as it does pass through a reactor.
It
must have its isotopic compostion changed and there is really just
one way to do that, run it through a reactor.
The Russian contention that plutonium, including weapons plutonium, is a
resource goes back to the earliest disarmament negotiations. They have a point, since 250 metric tons of plutonium represents 19 exajoules of energy, about 4% of the annual energy demand of the entire planet from all forms of energy, coal, oil, gas
combined. Put another way, burning this plutonium could meet the entire planetary energy demand for about half a month.
From a purely technical standpoint, this plutonium does offer significant breeding capacity, allowing for the production of more plutonium, and even better,
isotopically denatured plutonium or better, U-233 from thorium.
In any case, plutonium pits for nuclear weapons wherever they exist on earth must be chemically dissolved from their machined form. They should be separated from the gallium, and ideally processed in reactors so as to make access to them far more difficult.
Personally if I were the Russians, I wouldn't deal too much with the United States on ths issue either. The deal was negotiated by the Clinton administration, which was
sane. Putin, not an especially nice guy himself, just sat in a room with Bush. Clearly from the amount of open ridicule Putin laid on Bush, Putin holds Bush in contempt. On this alone, Mr. Putin and I agree. I don't like Putin; I don't trust him; but I think he is sane enough to know that Russia has
nothing to gain anymore by a partnership with the US on any issue, especially one involving the handling of important nuclear materials. The Bushies are clearly
liars and everyone on earth is now aware of this fact. I certainly do not trust the Bushies with weapons grade plutonium.
In fact, I don't believe that weapons grade plutonium should exist anywhere, which is part of the reason I so vocally support nuclear power.
Of course, I know what the intent of this thread is, which is to promote the
Greenpeace perspective on weapons grade plutonium, which is just to hold one's infantile breath, until all the infants in question fall down after turning blue, upon which the plutonium will just magically go away or turn into magic solar cells.
However, this
weapons grade plutonium exists. The
best we can do with it is to transform it into
reactor grade plutonium. The best solution for it is the old adage of swords into ploughshares. It will be as true in 2000 years as it is true today: There is effectively only one way to destroy plutonium, which is to fission it.
As opposed to the Greenpeace perspective, sane people want the plutonium run through a reactor, all 250 metric tons of it, that covered by treaty and that still in weapons pits and as yet uncovered by
any treaty. Sane nations have taken a close look at how to manage their plutonium inventories, and what forms it should take.
Here is just one blurb out of many tens of thousands, on some sane plutonium management approaches:
http://www.cea.fr/gb/publications/Clefs46/pagesg/clefs46_36.htmlFrance is weighing stabilizing its plutonium inventories at about 400 metric tons, with the plutonium having an isotopic distribution that contains less than 40% Pu-239 as opposed to weapons plutonium which has (typically) an isotopic purity of >90% Pu-239. This is an excellent risk minimized approach and allows for the commercial advantages of plutonium without much of the weapons risk. Multi-fuel cycles of the CORAIL type and CONFU type are very promising and sane people hope that all weapons plutonium will end up in the types of inventory that such fuel cycles will create.
Many of these cycles will actually
reduce the radiotoxicity of the planet more than would have been the case if uranium ores were simply left in place. It will take about one millenium to accomplish this. Of course, if nuclear reactors do
not run on this planet for a millenium, there is a distinct possibility that humans will
not exist.
A graphic demonstration of this
fact is given on slide 16 of this presentation:
http://aaa.nevada.edu/pdffiles/Microsoft%20PowerPoint%20-%20Safa.pdf