The announcement of TEPCO and government officials in Japan have reached a state of “cold shutdown” reactor of Fukushima Daiichi Nuclear Power Station is misleading information. There can be no “cold shutdown” if the reactors are merged. The terminology refers, in fact, the normal state of a reactor – not damage – in which the pressure vessel (vessel) can be opened and the reactor cooled with pressurized water at a temperature below 100 ° C. A condition far removed from what we have in Fukushima, the three reactors are fused at all (as you think of No. 1) or partially (as estimated in the case of 2 and 3).
The reality is that TEPCO has no idea what happens inside the reactors, apart from controlling the temperature. Only in the reactor 3 is a tool to measure the presence of fission products (such as gas xenon), which can indicate whether the spontaneous fission is happening or not. There’s no tool like this in the reactor 2 and 1.
Nowhere, then, there is a gauge of neutrons, which would give a direct measurement of the fission, or TEPCO has a picture of where precisely the time and how much fuel is in fact this time (there are estimates, but no measures ). The only news that is certain is that the water inside the reactor has stopped boiling.
This announcement only serves to TEPCO soothe and cover the failure to manage the security of citizens. But the emergency continues.
The reality tells us the the director of Greenpeace Japan, Junichi Sato:
Radioactive material is still leaking from the site, and do not know the exact state of tons of fuel inside the reactor zone. Tens of thousands of tons of highly contaminated water are still in reactors and in buildings that contain the turbines, with losses also occurred in the sea last week. The constant threat posed by radiological Fukushima nuclear disaster is enormous.
Many people continue to be at risk for radiation disaster without receiving adequate support. At a distance of nine months who have seen their homes and towns contaminated by radiation are still waiting for help from the government and compensation by of TEPCO. So far, only thirty-five homes were decontaminated, the thousands affected in the city of Fukushima. The more recent analysis conducted by Greenpeace show that there are still many parts of the city of Fukushima contaminated and decontamination efforts have so far been inadequate.