X-ray spectral diagnostics of neon photoionization experiments on the Z-machine

Details X-ray spectral diagnostics of neon photoionization experiments on the Z-machine X-ray spectral diagnostics of neon photoionization experiments on the Z-machine

Mar 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003rsci...74.1962c&link_type=abstract

Review of Scientific Instruments, Volume 74, Issue 3, pp. 1962-1965 (2003).

Physics

Atomic Physics

6

X-Ray And Gamma-Ray Measurements, Plasma Simulation

Scientific paper

We report on an initial spectroscopic study of low-density, x-ray photoionized neon with x-ray spectroscopy. These experiments, carried out on the Z-machine at Sandia, are optimized to produce a gradient-free, collisionless plasma, and to explore issues related to the rapid x-ray photoionization of relatively cold, low-density plasmas. The initial experiments used time-integrated absorption spectroscopy, backlit by the pinch radiation, to determine the ionization balance in the gas cell. Future experiments will use time-resolved spectroscopy in both absorption and emission. The emission spectra are expected to be similar to those seen from photoionized astrophysical sources, such as x-ray binaries. Indeed, in addition to addressing basic plasma and atomic physics issues, these experiments are designed to help the astrophysical community better understand the new, high-resolution spectra being produced by the Chandra and XMM-Newton telescopes, and to benchmark spectral synthesis codes.

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