Observations of anomalous x-ray emission at early stages of hot-spot formation in deuterium-tritium cryogenic implosions.

Shah, R C; Hu, S X; Igumenshchev, I V; Baltazar, J; Cao, D; Forrest, C J; Goncharov, V N; Gopalaswamy, V et al. · Phys Rev E · 2021

basic_science · Level V

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Abstract

In deuterium-tritium cryogenic implosions, hot-spot x-ray self-emission is observed to begin at a larger shell radius than is predicted by a one-dimensional radiation-hydrodynamic implosion model. Laser-imprint is shown to explain the observation for a low-adiabat implosion. For more-stable implosions the data are not described by the imprint model and suggest there are additional sources of decompression of the dense fuel.