Dosimetry is used extensively for radiation protection and is routinely applied to monitor occupational radiation workers , where irradiation is expected , or where radiation is unexpected , such as in the aftermath of the Three Mile Island , Chernobyl or Fukushima radiological release incidents . The public dose take-up is measured and calculated from a variety of indicators such as ambient measurements of gamma radiation , radioactive particulate monitoring , and the measurement of levels of radioactive contamination
Three Mile Island
Three Mile Island accident
Dosimetry