| Abstract [eng] |
Doses to the eyes of interventional radiology staff can exceed the occupational dose limit and potentially cause radiation – induced cataracts. A protective eyewear model with side shield was evaluated to determine the effectiveness level of protection from scattered radiation, Eyewear Protection Factor (EPF). A series of dose measurement has been performed using TLD method, taking into account operator head orientation during procedures and eyewear fit. EPF was strongly influenced by the position of a radiation source and operator head orientation. It was shown that EPF for the front beam incidence vary from 2,8 to 3,3, while in the case of 450 beam incidence to the operator head factor values vary from 1,2 to 2,0 as well as for 900 incidence from 0,7 to 1,1. The decrease of radiation protection effectiveness is explained by a small size of side shield and possible backscattering radiation from the head itself. |
