Crawler inspector found extremely radioactive “something” on the bottom of suppression chamber Reactor2

On 9/30/2014, Tepco published the video record of Reactor2 taken by the crawler inspector.

It is a part of the coolant system, “S/C (suppression chamber)” of Reactor2. The inspector robot crawled on the outer wall of it.

The video record caught noise as it moved toward to the bottom of S/C to suggest the bottom of S/C is extremely radioactive for some reason.

Tepco is going to analyze the noise to estimate the actual radiation level.

From Tepco’s official statement, Reactor2 didn’t experience an explosion. However this inspection suggests something highly contaminated moved from the reactor to S/C.

Also, the robot fell off at 120° point on the outer wall for 3 times. The cause is not verified yet but there is a possibility that the outer wall of S/C has a significant damage on that point.




Français :

Le robot inspecteur a découvert “quelque chose” d’extrêmement radioactif au fond de la salle pressurisée du réacteur 2


Le 30 septembre 2014, Tepco publie un enregistrement vidéo du réacteur 2 pris par le robot quadrupède.

C’est dans une parie du système de refroidissement, la “S/C (suppression chamber)”, salle pressurisée du réacteur 2. Le robot d’inspection a rampé sur son mur extérieur.
L’enregistrement vidéo a pris un bruit alors qu’il avançait vers le fond de la S/C ce qui suggère que le fond de la S/C est extrêmement radioactif.
Tepco va analyser le bruit pour estimer le véritable niveau de radioactivité.
Selon le communiqué officiel de Tepco, le réacteur 2 n’a pas connu d’explosion. Néanmoins, cette inspection suggère que quelque chose d’extrêmement radioactif s’est déplacé depuis le réacteur jusqu’à la S/C.
En outre, le robot a dévissé trois fois à 120°sur le mur extérieur. la cause n’en est pas encore établie mais il est possible que le mur extérieur de la S/C soit sérieusement endommagé à cet endroit.

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.


October 2014