September 2, 2011

Another Japanese nuke will soon be shut down. Sendai #2, a ~900 Mwe Pressurized Water Reactor plant will be shut down for periodic maintenance and inspection next week. The plant operators will begin reducing power output on Wednesday, and have the unit completely off...

August 31, 2011

Just for the record, JAIF’s daily plant status posting shows that, as of August 23, over 56,000 tons of waste waters have been decontaminated by the two clean-up systems now in full, continuous operation at Fukushima Daiichi. The volume of waters that remained...

August 26, 2011

Japan’s Prime Minister has resigned. Naoto Kan’s resignation comes 5 1/2 months since the March 11 trifecta of earthquake, tsunami and nuclear accident challenged his leadership and spawned accusations that he has mishandled the crisis. Kan was waiting for a...

August 24, 2011

TEPCO reports the new waste water treatment system, SARRY, was shut down Monday in order to remove a clump of sludge from piping in the system. The sludge was discovered due to a hot spot found by radiation monitoring. The system was out of service for 12 hours and no...

August 22, 2011

Before getting into updates for the weekend’s Fukushima (and related) events, something should be mentioned concerning JAIF’s posted pressure readings for units 1 & 2 RPVs. They don’t make any sense. The RPV pressures listed are below...

August 19, 2011

NHK World tells us that the “chief” of the Fukushima power plant didn’t know a backup cooling system for one of the plant’s reactors was manually shut down on March 11th. Plant manager Masao Yoshida was not told the system had been shut down to prevent it...

August 17, 2011

Mainichi Shimbun and NHK World report TEPCO’s staff never anticipated the possibility of hydrogen explosions during the nuclear emergency at Fukushima. The reports come from interviews with Fukushima’s operation’s officials being held by the...

August 15, 2011

Construction of the enclosure around unit #1 reactor building continues. World Nuclear News has given us some technical details of interest, “The sections of the steel frame will be fitted together remotely without the use of screws and bolts. All the wall panels will...

August 12, 2011

Massachusetts Institute of Technology has posted a report suggesting possible nuclear safety improvements out of the lessons learned from Fukushima. Unlike the recent NRC recommendations for safety improvements, all of MIT’s suggestions are specific to what...

August 8, 2011

This past weekend marked the 66th anniversary of the bombings of Hiroshima and Nagasaki. Our hearts go out to the survivors of both bombings, which we believe to be the greatest possible misuse of Einstein’s idea. The two disasters have been the greatest detriment to...

August 5, 2011

Continued monitoring near the unit #1 high radiation hot spots discovered earlier this week have confirmed a radiation field more extensive than previously thought. TEPCO has found the high levels of at least 10 sieverts/hr all along the venting pipe leading out of...

August 3, 2011

JAIF reports the Japanese government plans to begin wide-spread decontamination of the “no-entry” evacuation zone next month. Nuclear Crisis Minister Goshi Hosono says the goal is to eventually decontaminate the entire zone so that everyone can safely return to their...

August 1, 2011

NHK World says TEPCO has completed the fuel pool cooling system for unit #4. Initially, water is being pumped into the pool and not run through the installed water cooling component in order to bring the pool’s water level to full. Once the pool is completely filled,...

July 29, 2011

JAIF reports TEPCO is sending workers into reactor building #3 to visually inspect piping for damage. The robot sent into the building earlier this week showed images of “limited damage” to pipes and valves. The workers will be able to make assessments that are more...

July 27, 2011

The new waste water decontamination system recently developed by Toshiba is being shipped to Fukushima Daiichi. The new system has been given the acronym SARRY. It consists of 14 cylinders containing minerals that strip suspended and dissolved materials from the water...
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