Criticality control technique development for Fukushima Daiichi fuel debris

Yasuhiro Harada

Presentation information

Oral presentation

III. Fission Energy Engineering » 301-1 Reactor Physics, Utilization of Nuclear Data, Criticality Safety

[3G01-05] Criticality Control Technique Development 3

Fri. Sep 15, 2017 9:30 AM - 10:50 AM Room G (C213 - C Block)

Chair:Kenichi Tada (JAEA)

10:15 AM - 10:30 AM

[3G04] Criticality control technique development for Fukushima Daiichi fuel debris

(40)Applicability of soluble neutron absorber

*Yasuhiro Harada^1,2, Makoto Nakano^1,2, Minefumi Matsui^1,2 (1. MHI, 2. IRID)

Keywords:Fukushima daiichi accident, fuel debris, criticality control, neutron absorber

We are developping criticality control system for the fuel retrieval work of Fukushima-daiichi unit 1/2/3. This paper shows how to keep the concentration of soluble neutron absorber to avoid re-criticality during debiris retrieval work.