Dosimeters are used to measure the radiation dose to an individual.
Dosimeters do not provide any protection from radiation. The dosimeter should be
clipped to the clothing between the waist and neck. The collar is the
recommended location of the dosimeter because it is typically the maximally
exposed area of the body.
Luxel dosimeters utilize inorganic crystals to
measure radiation dose. These dosimeters are exchanged monthly or quarterly
depending on the potential exposure of the individual. These dosimeters are
hexagonal in shape. If a Luxel Dosimeter has been issued to an individual,
he/she must always wear it when entering a therapy patient room and the
dosimeter may not be worn by anyone else.
Thermoluminescent Chips are placed in rings and are
used to monitor exposure to the hands and fingers. Only personnel who may handle
radiation sources should have these rings.
The University of Washington Radiation
Safety Manual contains additional information on dosimeters.