Fukushima-Daiichi Spent Fuel Pools Likely Contain Water
Recent satellite images and helicopter crews flying over Fukushima-Daiichi indicate that the spent fuel pools contain boiling water (which is not surprising, and boiling is a very effective way to shed heat) but that there is water. This means that the fuel can’t be nearly as hot as feared. This is a Very Good Thing!
UPDATE: The IAEA is reporting that the temperatures in the spent fuel pools at units 5 and 6 measured on 3/17 are around 62 to 65 deg C, significantly below boiling temp of 100 deg C. The last measurement of the temperature in the spent fuel pool at unit 4 was on 3/13 and was 84 deg C.