Alternative Reactor Design

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Richard Hull
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Re: Alternative Reactor Design

Post by Richard Hull » Sun Jan 07, 2018 4:09 pm

There remains no source of continuous, un-interrupted, intense, stable neutron flux on earth, other than a functioning fission reactor..... Period!
Fusion??? Phooey......

Nothing on this planet breeds fission or fusion fuel like a real fission reactor. All other neutron sources don't rise to the elevated level of even dis-honorable mention. At best, they are struggling little putt-putt boats in a child's bathtub in comparison.

Richard Hull
Progress may have been a good thing once, but it just went on too long. - Yogi Berra
Fusion is the energy of the future....and it always will be
Retired now...Doing only what I want and not what I should...every day is a saturday.

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Rich Feldman
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Re: Alternative Reactor Design

Post by Rich Feldman » Tue Jan 09, 2018 10:32 am

There are some world-class accelerator based neutron sources that get pretty darn close (as laboratory beamlines for studying materials or basic physics). When high neutron fluences are needed for production processes, whether breeding fuel or doping silicon ingots, the work has to be within or very close to a fission reactor core, like Richard said.
fluxes.JPG
Found that in a paper written by a spallation enthusiast: http://www.iaea.org/inis/collection/NCL ... 099436.pdf
It also has a tantalizing mention of pulsed fission reactors.
flux2.JPG
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Re: Alternative Reactor Design

Post by JoseRey » Tue Jan 09, 2018 9:10 pm

Rich Feldman wrote:
Tue Jan 09, 2018 10:32 am
There are some world-class accelerator based neutron sources that get pretty darn close (as laboratory beamlines for studying materials or basic physics). When high neutron fluences are needed for production processes, whether breeding fuel or doping silicon ingots, the work has to be within or very close to a fission reactor core, like Richard said.

fluxes.JPG
Found that in a paper written by a spallation enthusiast: http://www.iaea.org/inis/collection/NCL ... 099436.pdf
It also has a tantalizing mention of pulsed fission reactors.flux2.JPG
But spallation sources typically don't work continuously but pulsed, so background measurements can be taken and compared to those with the pulse.

Integrated over time the amount of neutrons produced by a spallation installations is much lower that a fission reactor, but they are ok to test products, processes and instruments, for continuous breeding a fission reactor can't be beaten, it's only necessary to have a right place to put your stuff.

Anyway, fusors neutron output is soooo low that it's basically useless, and theoretical big fusion reactor would harvest the kinetic energy, to create electricity, so they aren't suited either

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Richard Hull
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Re: Alternative Reactor Design

Post by Richard Hull » Tue Jan 09, 2018 9:37 pm

Thanks for recognizing that I was talking about absolute, 100% continuous neutron flux systems that are start'em up then walk away for months, years with a good stable flux. Only one exists....Fission reactors. Waste heat makes electricity. Fission reactor neutrons can make more fission and fusion fuel if you've got the guts to breed while putting out a giga-watt or more of electricity. About as straight forward a continuous, useful, neutron source as man will have into the very distant future.

Currently, we have no guts and therefore, will have no glory

Richard Hull
Progress may have been a good thing once, but it just went on too long. - Yogi Berra
Fusion is the energy of the future....and it always will be
Retired now...Doing only what I want and not what I should...every day is a saturday.

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