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The familiar sounds of a rice farmer harvesting his crop in autumn returned to the Miyakoji district here on Oct. 8 for the first time in three years since residents were forced to evacuate due to the accident at the Fukushima No. 1 nuclear power plant.
“The golden scenery (of rice ears) fills me with emotion. I am happy. I hope that my rice harvesting encourages other residents in my district to restart their rice cultivation next year,” said Hisao Tsuboi, who was working a combine harvester in a field about 18 kilometers west of the Fukushima No. 1 nuclear plant. The reaping of rice marked the first time that it has been conducted in areas that had been previously designated no-entry zones due to the nuclear crisis triggered by the March 11, 2011, Great East Japan Earthquake and tsunami.
Do you mean what would happen if the fuel cells were to explode ? Or.. do you mean what would happen if they were blown up by Tepco in a controlled managed explosion?
Sorry for a making the next silly question, is there any possibility of exploding the fuel cells ? and what would be the consequences if that happened ?
The operator of Japan's crippled nuclear power plant says six workers have been exposed to highly radioactive water that poured out of a treatment unit when they removed a wrong pipe.
Tokyo Electric Power Co. said Oct. 9 that exposure to the workers, who were wearing face masks and protective gear, is believed minor but still under investigation.
Tons of highly toxic water spilled out in the incident, covering the facility's entire floor, TEPCO said.
The mishap is the latest in a spate of recent leaks and problems caused by human error that have added to public criticism of TEPCO's handling of the crisis.
As far as I know, you cannot get rid of radiation by blowing it up, it is just not destroyed or got rid of in that way.
The operator of Japan's crippled Fukushima nuclear plant is preparing to remove 400 tons of highly irradiated spent fuel from a damaged reactor building, a dangerous operation that has never been attempted before on this scale.
Removing the rods from the pool is a delicate task normally assisted by computers, according to Toshio Kimura, a former Tepco technician, who worked at Fukushima Daiichi for 11 years. "Previously it was a computer-controlled process that memorized the exact locations of the rods down to the millimeter and now they don't have that. It has to be done manually so there is a high risk that they will drop and break one of the fuel rods," Kimura said.
Each fuel rod assembly weighs about 300 kilograms (660 pounds) and is 4.5 meters (15 feet) long. There are 1,331 of the spent fuel assemblies and a further 202 unused assemblies are also stored in the pool,
"There is a risk of an inadvertent criticality if the bundles are distorted and get too close to each other," Gundersen said.
He was referring to an atomic chain reaction that left unchecked could result in a large release of radiation and heat that the fuel pool cooling system isn't designed to absorb
The rods are also vulnerable to fire should they be exposed to air, Gundersen said.
"The No. 4 unit was not operating at the time of the accident, so its fuel had been moved to the pool from the reactor, and if you calculate the amount of cesium 137 in the pool, the amount is equivalent to 14,000 Hiroshima atomic bombs," said Hiroaki Koide, assistant professor at Kyoto University Research Reactor Institute.
Lessons from Fukushima: Japanese Red Cross digital archive goes live
In a significant step towards sharing and building on the lessons of the Fukushima nuclear disaster, the Japanese Red Cross Society has launched an online nuclear disaster digital archive. Available at ndrc.jrc.or.jp... it makes available a range of material on its response and future preparedness, and is part of a wider nuclear disaster resource centre.
The platform documents the Japanese Red Cross Society’s experience since the triple meltdown, which followed a magnitude-9 earthquake on 11 March 2011, along with interviews with relief teams, and doctors and nurses from Red Cross hospitals.
Mr Tadateru Konoé, President of both the Japanese Red Cross Society and the International Federation of the Red Cross and Red Crescent Societies (IFRC), said he hoped the digital archive “can truly contribute to humanitarian assistance in nuclear disasters by helping us to learn from the past, cope with the problems at present, and prepare for the future”.