Radiation levels in the Fukushima reactor are soaring unexpectedlyRadiation is at its highest since the 2011 meltdown.
by FIONA MACDONALD
The previous maximum radiation level recorded in the reactor was 73 sieverts per hour, a reading taken not long after the meltdown almost six years ago. The levels are now more than seven times that amount.
To get an idea of the radiation levels inside, the team used a remote-operated camera to take photos of the area - the deepest point in the reactor to date - and then analysed the electronic noise in the images to measure radiation levels.
The technique has an error margin of plus or minus 30 percent, which means that it's not highly accurate. But even at the lowest end of the measurements, the levels would still be 370 sieverts per hour - and could be as high as 690 sieverts per hour.
Source: Science Alert
http://www.sciencealert.com/radiation-l ... y-climbing
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