[LMB] reactor design
jdnicoll at panix.com
Mon Jan 7 19:43:51 GMT 2008
On Sat, 5 Jan 2008, David McMillan wrote:
> Stewart Dean wrote:
>> Found the NYTimes article I mentioned...from 1988...more than a few :( years
>> It /is/ uranium fueled but with the uranium is in high temperature
>> encased pellets instead of fuel rods. Thorium sounds better tho.
>> Re the graphite rods for safety shutdown...using these to immediately
> Graphite?!? Are you certain? B/c I could have sworn that graphite was
> a reaction *enhancer* -- IIRC, it slows down neutrons that would
> otherwise have been going to fast to stay inside the core and trigger
> more fusion reactions. I thought the control rods were made out of
> cadmium or some similar neutron-capturing material.
As I recall, the graphite was used as a tip on the control rods
because it made a good lubricant.
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