[2D18-23] Nuclear fuel material analysis (Debris accountability)

[2D23] Characterization Study of Candidate Technologies for Nuclear Material Quantification in Fuel Debris at Fukushima Daiichi Nuclear Power Station

(6)Study on Inventory Evaluation Method of Nuclear Fuel Material Using Detector Responses

*Keisuke Okumura¹, Wakaei Sato³, Taketeru Nagatani¹, Masao Komeda¹, Tomooki Shiba¹, Yasushi Nauchi², Akira Takada³ (1. JAEA, 2. CRIEPI, 3. NESI)

Keywords:Fukushima Daiichi Nuclear Power Station, Fuel Debris, Nuclear Material Quantification, Non-destructive Assay, Burnup Calculation

In order to contribute to the development of quantitative technology for the nuclear fuel materials in the fuel debris at the Fukushima Daiichi Nuclear Power Station, we examined the evaluation method and prediction accuracy of the nuclear fuel material quantity in the fuel debris based on the detector responces of the non-destructive assay simulation and on the fuel burnup calculation results.