section_path: Measurement/Units/Plasma physics
section_name: Plasma physics
paragraph_text: Plasma physics
  
  The field of plasma physics deals with phenomena of electromagnetic nature that involve very high temperatures. It is customary to express temperature as energy in a unit related to the electronvolt or kiloelectronvolt (eV/ k or keV/ k). The corresponding energy, which is dimensionally distinct from temperature, is then calculated as the product of the Boltzmann constant and temperature, E = k B T {\displaystyle E=k_{\text{B}}T}. Then, 1 eV/ k is 11 605 K. In the study of QCD matter one routinely encounters temperatures of the order of a few hundred MeV/ k, equivalent to about 10 K.