One of three film badge radiation dose monitors used to measure the radiation doses of people working with radioactive materials. The exposure is calculated by measuring the darkening of the film inside the monitor after it is developed. Film badge radiation dosemeters 1980
Three exposed film samples for radiation dose monitors used to measure the radiation doses of people working with radioactive materials Film badge radiation dosemeters 1980
Four thermoluminescent dosemeters for fingertips, unsigned, British 1980 Four thermoluminescent fingertip dosemeters 1980