The advantage that fusion has over fission is that there is no runaway effect. In the general case, if something goes wrong then the reaction fails. Also, in most modes that I've heard of, the by-products are MUCH safer, usually not radioactive. Sure the facility is likely to be unusable after an incident, but there is no fallout and it doesn't dose half the continent with radioactive dust.
the only worry about fusion is that it could rapidly converge into higher elements and become unstable to the point where it impodes or explode.
There seems to be a lot of misunderstanding about this process, perhaps because of the tone of the original posting. The ICF process is about as safe as it gets - it just can't implode and it is intended to explode. The amount of radiactivity in each tiny glass ball is very small - the system is fundamentally safe - as soon as anyhting goes wrong it will just stop working. The problems Yuri.. and DAB mention are discussed in https://lasers.llnl.gov/programs/ife/how_ife_works.php
I'm not saying that this system is the complete answer but it deserves serious discussion - the maths is a LOT more credible than that supporting windmills and wave machines.
I did not mean to imply that I was against using the Fusion process, I am not. I have watched the progress from the very early stages and the ability to use lasers to induce a fusion reaction may indeed be near break even or better. If all goes as envisioned, an abundant source of world energy could be at hand.
That said, as a Systems Engineer, I know that there are always unexpected consequences of opening new technology. We have come a long way with using Fusion, but I was just reminding everyone that we still have much to learn. The Sun has many unique properties that supports sustained Fusion reactions. I am not sure if we can account for all of them in a closed environment.
I really hope it does work, but I have waited forty years to see them demonstrate a safe way to use the technology. So far, I have been disappointed at the progress.
Thanks
DAB
Hello Dylan, I'm sorry but you have missed the point of ICF altogether - there is no attempt to hold a fusion plasma together for even mS. Each tiny bead is fired by a new laser burst - stability is neither attemped or required. The inertial containment is the mass of the material in the bead (way less than 1gm). Every bead explodes, it just can't implode. The idea is quite a lot different from the attempts ot constrain a plasma by huge magentic fields.
The downside (as I see it with limited knowledge) is that it is a discontinuous process and that the energy comes out in bursts of very high energy neutrons and must be collected by a molten lithium surround. But some of the neutrons will get out through the holes for the beads and lasers to enter etc etc. so the engineering to get the whole thing to work is far from trivial.
Why do people talk of fusion reactors as being miniature suns? Fusion reactors burn tritium and deuterium. The sun fuses ordinary hydrogen. Totally different fuel, totally different confinement, totally different reaction rates. In fact the sun's specific power, even at the very core, is an order of magnitude lower than that of fermenting beer 7206.contentimage_4751.png
Hi Derek,
I concur, too many people see mushroom clouds at the first mention of using nuclear energy in any form. The fact that it can be used to destroy does not mean that we can not harness the energy from these normally occuring reactions for be benefit for all.
Without nuclear fission and fusion, there would be NO life in the universe.
Think about the power of fusion the next time you see one of the anti-nuke proponents at the beach. An hour in sunlight produces more radiation exposure than most people get from any nuclear power plant.
All we are and all that we shall ever be is the result of the basic nuclear reactions occuring since time began!
Thanks
DAB
Not quite since time began - more like 3 minutes later. 3681.contentimage_1.png
Not quite since time began - more like 3 minutes later. 3681.contentimage_1.png