posted on Jun, 15 2016 @ 05:27 PM
a reply to: swanne
Researchers demonstrated that lithium-coated walls can handle temperatures exceeding 200 eV. The influx of lithium to the reactor's core is
expected to decrease as the plasma edges heat up to fusion-relevant temperatures. Also, because lithium is the lightest of all solid metals, if modest
amounts of lithium are sputtered, it does not impact performance.
The lithium sputtering decreases continuously at higher energies, up to temperatures of 10 keV or more.
ScienceDaily, June 15, 2016 - Hotter all the way: Lithium wall contains plasma
without cooling it
The plasma heats up and does touch the inside walls of nuclear fusion reactors. When that happens microscopic pieces of tungsten (most typical fusion
reactor material) are created. The effect is called, "sputtering". The particular item being discussed in this paper is using liquid lithium to coat
the walls of a tokomak. Because the densities between lithium and deuterium-tritium plasma are compatible the furthest out plasma does not lend heat
to the reactor wall. That keeps from having to add more energy into the system to heat the plasma back up.
What the article failed to point out is that the lithium wall also creates more tritium. They also do not explain how it is done (liquid lithium is
vaporized by another heating element and due to the magnetic fields generated to contain the plasma they are pushed up against the reactors wall). The
Lithium Tokomak Experiment (LTX) was carried out at the Princeton Plasma Physics Laboratory (PPPL). There was another demonstration of the same kind
of device (Liquid lithium limiter) at China's EAST reactor. Looks like liquid lithium is the winner!
And a two'fer!
ScienceDaily, June 15, 2016 - Supercomputers predict new turbulent interactions in
which talks about synergetic interference between small scale interference in the electrons and the larger ion interference. They
show they cooperate to keep cooling the plasma! The assumption was that the electron turbulences should not interfere with the larger ion one so it
was politely ignored. Shows that assumptions about "what you think you know" can cause you issues further down the line! This work was done at
All this talk about fusion makes me wonder what is going on. The MIT research was announced last year in August (I know it takes a while for a
technical announcement to be widely understood but this is excessive). So is this some kind of "controlled release" of nuclear fusion? If there is
going to be a reactor turned on that produces energy then Massachusetts is your best bet because they are installing a redox flow batter there this
I love it when a plan comes together!