The dosimeter should be upright, with the clip toward the body. When working in a non-uniform field of radiation or working with highly radioactive sources, additional dosimeters may be necessary because different parts of your body may receive significantly different doses. In these cases, dosimeters for extremities or for other parts of the body as well as a whole body dosimeter may more accurately indicate your dose. A dosimeter holder for the wrist is available, or dosimeter placed on other parts of the body can be used to monitor the areas of highest exposure concern. The RSO can supply you with additional dosimeters when the need arises.
Radiation dosimetry is sensitive to heat, moisture, pressure, light, and time.
Protect your dosimeter from physical damage. When you receive a control dosimeter, store the dosimeter where you keep your dosimeter when not in use. Return the control dosimeter when you return your regular dosimeter, even if you do not receive another control dosimeter. When radioactive work terminates permanently, or when you are transferred or leave the University, include a note to the RSO with your last dosimeter, requesting cancellation. Be sure that the complete dosimeter number, name and a forwarding address is given.