APR: your source for nuclear news and analysis since April 16, 2010

Thursday, March 24, 2011

NISA briefing

Well, the most alarming thing that came out of this briefing is the confirmation that the water in the No. 3 plant turbine building does in fact have TEN THOUSAND times the activity of normal primary coolant. NISA has just admitted that this indicates serious fuel damage. If my correlation is right, the water down there is about 105 microcuries per milliliter. Not any ten to the minus anything. That's mind blowing.

Details on each plant really have not changed in terms of what was briefed. However, it was made clear in the case of every reactor and every fuel pool that it's highly desired to switch to fresh water instead of sea water as soon as possible.

Document details to come.

10:00 PM Eastern Thursday 3/24


  1. I'd be interested in any comments you have on this article.

    And this one, particularly the 99,000 lbs of salt.

  2. i couldnt understand one thing that why wasnt there any alarms or suggestions or advices from the nuclear scientists all over the world,though i was confused, first, when i heard sea water is allowed into the reactor,i expected that a problem will be arise which would be severe,though i couldnt point out specifically at that time.one of the thing was that ,scales would be formed on the reactor which would in reverse will effect the cooling system of the reactor,and these scales would immediately develop cracks into the walls.even if they scales are chelated the surfaces would be damaged.so there was a lapse of technical feedback and also lapse to analyse the after affects of sea water into the chamber.but yes now i see the sea water is eating the walls,which will happen even if its heated or not.

  3. And also corrosion is basically the most damaging functionality of sea water,why was this not made a point at the time of action by Nuclear analysts outside Japan.

  4. There's just no telling how much salt may be deposited yet. Salt water is used as a last resort when there is no more fresh water and you have to either take a last stand to prevent a core melt or else try to contain a suspected core melt by flooding the drywell with salt water. Now that fresh water is again available, it's being put into No. 1 and No. 3 with No. 2 probably to follow soon.