Calibration of an eye lens dosemeter in terms of Hp(3) to be used in interventional radiology

Abstract

Recently, the International Commission on Radiological Protection has reviewed epidemiological evidences suggesting that there were tissue reaction effects in the eye lens below the previously considered absorbed dose threshold. A new statement related to the eye lens was issued that changed the absorbed dose threshold and reduced the dose limits for occupationally exposed persons. As consequence, some planned exposures require eye lens dosimetry and a debate was raised on the adequacy of the dosimetric quantity and on its method of measurement. The aim of this work was to study the methodology for calibrating the EYE-D TM holder with a TLD-100H Harshaw chip detector and to determine its angular and energy dependences in terms of personal dose equivalent, H p (3). • Results of calibration of the eye lens dosemeters, in terms of H p (3). • The proposal of phantoms and specific dosemeters for eye lens have proved viable. • The tests carried out met the limits of acceptance proposed by ISO. • The good performance of the tests may suggest a reduction in the acceptance limits.