MEASUREMENTS OF ENTRANCE SKIN DOSE, ORGAN DOSE AND EFFECTIVE DOSE IN FOUR COMMON RADIOGRAPHIC EXAMINATIONS - A COMPARATIVE STUDY BETWEEN FREE-IN-AIR METHOD AND THERMOLUMINESCENT DOSIMETRY

摘要

For patient dose measurement, thermoluminescent dosimetry (TLD) is an accurate but laborious and time-consuming method. The free-in-air measurement method using ionization chamber is often employed since it is less complicated. This study was carried out to compare entrance skin dose (ESD) organ dose and effective dose between two methods in selected common radiographic examinations.