LMRT-Radiography A Comprehensive Guide.

When the gonads are within 5cm of the radiation field The greatest cause of unnecessary radiation to patients that can be controlled by the limited operator are: repeat exposures The limited operator can reduce repeat exposures by: clearly instructing patients How does x-ray beam restriction minimize patient exposure It limits the radiation field to the area of interest What is the device that allows the limited operator to vary the size of the radiation field Collimator How does filtration reduce patient exposure Removes longer wavelength photons What is the National Council on Radiation Protection and Measurements (NCRP) recommendation for the amount of total filtration 2.5mm Al Equivalent What are the three principal methods used to protect limited operators from unnecessary radiation exposure? 1. Time 2. Distance