“The skepticism in the face of what has not been proven, can quickly result in a prohibition on thinking.”
Forgotten: http://www.nzine.co.nz/features/rob_green3.html Robert Green spoke at the IPPNW 1996 Chernobyl congress. I have his speech about the atomic explosion in Chernobyl (PDF)
Source: Report on Hinkley Point from 1990 / Nuclear Safety – by Don Arnott (Chemist), Robert Green (UK, former Marine Commander) with the support of Matinez-Val and Richard Webb (Physicist and Engineer for Atomic Physics USA, developed Prototype of the Pressurized water reactor of Shippingport):
# The RBMK reactor at Chernobyl has prevented the explosion from getting bigger, which would have made Western reactors, arguing that the total closure under pressure would increased have the violence of the explosion.
# That is the problem of Western reactors: The control rods are made of a material -> cadmium-silver-indium. If something goes wrong, the control rods to melt first. It is likely that the control rods are rather lost before the core melts.
# The weight of the blown-up Chernobyl cover was 2000 tonnes (was not welded)
# Chernobyl was caused by an atomic explosion in the yield of about 0.3 kilotons (there are atomic weapons which are below) – there is no burst protection in the whole world for that.
# Each cooling tube has a safety valve that has the purpose of automatically releasing any excessive vapor pressure. The point is that these valves are above the reactor lid and below the charge-front. In addition, we have seen that shortly before the first steam explosion the lid of the fuel channels was lifted.
(…) In Western reactors, the damage would be much larger, with a high risk of an explosion of other reactors.
(…) If the industry is the possibility of a atomic explosion in the western AGR reactors, PWR and the breeder reactor at Dounreay can not exclude, these reactors do not meet the condition 152 of the British Nuclear Safety Authority: “The burst must be adequately include any radioactive matter which can be released in a reactor accident occurring.”
Ross Hesketh: http://www.independent.co.uk/news/obituaries/ross-hesketh-549777.html – Jack Harris “Central Electricity Generating Board nuclear metallurgist” accepts the view of his colleague Ross Hesketh of the nuclear explosion in Chernobyl: Page 7 http://www.spokesmanbooks.com/Spokesman/PDF/91Gifford.pdf
Don Arnott http://www.guardian.co.uk/news/2000/jan/13/guardianobituaries – supported the model of the atomic explosion at Chernoby
From the book “History of the British nuclear industry” by Margaret Gowing, “Britain and Atomic Energy”, on page 382 the former U.S. water-cooled graphite reactor at Hanford is described:
“To be built in view of the risks of an accident, the reactor is at an isolated location. Because water absorbs neutrons, and when the water flow is interrupted and the control rods do not occur immediately in action, the water evaporates in the cooling system and can no longer absorb the neutrons . These neutrons were therefore available to increase the fission rate in the reactor, which is super critical with power. The temperature rises, the fuel evaporated and the radioactivity is spreading widely. ”
On page 385 we find the position:
“The gas cooling is to avoid the risk of severe supercritical state …”
So the knowledge of the danger of a atomic explosion that can occur in a water-cooled graphite-gas reactor, is as old as the principle of the reactor itself.
# Would the people be aware that the Chernobyl explosion was an atomic explosion, it would attract the public to make a link between civilian and military atomic energy, which credibility and image of the nuclear industry would put an irreparable blow
# An atomic explosion in a reactor can rule out the provisions contrary to nuclear safety. Consequently, reactors should be shut down.
# Chernobyl reactor 4 had a design flaw, which was already known in 1983: Raising the control rods risked an extremely dangerous situation: The reactor could explode because of the emergency protection.
# Before the accident, the staff had sent a letter of the Chernobyl Block 4 to the head of the Soviet nuclear industry: The potential accident has been described. But the management didn’t tell the staff the possibility of a atomic explosion in the reactor, although the designers were aware of its accuracy. This situation exists in every major industrial plant in the world.
Prof. Juli Andrejey (Liquidator on Block 4, Chernobyl and Physicist) has seen the fuel elements – destroyed from the inside out. This couldn’t be done by a conventional explosion but rather by an atomic explosion.
Here are official radiation measurements: