Dynamics of implosion, bounce, and re-implosion of a shell directly driven by a time-shaped laser pulse

Barbato, F.; Savino, Lorenzo; Schiavi, A.; Bishel, D. T.; Goncharov, V. N.; Igumenshchev, I. V.; Shah, R. C.; Smith, E. A.; Theobald, W.; Chin, D. A.; Atzeni, S.

doi:10.1063/5.0241340

Title: Dynamics of implosion, bounce, and re-implosion of a shell directly driven by a time-shaped laser pulse

Journal Article · 16 January 2025 · Physics of Plasmas

DOI: https://doi.org/10.1063/5.0241340 · OSTI ID:2500922

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Università degli Studi di Roma “La Sapienza" (Italy)
University of Rochester, NY (United States)
University of Rochester, NY (United States); Focused Energy GmbH, Darmstadt (Germany)

Gas-filled plastic spherical shells have been imploded using the 60-beam OMEGA laser. The same laser pulse was used as in a previous experiment, which demonstrated the dynamic formation of a shell by irradiating a homogeneous plastic foam sphere. In the present experiment, the shell initially implodes, bounces, and expands; a new shell then forms and undergoes a second implosion. Analysis of x-ray self-emission-streaked images and sequences of 2D x-ray self-emission framing camera images show shell evolution that is in reasonable agreement with 1D simulations. Shell integrity and symmetry are well maintained until the formation of the new shell. The final implosion, instead, is affected by substantial asymmetries.

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Research Organization:: University of Rochester, NY (United States)

Sponsoring Organization:: USDOE; USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: NA0004144

OSTI ID:: 2500922

Journal Information:: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 1 Vol. 32; ISSN 1070-664X

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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