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Charged-Particle Probing of X-ray–Driven Inertial-Fusion Implosions

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Science  05 Mar 2010:
Vol. 327, Issue 5970, pp. 1231-1235
DOI: 10.1126/science.1185747

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Abstract

Measurements of x-ray–driven implosions with charged particles have resulted in the quantitative characterization of critical aspects of indirect-drive inertial fusion. Three types of spontaneous electric fields differing in strength by two orders of magnitude, the largest being nearly one-tenth of the Bohr field, were discovered with time-gated proton radiographic imaging and spectrally resolved proton self-emission. The views of the spatial structure and temporal evolution of both the laser drive in a hohlraum and implosion properties provide essential insight into, and modeling validation of, x-ray–driven implosions.

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