デブリ取り出しへ、研究炉再開　福島第１原発事故受け改造―原子力機構

　日本原子力研究開発機構（ＪＡＥＡ）は２日、茨城県東海村の研究施設で、研究炉「ＳＴＡＣＹ」の運転を開始したと発表した。東京電力福島第１原発事故で溶け落ちた核燃料（デブリ）を安全に取り出す研究を進めるために改造。約１４年ぶりの運転再開となった。
　１９９５年に運転を開始したＳＴＡＣＹは、２０１０年まで使用済み核燃料の再利用に関する研究で使用されていた。福島第１原発事故後はデブリの研究に使えるよう改造。昨年１２月に完成した。（2024/08/02-14:26）

The Japan Atomic Energy Agency has started experiments at its Stacy research reactor for the removal of nuclear fuel debris, the agency said Friday.
   The reactor, located in the village of Tokai, Ibaraki Prefecture, northeast of Tokyo, was upgraded for the research to develop a method to remove safely nuclear fuel debris at Tokyo Electric Power Company Holdings Inc.'s meltdown-stricken Fukushima No. 1 nuclear plant.
   The experiments put the reactor back into operation for the first time in 14 years.
   Stacy, which entered into service in 1995, engaged in research on recycling of spent nuclear fuel. Following the 2011 meltdowns at the Fukushima plant, Stacy was remodeled for tests on nuclear debris removal, with the work completed in December last year.
   In the Fukushima No. 1 to No. 3 reactors, nuclear fuel rods and structures around them melted together to form debris, estimated at some 880 tons in total.