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Report No.
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Re-evaluation of dose measurements under criticality accident conditions at SILENE and TRACY using TLDs

Murazaki, Minoru; Tonoike, Kotaro ; Uchiyama, Gunzo 

We have re-evaluated the dose measurements at SILENE with TLDs for neutrons and with TLDs for $$gamma$$ rays, and at TRACY with TLDs for neutrons. The measurements with TLDs for neutrons were re-evaluated by revising factors used for calculation of doses from measured data. The re-evaluated results of TLDs for neutrons at SILENE agreed with the reference value given by IRSN within 10%. The re-evaluated results of TLDs for neutrons at TRACY are consistent with dose and distance from the surface of the core tank. The re-evaluated results at TRACY were about 50% larger than results of polymer-alanine dosimeters and those of TLDs for neutrons measured by the authors. The measurements at SILENE with TLDs for $$gamma$$ rays were re-evaluated by revising the method for obtaining doses from measurement data. By the re-evaluation, it was confirmed that the methods described in the present report are valid for processing measured data of TLDs for neutrons and those for $$gamma$$ rays.

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