Commencing earlier this year, cargoes of radioactive
materials are being transported from Dounreay to Sellafield by train. These
consignments will contain materials suitable for being used in the production
of nuclear weapons. Armed guards
accompany each movement (as happened in the 1980s). A total of about 50 journeys are
proposed. For security reasons the times
of the trains are being kept secret.
Whilst armed guards may be all that would have been appropriate in the
1980s, now there are far bigger dangers.
Whilst in the past, a tree felled across the rail track causing a
derailment might have been considered the biggest danger, nowadays there is the
threat of explosives being placed on the line which could have far more
disastrous consequences. If such a
thing were to happen, whilst a nuclear explosion would not of course occur, if
the sabotage happened in a densely populated area, there is a strong likelihood
of widespread radioactive contamination.
The materials concerned are those left over from the
Dounreay Fast Breeder Reactor which closed in 1977. The Nuclear Decommissioning Authority is
anxious to get these to Cumbria
as soon as possible, as the Magnox reprocessing plant there is due to close in
2016/2017. There are still 32 tonnes of
"breeder materials" stuck inside the Dounreay reactor, which cannot
be accessed until the last of the Sodium Coolant is extracted. This was planned to have been done by
September 2002 yet here we are now with 32 tonnes still stuck inside the
reactor containing significant quantities of plutonium. All in all there are
109 tonnes of fuel still at Dounreay.
Some reprocessing of spent fuel was done in the past
at Dounreay and transported to Sellafield from Scrabster harbour in a vessel called
the "Kingsnorth Fisher". The
plutonium extracted was dissolved in acid and shipped in the form of plutonium
nitrate, which was described in a Royal Commission safety report as "an
exceedingly dangerous form in which to transport plutonium". On one journey the Kingsnorth Fisher was
struck by a storm in the Minches and suffered structural damage. Had the vessel foundered the consequences
would have been unthinkable.
The reprocessing planned will of course cause further
pollution of the Irish Sea and disperse radioactivity throughout the
environment.
Why may we ask is reprocessing of spent fuel to
extract plutonium still being done, considering that there are huge amounts of
plutonium already around which will never be used for any purpose and could
simply to classed as waste?
The answer to the question is a simple one. If it is reclassified as waste, it will become a liability on the Treasury's books.
Some useful reference links:
(1) NFLA Scotland'sResponse to the Dounreay Site End State Consultation,- January 2007
The answer to the question is a simple one. If it is reclassified as waste, it will become a liability on the Treasury's books.
Some useful reference links:
(1) NFLA Scotland'sResponse to the Dounreay Site End State Consultation,- January 2007