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136 comments on An exercise in civil discussion

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Everett on December 10, 2005 - 12:12pm Permalink | Subthread | Parent | Comments top
Fusion is not the only power source with this kind of potential.  Fast spectrum (FS) fission reactors tap into an energy supply many times larger than all of our carbon resources put together.  Unlike fusion, we know how to make FS reactors work and we could start building a commercial FS reactor almost immediately.

The FS reactor can burn the uranium and plutonium from the spent fuel of our first generation reactors.  There is enough of this around that even with a power grid based entirely on FS reactors, we would not need to mine any uranium for over a century.

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Agric on December 10, 2005 - 10:29pm Permalink | Subthread | Parent | Comments top
I'd not heard of that, nor is there much online at first glance (Google for "fast spectrum fission" yielded 3 hits, 2 space flight related, one fusion related!), do you have any informative links?
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Everett on December 11, 2005 - 1:28am Permalink | Subthread | Parent | Comments top
Fast spectrum refers to a fast neutron spectrum.  This is in contrast to the slow neutron spectrum used in current commercial reactors.

Here is a link to the Integral Fast Reactor (IFR), maybe the best example of a fast spectrum reactor.
http://www.nuc.berkeley.edu/designs/ifr/anlw.html

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Agric on December 11, 2005 - 8:10pm Permalink | Subthread | Parent | Comments top
Thanks, it sounds similar to the 'fast breeder reactors' that UK was experimenting with a few decades back, am I correct in that?

Certainly promising but why is it there is so little discussion of implementing this technology? I would have thought it could be done commercially now, and with the price of U235 going through the roof and its apparently failsafe operation it should be very economically viable. China is building lots of nuclear powerstations but, as far as I know, the most advanced are planned to use a pebble bed version of standard technology.

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136 comments on An exercise in civil discussion

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