English

Magnetothermodynamics: Measuring equations of state in a relaxed magnetohydrodynamic plasma

Plasma Physics 2018-01-17 v2

Abstract

We report the first measurements of equations of state of a fully relaxed magnetohydrodynamic (MHD) laboratory plasma. Parcels of magnetized plasma, called Taylor states, are formed in a coaxial magnetized plasma gun, and are allowed to relax and drift into a closed flux conserving volume. Density, ion temperature, and magnetic field are measured as a function of time as the Taylor states compress and heat. The theoretically predicted MHD and double adiabatic equations of state are compared to experimental measurements. We find that the MHD equation of state is inconsistent with our data.

Keywords

Cite

@article{arxiv.1708.05745,
  title  = {Magnetothermodynamics: Measuring equations of state in a relaxed magnetohydrodynamic plasma},
  author = {M. Kaur and L. J. Barbano and E. M. Suen-Lewis and J. E. Shrock and A. D. Light and D. A. Schaffner and M. R. Brown},
  journal= {arXiv preprint arXiv:1708.05745},
  year   = {2018}
}

Comments

4 pages, 4 figures