Free Republic

Two Other Reactors Suffer Serious Damage By MITSURU OBE TOKYO—Substantial damage to the fuel cores at two additional reactors of Japan's Fukushima Daiichi nuclear complex has taken place, operator Tokyo Electric Power Co. said Sunday, further complicating the already daunting task of bringing them to a safe shutdown while avoiding the release of high levels of radioactivity. The revelation followed an acknowledgment on Thursday that a similar meltdown of the core took place at unit No. 1. /snip The pressure vessel a cylindrical steel container that holds nuclear fuel, "is likely to be damaged and leaking water at units Nos....

April 6, 2011 Core of Stricken Reactor Probably Leaked, U.S. Says By MATTHEW L. WALD and ANDREW POLLACK WASHINGTON — The United States Nuclear Regulatory Commission said Wednesday that some of the core of a stricken Japanese reactor had probably leaked from its steel pressure vessel into the bottom of the containment structure, implying that the damage was even worse than previously thought. The statement came as the Tokyo Electric Power Company, the operator of the Fukushima Daiichi plant, started to inject nitrogen into the reactor containment vessel of unit No. 1 to prevent a possible explosion. The Nuclear Regulatory...