Dose Calculation Algorithms for Panasonic Dosimetry

 

Last Revised: 1 October 2011

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Text Box: Two general algorithm models have been developed for use with Panasonic dosimeters.  Both are designed to address the more rigorous performance test requirements of the most recent NVLAP accreditation standard — ANSI/HPS N13.11-2001.  Testing using data obtained from the PNNL "Photon of the Month" program and other sources confirmed that either of these models will provide results far superior to those that would be obtained using either the generic branching style algorithm contained in the original Panasonic Users' Manual or branching style algorithms modified from that generic model. Links to demonstration versions of both of these models are provided below. IT IS CRITICAL TO REMEMBER THAT THESE MODELS ARE FOR DEMONSTRATION PURPOSES ONLY AND MUST NOT BE USED FOR CALCULATING ACTUAL DOSES TO MONITORED INDIVIDUALS ... WHICHEVER ALGORITHM MODEL IS SELECTED MUST BE "FINE TUNED" TO MATCH YOUR DOSIMETER/HANGER COMBINATION AND THE HEATING CONDITIONS YOU HAVE ESTABLISHED IN YOUR LABORATORY Text Box: Doc's Dosimetry This "matrix style" algorithm has been modified by Doc's Dosimetry from an algorithm first developed for the Tennessee Valley Aurhority (TVA) and described by R. D. Colvett in 1988.  The calculation process is based on a matrix unfolding technique originally developed by R. Gold in 1964.  Modified Gold Demonstration Algorithm for Panasonic UD-802 Text Box: Stanford Dosimetry  This "function style" algorithm has been developed by Stanford Dosimetry. The general approach  is to isolate the radiation type specific responses and then  characterize the radiation types beginning with the most interfering and working to the least interfering (photon field first, then neutron then beta). More details may be found on the Stanford Dosimetry web site.