Removed fuel assemblies 100 times more radioactive than normal — Tepco worker thinks it’s from before 3/11

Published: July 19th, 2012 at 10:58 pm ET
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July 19, 2012 tweets translated by Fukushima Diary:

@Happy11311

It took 2 days to take out the fuel assemblies from 7/18 to 7/19. I heard the radiation level was 2~3 mSv/h on surface of fuel assemblies. It is not so different from what I expected. They decontaminated them only by rinsing and wiping, but it could be lower if they decontaminated them more carefully.

@onodekita

200 ~ 300mREM/hr is quite high. The radiation level of normal new fuel assembly is only 1/100 of that ?

@Happy11311

According to Tepco’s official announcement, it was 50μSv/h after decontamination. It was 2mSv/h just after taken out. The reason why the radiation level was so high is they were cutting shroud on DSP side before 311, highly radioactive chips can be attached. I don’t think they are activated.

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Published: July 19th, 2012 at 10:58 pm ET
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42 comments

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42 comments to Removed fuel assemblies 100 times more radioactive than normal — Tepco worker thinks it’s from before 3/11