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Job Duties. Health physics technicians use equipment, such as spectrometers and gamma counters, to determine levels of radiation. They calculate exposure times and instruct workers in safety procedures and precautions, including the use of radiation detectors and protective gear.
Health information technicians document patientsâ health information, including their medical history, symptoms, examination and test results, treatments, and other information about healthcare services that are provided to patients. Their duties vary by employer and by the size of the facility in which they work.