[Elephant foot ?] Tepco collected highly radioactive sediment in reactor2 PCV, “0.2 Sv/h of γ and β”

Tepco collected highly radioactive sediment in reactor2 PCV, "0.2 Sv/h of γ and β"

On 7/8/2013, Tepco conducted the soundness inspection of reactor2 TIP guide pipe.

This is their second attempt. They failed in the first attempt (2/25 ~ 2/28/2013) to have 4 fiberscopes stuck in the pipe.

(cf, Tepco failed in installing thermometers into reactor2, “4 fiberscopes all stuck in the pipe” [URL])

This time, Tepco inserted 9.6m of dummy TIP cable into PCV but didn’t reach pedestal.

After pulling off the cable, they found an unverified sediment on the top of the cable.

From Tepco’s photo, the color is gray gold. γ dose was 5 mSv/h, γ & β dose was 0.2 Sv/h.

 

 

2 Tepco collected highly radioactive sediment in reactor2 PCV, "0.2 Sv/h of γ and β"

 

3 Tepco collected highly radioactive sediment in reactor2 PCV, "0.2 Sv/h of γ and β"

 

4 Tepco collected highly radioactive sediment in reactor2 PCV, "0.2 Sv/h of γ and β"

 

5 Tepco collected highly radioactive sediment in reactor2 PCV, "0.2 Sv/h of γ and β"

 

6 Tepco collected highly radioactive sediment in reactor2 PCV, "0.2 Sv/h of γ and β"

 

http://www.tepco.co.jp/nu/fukushima-np/handouts/2013/images/handouts_130708_05-j.pdf

 

 

The mass media blind us by reporting thousands of irrelevant news

_____

Français :

[Pied d’éléphant ?] Tepco ramasse un sédiment hautement radioactif dans la PCV2 : 0,2 Sv/h de γ+β

 

Tepco collected highly radioactive sediment in reactor2 PCV, "0.2 Sv/h of γ and β"

Le 8 juillet 2013, Tepco a procédé à une inspection de fiabilité du tuyau guide de TIP (= sonde traversière du cœur)  du réacteur 2.

C’est leur deuxième tentative. La première avait échoué (25 ~ 28 février 2013) en coinçant 4 fibroscopes dans le tuyau. (cf. Tepco n’est pas arrivé à installer des thermomètres dans le réacteur 2 : Les 4 fibroscopes coincés dans les tuyaux)
Cette fois Tepco a inséré un câble de 9,6 m en TIP factice dans la PCV (Enceinte de confinement primaire) mais n’a pas atteint le piédestal.
Après avoir retiré le câble ils ont trouvé un peu de sédiment boueux collé au bout du câble.
Sur la photo de Tepco la boue est de couleur gris-doré. la dose en γ était de 5 mSv/h, celle en γ+β de 0,2 Sv/h.

2 Tepco collected highly radioactive sediment in reactor2 PCV, "0.2 Sv/h of γ and β"
3 Tepco collected highly radioactive sediment in reactor2 PCV, "0.2 Sv/h of γ and β"
4 Tepco collected highly radioactive sediment in reactor2 PCV, "0.2 Sv/h of γ and β"
5 Tepco collected highly radioactive sediment in reactor2 PCV, "0.2 Sv/h of γ and β"
6 Tepco collected highly radioactive sediment in reactor2 PCV, "0.2 Sv/h of γ and β"

http://www.tepco.co.jp/nu/fukushima-np/handouts/2013/images/handouts_130708_05-j.pdf
La grande presse nous aveugle de centaines de nouvelles sans intérêt.

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.

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