Citizens' Nuclear Information Center
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The first publicly disclosed leak during the active tests at Rokkasho reprocessing plant occurred at 3:40 am on 11 April 2006. Forty liters of radioactive fluid leaked from the hull rinser vessel, which is...
In September 2005 in Vienna the Chernobyl Forum released a report which estimated that around 4,000 people could have died or could die in the future as a result of exposure to radiation from...
Problem of damaged control rods spreads Major damage to control rods, including cracks in over 40 places, was first identified in Toshiba control rods at the Fukushima I-6 reactor on January 1st during a...
On August 16th all three reactors tripped automatically at Tohoku Electric Power Company’s Onagawa Nuclear Power Plant in response to a magnitude 7.2 earthquake off the coast of Miyagi Prefecture. The direct reason...
On June 8th it was confirmed that there had been yet another leak from the spent fuel storage pool (Figure 1) at the Rokkasho Reprocessing Plant. The location of the leak was a corner...
1. What was the Mihama-3 accident? Nearly a year has passed since a pipe ruptured in the secondary system of Kansai Electric Power Company’s (KEPCO) Mihama-3 reactor (PWR, 826 MW, commenced operation 1976). The...
This article begins with a follow-up on the report in NIT 101 about cracks in the Ohi-3 (PWR, 1,180 MW) reactor vessel head, then reports on the cracks that were discovered later in the...
The inescapable conclusion that must be drawn from the Mihama-3 accident is that the full length of the piping in nuclear power plants must be checked at regular intervals. This, however, is a conclusion...
Tombstones toppled by the earthquake. Tombstones have long been used as an idicator of the strength of earthquakes. They are still used to gauge the strength of earthquakes that occurred before seismic...
Five years have passed since the JCO criticality accident at Tokai Village. Two people died, compared to the five people who died in the Mihama-3 accident. At the time of the JCO accident Tokyo...