Title: Tour of Fukushima Daiichi
Source: Fairewinds Energy Education
Date: October 3, 2013
At 10:15 in
Arnie Gundersen, Fairewinds Chief Engineer: Also outside [the Fukushima Daiichi Unit 3] building, fuel pellets were found in the aftermath of the accident. Now, those were bulldozed under, but that should be an indication of a major problem inside the fuel pool. I’ve been saying all along that I think Unit 3 had something called a prompt moderated criticality in the fuel pool and that particles of fuel would be found lying outside Unit 3 is an indication that that happened. If the fuel had come from inside the nuclear reactor, it would have had to go through the containment and through a very circuitous path, so to my mind its very unlikely […] we do know that very high sources were covered up with bulldozers early on after the accident and are likely still there.
My biggest fear on Unit 3 is that another earthquake will happen […] this building has been so damaged that it could topple and shatter from another significant earthquake.
Published: October 5th, 2013 at 4:54 pm ET
- Nuclear expert: Powerful explosion at reactor No. 3 may have been from “prompt criticality” in spent fuel pool (VIDEO) April 27, 2011
- Nuclear Engineers: Fukushima pool is “distorted” — Material blown up into air and came down heavy inside, damaging fuel — The roof fell in, of course things were distorted (VIDEOS) October 4, 2013
- Experts particularly concerned about weight of fuel in No. 4 pool in building with possible quake damage — Destruction blamed on Reactor No. 3 explosion February 20, 2012
- Nuclear Expert: Spent Fuel Pool No. 4 likely to shatter or collapse onto its side in a M7.0 quake (AUDIO) April 11, 2012
- Gov’t Report: Criticality suspected to have occurred in Fukushima fuel pool — Nuclear chain reaction after massive explosion at Unit 3 compressed fuel together? Concerned about ‘substantial damage’ to fuel (VIDEO) July 4, 2014