Advanced potable thermoluminescent dosimeter system for monitoring environemntal radiation

摘要

It is well known that environmental gamma-radiation dosimetry is based mainly on thermoluminescent (TL) dosimetry. This method offers considerable advantages, chiefly its high precision, low cost, and wide range. At the same time, its application involves uncertainty because of the need to transport the collected dose from the point of annealing to the place of exposure, and back to the place of evaluation. Should an accident occur, the readout is delayed because of the need to transport the dosimeter to a laboratory equipped with a thermoluminescent dosimeter (TLD) reader. A portable reader capable of reading out the TLD at the place of exposure (an in situ TLD reader) eliminates the above-mentioned disadvantages.