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5.4 - Dosimeter Use Guidelines

Updated: 5/13/2026

Failure to practice the following guidelines will render a radiation dosimeter useless in accurately measuring the exposure that a particular student receives in the clinic or laboratory setting. Failure to follow these guidelines may result in a Zerograde penalty.

  • Do not immerse the dosimeter in liquids, expose it to bright light or extreme heat, or a microwave oven.  Should any of the above happen to a student’s dosimeter, it should not be worn.  It must be immediately exchanged at the Radiation Safety Office.  
  • In the event that a dosimeter receives radiation exposure that is not a reflection of personal clinical practice, notify the Clinical Coordinator as soon as possible. Examples include wearing a dosimeter during personal medical procedures involving ionizing radiation or leaving dosimeters unattended near sources of radiation.
  • Never exchange or wear a dosimeter issued to another person since each is issued to a specific person and is presumed to record that person’s exposure. 
  • Students are responsible for maintaining and exchanging their own dosimeters. 
  • If a student is employed as a radiation worker while in a departmental program, he/she must not wear dosimeters provided by the Department during work hours. The employer must provide a badge in this instance.  

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