[Reactor1] Dosemeter indicated 10.3Sv/h and spiked to 1,000,000 Sv/h to be out of order
Following up this article..You can’t work longer than 30 mins in reactor1 because of too much radiation
The detailed data of the endoscope operation [LINK] was published.
The dose meter indicated 10.3 Sv/h near the surface of flooded water, which is 10 times higher than the radiation level measured in the basement floor of reactor2 and 3.
However, when they put the dosemeter deeper than 2m in water, it indicated 100,000~1,000,000 Sv/h and it stopped decreasing though it was lifted up. Tepco states the dosemeter went out of order.
Transparency of water was only 60cm. The pipes are severely rusted because of sea water.
In this circumstance, the total dose of a nuclear worker reaches the 50mSv of the yearly limit within 20 seconds, start having acute radiation symptom within 6 minutes such as nausea and die in an hour.