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Phys Rev Lett. 2019 Mar 8;122(9):095001. doi: 10.1103/PhysRevLett.122.095001.

Determination of the Ion Temperature in a High-Energy-Density Plasma Using the Stark Effect.

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Faculty of Physics, Weizmann Institute of Science, Rehovot 7610001, Israel.
Institut für Optik und Quantenelektronik, Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, D-07743 Jena, Germany.


We present the experimental determination of the ion temperature in a neon-puff Z pinch. The diagnostic method is based on the effect of ion coupling on the Stark line shapes. It was found, in a profoundly explicit way, that at stagnation the ion thermal energy is small compared to the imploding-plasma kinetic energy, where most of the latter is converted to hydromotion. The method here described can be applied to other highly nonuniform and transient high-energy-density plasmas.

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