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RE: I love high-level nuclear waste and want some in my yard
Nuclear fuel in a reactor is protected with a 12"
thick pressure vessel, a confinement structure around
the reactor, and then the containment dome.
If you want to plow a plane into a plant, good luck
getting through all those barriers. I personally do
not think one would succeed with our (USA) reactor
designs.
Spent fuel contained in dry casks is surrounded by
quite a bit of metal that has been tested by being
rammed into a wall, t-boned with a locomotive, dropped
from a helicopter, having explosives set off beside
them, etc.
The only problems noted with any casks during all of
these tests that I know of was a cask which had some
of it's lead melt because of a poor design - but that
was corrected. Incidentally, no simulated loss of
material occurred even in that instance. Maybe
someone a little more intimate with those tests knows
otherwise - if so, please fill me in.
I therefore do not see any credible threat to spent
fuel casks as they sit on site. As such, although one
could make the argument that reactor fuel is more
protected due to more barriers (3 vs. 1), the fact
that spent fuel casks provide more than adequate
protection against very severe accidents makes the
comparison a moot point. I guess it's like asking
which car can drive at 25 MPH better, a Porsche or a
Hyundai. They both get the job done although one does
it with a little more style.
If we are to get serious with non-proliferation
issues, we need to look at ourselves first. Although
we lag behind in nuclear technology (look at S. Africa
of all places - getting on track to build a couple
PBMR's with Exelon...) from the rest of the world, we
still need to set an example of
proliferation-resistant waste disposal. We are not
re-processing - that is a step but there also exists
proliferation-resistant re-processing techniques.
Before, the Pu went one way, the U went another, and
everything else went yet another but that is not
necessarily the case now. Fissile material goes one
way and waste goes another. With only about 3% of
spent fuel actually being "waste" it just makes sense
to reprocess.
Another possibility is MOX fuel. Sure this is
controversial, but spike it with some nasty,
long-lived strong alpha emitters and problem solved.
Mix in some burnable poison and you're even further on
the road to proliferation-resistant fuel - plus, we
get rid of some SSNM and SNM in the meantime (and it
becomes really proliferation-resistant after it comes
out of the Rx).
Yucca mountain just makes sense. I've read much of
the EIS (not all, I'm not that much of a sadist) and
while I disagree with a few points in it, I agree with
the general conclusions.
Let's start becoming examples for the world to see
that we are serious about proliferation issues and
start at home. MOX fuel and Yucca Mountain are just a
start and will make the entire world that much of a
safer place to live.
Regards,
Timothy C. Steadham, P.E.
P.S. Since re-processing in the USA is all but dead,
why not seal the casks permanently (e.g. weld the lid
shut - a good friction weld should work)? Any
thoughts on the issue?
--- "Estabrooks, Bates (IHK) " <IHK@Y12.doe.gov>
wrote:
> Ruth Weiner noted:
>
>
> > Finally, support of Yucca Mountain is not
> newsworthy and not lurid. By
> > supporting the project one cannot conjure up
> images of death and
> > devastation, the way one can by opposing it.
> >
> > Ruth Weiner, Ph. D.
> > ruthweiner@aol.com
> >
> >
> Regrettably, the reality of the situation may be
> quite different. In light
> of events of recent months, dry-cask storage of
> spent fuel at nuc. plants
> can readily conjure up these images. Correct me if
> I'm wrong, but current
> spent fuel storage doesn't benefit from the same
> hardened structure that the
> reactor does with its containment. Years back, I
> spoke to citizen's groups
> in Santa Fe trying to help them understand that
> drums of waste at LANL were
> a bigger risk than drums of waste at WIPP. In my
> mind, just as the public
> is safer with TRU waste underground at WIPP, it's
> safer with spent fuel at
> Yucca. I stand open to correction.
>
> BTW, Ruth, what about Anna Karenina's mind reflects
> something that we would
> hope most (all) women should have/be? As I recall,
> she had a very
> unpleasant, self-appointed, rendezvous with a
> locomotive. :-(
>
> Respectfully,
>
> Bates Estabrooks
>
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