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To: JimisJim who wrote (103198)6/18/2008 6:42:21 PM
From: Elroy Jetson  Respond to of 206326
 
That can be part of the solution, but even with thorium we're still lacking the hard costs to make the rational comparisons you should make prior to committing to a "major national program".

The energy cost problem will appear to recede in another six years and uneconomic decisions made in haste will be costly.
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To: JimisJim who wrote (103198)6/20/2008 1:44:14 AM
From: energyplay  Respond to of 206326
 
RE: Weapons proliferation risk with Thorium fuel cycle - It appears that is is possible to make working gun type device with U 233.

So the U233 can be chemically separated, and gun type devices are much simpler than the implosions needed for plutonium.

The U232 traces are highly radioactive, and emit very strong gamma rays (5 Mev) that will go through lots of shielding. This makes working with the U233 difficult, and hiding a bomb more difficult also.

But the thorium fuel cycle is not without risk.