Author: Tanigaki, M.
Paper Title Page
MOPGF142 Development of a Network-based Personal Dosimetry System, KURAMA-micro 420
 
  • M. Tanigaki
    Kyoto University, Research Reactor Institute, Osaka, Japan
  • Y. Nakanishi
    Shikoku Research Institute Inc., Kagawa, Japan
  
  As the re­cov­ery from the nu­clear ac­ci­dent in Fukushima pro­gresses, strong de­mands arise on the con­tin­u­ous mon­i­tor­ing of in­di­vid­ual ra­di­a­tion ex­po­sure based on ac­tion his­to­ries in a large group, such as the res­i­dents re­turn­ing to their home­town after de­con­t­a­m­i­na­tion, or the work­ers in­volved in the de­comis­sion­ing of the Fukushima Dai­ichi nu­clear power plant. KU­RAMA-mi­cro, a per­sonal dosime­try sys­tem with net­work and po­si­tion­ing ca­pa­bil­ity, is de­vel­oped for such pur­pose. KU­RAMA-mi­cro con­sists of a semi­con­duc­tor dosime­ter and a DAQ board based on Ope­nATOMS. Each unit records ra­di­a­tion data tagged with their mea­sure­ment time and lo­ca­tions, and up­loads the data to the server over a Zig­Bee-based net­work once each unit comes near one of the ac­cess points pre­pared ex­pected ac­tiv­i­ties range of users. Lo­ca­tion data are ba­si­cally ob­tained by a GPS unit, and an ad­di­tional radio bea­con scheme using Zig­Bee broad­cast pro­to­col is also used for the in­door po­si­tion­ing. The de­vel­op­ment of a proto-type KU­RAMA-mi­cro is fin­ished and a field test for the work­ers of a nu­clear re­ac­tor under nor­mal op­er­a­tion is planned in the spring of 2015.  
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