years between required calibrations of a dosimetry system used to perform full calibration measurements on a teletherapy unit--as long as suitable dosimetry system verification checks are carried out. The suggested amendments are intended to reduce the current six month waiting period for instrument calibration without adversely affecting dosimetry system reliability. |
