Radiation at No. 2 spent fuel pool millions of times above normal & thousands of times higher than troubled No. 4 pool

Tuesday, April 19, 2011
By Paul Martin

ENENews.com
April 19th, 2011

Tepco starts to pump out turbine unit, Japan Times, April 19, 2011:

… Monday night, Tepco said it detected high radioactivity coming from the spent fuel pool of the No. 2 unit, indicating that either the fuel rods in the pool were damaged or steam containing radioactive materials that rose from the reactor dissolved in the pool water.

Some 160,000 becquerels per cubic cm of cesium-134, 150,000 becquerels of cesium-137 and 4,100 becquerels of radioactive iodine-131 were detected in a water sample extracted from the storing pool on Saturday.

Read the report here.

No. 2 Reactor Spent Fuel Rods May Be Damaged, Jiji, April 19, 2011:

Tokyo Electric Power Co. said Monday that spent nuclear fuel rods at the No. 2 reactor at its crippled nuclear power plant may be damaged although damage levels have yet to be known.

The company said its examination of water in a tank connected to the spent fuel pool of the reactor at the Fukushima No. 1 plant, ravaged by the March 11 quake and tsunami, found 4,100 becquerels of radioactive iodine per cubic centimeter and 4,000 to 160,000 becquerels of radioactive cesium.

The radioactive cesium levels are extremely high, company official Junichi Matsumoto said. The company believes the levels, compared with data on leaks from the reactor vessel, indicate that spent fuel rods have been exposed and damaged. The spent fuel pool contains 615 fuel assemblies.

However, the industry ministry’s Nuclear and Industrial Safety Agency believes the detected radioactive materials are likely to have leaked from the reactor vessel.

The agency explained that it is implausible to associate the high concentration of iodine-131, whose half-life is short, with spent nuclear fuel rods, which are stored for a long time.

The Rest…HERE

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