[Marxism] Technological optimism (was peak oil)
schaffer at optonline.net
Wed Oct 19 08:26:50 MDT 2005
Rod Holt wrote:
> The World Nuclear Association says, "Thorium, as well as uranium, can
> be used as a nuclear fuel. Although not fissile itself, thorium-232
> (Th-232) will absorb slow neutrons to produce uranium-233 (U-233),
> which is fissile. Hence like uranium-238 (U-238) it is fertile." I
> guess my statement was too abbreviated for general discussion? Thorium
> does accept a neutron. Then it decays to protactinium and then to
> uranium 233 which is fissle and produces neutrons. I think.
> A major application for conventional PWRs involves fuel assemblies
> arranged so that a blanket of mainly thorium fuel rods surrounds a
> more-enriched seed element containing U-235 which supplies neutrons
> to the subcritical blanket
right, this is "processing in place", Th 232 --> U233, and then this:
> . As U-233 is produced in the blanket it
> is burned there.
the key point is to have a bath of thermal neutrons from the U235 to
enable the conversion.
your comments on carbon - iron solutions was interesting, more on that soon.
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