title: Ion-kinetic-energy measurements and energy balance in a Z-pinch plasma at stagnation.
abstract: The ion-kinetic energy throughout K emission in a stagnating plasma was determined from the Doppler contribution to the shapes of optically thin lines. X-ray spectroscopy with a remarkably high spectral resolution, together with simultaneous imaging along the pinch, was employed. Over the emission period, a drop of the ion-kinetic energy down to the electron thermal energy was seen. Axially resolved time-dependent electron-density measurements and absolute intensities of line and continuum allowed for investigating, for the first time, each segment of the pinch, the balance between the ion-kinetic energy at the stagnating plasma, and the total radiation emitted. Within the experimental uncertainties, the ion-kinetic energy is shown to account for the total radiation.
authors.affiliation: Weizmann Institute of Science, Rehovot 76100, Israel.
authors.forename: E
authors.initials: E
authors.lastname: Kroupp
authors.forename: D
authors.initials: D
authors.lastname: Osin
authors.forename: A
authors.initials: A
authors.lastname: Starobinets
authors.forename: V
authors.initials: V
authors.lastname: Fisher
authors.forename: V
authors.initials: V
authors.lastname: Bernshtam
authors.forename: Y
authors.initials: Y
authors.lastname: Maron
authors.forename: I
authors.initials: I
authors.lastname: Uschmann
authors.forename: E
authors.initials: E
authors.lastname: Förster
authors.forename: A
authors.initials: A
authors.lastname: Fisher
authors.forename: C
authors.initials: C
authors.lastname: Deeney