Criticality control technique development for Fukushima Daiichi fuel debris, 56; Study on scale effect the drying behavior of fuel debris covered with water glass based neutron absorber

Suzuki, Seiya ; Arai, Yoichi  ; Watanabe, Masayuki; Kawano, Shohei*; Kawaharada, Yoshiyuki*

The water glass type neutron absorber has been developed as a measure to precaution of re-criticality during fuel debris retrieval at the Fukushima Daiichi Nuclear Power Plant. The drying test using the mock test piece was carried out in order to evaluate the effect on the drying behavior. In this report, the scale-up tests was shown.