An Interesting Equation of State for Fusion Reactors.
It's not clear to me that nuclear fusion will ever be here as a viable commercial energy source, and if it is, it will be too late, since it was "too late" 20 years ago. Nevertheless the spinoff from plasma physics has many applications beyond possible future power plants.
During our weekly call, I was discussing interstitial gases in solids with my son, since xenon and krypton are fission products, and helium is generated (generally via alpha decay) in solid nuclear fuels - one of the reasons I favor fluid fuels - and he told me he's working with an equation of state for helium in metals of which I'd never heard, the "Setywan Equation of State."
(Helium can also be generated by neutrons in collision with some isotopes of nickel.)
It's described here:
Setyawan, W., Dasgupta, D., Blondel, S. et al. Equation of state for He bubbles in W and model of He bubble growth and bursting near W{100} surfaces derived from molecular dynamics simulations. Sci Rep 13, 9601 (2023).
The full paper is open sourced, but an excerpt is in order, here given as a graphics object to preserve the notation:
I collect Equation of State papers, so I filed it in the EOS file in my computer and to return the favor, sent him papers on the Spann-Wagner EOS for CO2.
Life is beautiful and then you die.