On Fri, Aug 3, 2012 PM, Eugen Leitl <span dir="ltr"><<a href="mailto:eugen@leitl.org" target="_blank">eugen@leitl.org</a>></span> wrote:<br><div class="gmail_quote"><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
> There are plenty of technical report on operation experience, or, rather, absence, </blockquote><div><br>Well, the last LFTR was shut down in 1969 so I admit there are not a lot of people with experience at operating one, although many more than have experience operating a power satellite. <br>
</div><div><br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">> CANDU </blockquote><div><br>CANDU is a solid fuel Uranium reactor. A LFTR is a liquid fuel Thorium reactor. Big difference <br>
<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">> proliferation risk of U-233,</blockquote><div><br>Proliferation is a vastly smaller problem with a LFTR and its U-233 than with a conventional reactor and its Plutonium for a number of reasons:<br>
<br>1) Theoretically you can do it but it's hard to make a bomb with U-233, much harder than with Plutonium, and in fact nobody has ever made a pure U-233 bomb; the closest was a Plutonium/ U-233 hybrid and the explosive yield was much less than expected, almost a fizzle. <br>
<br>2) In a LFTR U-233 will always be contaminated with U232 which gives off such intense Gamma rays it would screw up the bomb electronics, be easy to detect, and probably killed the terrorist long before he was half finished making it.<br>
<br>3) The U233 is completely burned up inside the reactor where its hard to steal, unlike existing reactors where used fuel rods are shipped to reprocessing plants to extract the Plutonium. In one case the potential bomb making material needs to be shipped across the country, with a LFTR it never leaves the reactor building. <br>
<br>4) A regular reactor produces lots of neutrons but a LFTR makes less of them, so it needs all that U233 to keep the chain reaction going, if you try stealing some the reactor will simply stop operating making the theft obvious. <br>
<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">> if you think corn prices doubling to tripling won't do a thing to Mexico and South America... they will.<br>
</blockquote><div><br>And one reason corn is so expensive is that idiotic renewable energy resource Bio-fuel; turning food into fuel is just not a good idea.<br><br> John K Clark <br></div><div><br><br></div></div>