"Addressing Dosimetry Challenges through Innovation and Collaboration"

Algorithm Development for Panasonic Dosimetry Technology

Two new algorithm models have been developed for use with Panasonic dosimeters.  Both are designed to address the more rigorous performance test requirements of ANSI/HPS N13.11-2001.  All NVLAP accredited laboratories MUST demonstrate acceptable performance when measured to this new standard by June 2004!

Preliminary testing using data obtained from the PNNL "Photon of the Month" program and other sources confirms 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 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

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

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.

Last Revised: 04/22/2006

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