Distribution of Stray Radiation in a Fluoroscopy Room.

Abstract

The results of a dosimetric evaluation carried out during radioscopic observation in a room for radiological examination of the intestinal tract, are reported. On the basis of the measures obtained it has been possible to draw on the plan of the room some isoexposure curves full of recesses and enlargements. The radiation emerging from X-ray tube is not always reduced at distance from the working apparatus but on the contrary, some time can be increased. The authors point out the usefulness of adopting the indication of «hot areas» which ought to be represented by dash on the floor of the rooms where radiological examinations are made. This simple precaution would be very useful in order to improve the prophylaxis against the overexposure in radiological departments.