Self Reading Pocket Dosimeters - SRPDs

The term Self Reading Pocket Dosimeter applies to any of a variety of devices which can be read by the wearer to determine the dose received. The SRPD is usually used as a supplemental device to aid in dose tracking during activities where elevated doses are possible.

• Pocket Ion Chambers - (PIC) These are small instruments which operate on the electroscope principle. Typically, the range of the PIC is 0-200 mR. This is one of the most common supplemental dosimeters used in Radiation Areas. 
  
• Electronic dosimeters (ED) are sometimes used instead of and in addition to PICs when it is helpful to have he additional capability of dose or dose rate alarm functions. The electronic dosimeter has a broad dose range and is usually very accurate. 
  
• Self-reading neutron dosimetry such as neutron bubble dosimeters may be required for certain work areas. Always consult the applicable Radiation Work Permit (RWP) and Operational Safety Procedure. 
  
• Other supplemental dosimeters may be required when entering High Radiation Areas or other RWP areas.