Tepco admits molten nuclear fuel is transferred in multiple places of Reactor 2

Following up this article.. Tepco to scan Reactor 2 with Muon again after Nagoya uni already confirmed nothing remaining [URL]


Tepco admitted the molten fuel is transferred to multiple places in Reactor 2 by 6/30/2016.

Tepco had been implementing the muon scanning investigation with KEK (High Energy Accelerator Research Organization).

Tepco describes the research result as it is highly likely that major part of the molten nuclear fuel remains in the bottom of the reactor with structures of the inside of the reactor. They also detected a part of the molten fuel on the wall of the reactor. This means the molten fuel was separated and remaining in different locations. Tepco did not mention the percentage of the detected fuel.

Tepco did not identify the location either so it is not clear if the fuel remains inside of the Reactor Pressure Vessel or its outer structure, Primary Containment Vessel.






Français :

Tepco reconnaît que le combustible fondu s’est réparti en plusieurs endroits du réacteur 2


Article lié : Tepco re-sonde le réacteur 2 aux muons après que l’univ de Nagoya ait confirmé qu’il ne reste plus rien

Le 30 juin 2016, Tepco reconnaît que le combustible fondu s’est réparti en plusieurs endroits dans le réacteur 2.

Tepco a effectué une recherche en balayage aux muons avec le KEK (High Energy Accelerator Research Organization).
Tepco décrit les résultats de cette recherche en disant qu’il est hautement probable que la majeure partie des combustibles nucléaires fondus soient restés au fond du réacteur, à l’intérieur de ses structures. Ils ont aussi détecté une partie des combustibles fondus contre un mur du réacteur. Ceci signifie que le magma a éclaté en plusieurs morceaux, restés en différents endroits. Tepco ne précise pas le pourcentage de combustible fondu qu’ils ont pu détecter.
Tepco n’identifie pas non plus les endroits, donc on ne peut être certain que le combustible fondu soit entièrement resté dans l’enceinte pressurisée du réacteur ou en dehors dans l’enceinte de confinement principale.


About this site

This website updates the latest news about the Fukushima nuclear plant and also archives the past news from 2011. Because it's always updated and added live, articles, categories and the tags are not necessarily fitted in the latest format.
I am the writer of this website. About page remains in 2014. This is because my memory about 311 was clearer than now, 2023, and I think it can have a historical value. Now I'm living in Romania with 3 cats as an independent data scientist.
Actually, nothing has progressed in the plant since 2011. We still don't even know what is going on inside. They must keep cooling the crippled reactors by water, but additionally groundwater keeps flowing into the reactor buildings from the broken parts. This is why highly contaminated water is always produced more than it can circulate. Tepco is planning to officially discharge this water to the Pacific but Tritium is still remaining in it. They dilute this with seawater so that it is legally safe, but scientifically the same amount of radioactive tritium is contained. They say it is safe to discharge, but none of them have drunk it.


July 2016