What is physical dosimetry?
• Personal dosimeters • Worn on outside of clothing by workers in an actual or potential radiation environment to track exposure • Measure the radiation dose received by the device • Knowing the location of the device on the wearer’s person helps interpret the significance of the dosimetry reading for the wearer • Many different kinds of devices are available • Survey meters • Measure radiation levels in the environment • Can be used to estimate dose that may have been received by workers or victims in the area assessed by the meter • Many different kinds of devices are used • Computerized 2D or 3D models of radiation levels • Can be generated from data in actual radiation events or theoretical models of events, including in specific venues • These 2-D or 3-D models of radiation levels can be overlaid on maps and can track changes over time. • After a radiation event, theoretical models can provide initial estimates of dose at locations of interest. • As actual radiation survey data be