A commonly used device for measuring people’s exposure to radiation. It contains activated sodium fluoride which lights up in proportion to the radiation dose to which it is exposed.
An instrument for measuring a person’s body temperature. A traditional clinical thermometer comprises a glass capillary tube sealed at one end with a mercury-filled bulb at the other. The mercury expands (rises) and contracts (falls) according to the temperature of the bulb, which may be placed under the tongue or arm or in the rectum. Calibration is in degrees Celsius or Fahrenheit. Modern thermometers use an electric probe linked to a digital read-out display, providing an instant reading. Hospitals have electronic devices that maintain constant monitoring of patients’ temperatures, pulse rates and blood pressure.
A monitoring device consisting of a small crystal in a container that can be attached to a patient or to a health care worker. It stores energy when struck by ionizing radiation. When heated, it will emit light proportional to the amount of radiation to which it has been exposed.