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5 results on '"Aboushelbaya R"'

1. Measuring the principal Hugoniot of inertial-confinement-fusion-relevant TMPTA plastic foams

Author

Paddock, R. W., primary, von der Leyen, M. W., additional, Aboushelbaya, R., additional, Norreys, P. A., additional, Chapman, D. J., additional, Eakins, D. E., additional, Oliver, M., additional, Clarke, R. J., additional, Notley, M., additional, Baird, C. D., additional, Booth, N., additional, Spindloe, C., additional, Haddock, D., additional, Irving, S., additional, Scott, R. H. H., additional, Pasley, J., additional, Cipriani, M., additional, Consoli, F., additional, Albertazzi, B., additional, Koenig, M., additional, Martynenko, A. S., additional, Wegert, L., additional, Neumayer, P., additional, Tchórz, P., additional, Rączka, P., additional, Mabey, P., additional, Garbett, W., additional, Goshadze, R. M. N., additional, Karasiev, V. V., additional, and Hu, S. X., additional

Published
2023
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2. Ionization states for the multipetawatt laser-QED regime

Author

Ouatu, I., primary, Spiers, B. T., additional, Aboushelbaya, R., additional, Feng, Q., additional, von der Leyen, M. W., additional, Paddock, R. W., additional, Timmis, R., additional, Ticos, C., additional, Krushelnick, K. M., additional, and Norreys, P. A., additional

Published
2022
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3. Suprathermal electrons from the anti-Stokes Langmuir decay instability cascade

Author

Feng, Q. S., primary, Aboushelbaya, R., additional, von der Leyen, M. W., additional, Spiers, B. T., additional, Paddock, R. W., additional, Ouatu, I., additional, Timmis, R., additional, Wang, R. H. W., additional, Cao, L. H., additional, Liu, Z. J., additional, Zheng, C. Y., additional, He, X. T., additional, and Norreys, P. A., additional

Published
2022
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5. Kinetic simulations of fusion ignition with hot-spot ablator mix.

Author

Sadler JD, Lu Y, Spiers B, Mayr MW, Savin A, Wang RHW, Aboushelbaya R, Glize K, Bingham R, Li H, Flippo KA, and Norreys PA

Abstract

Inertial confinement fusion fuel suffers increased x-ray radiation losses when carbon from the capsule ablator mixes into the hot-spot. Here, we present one- and two-dimensional ion Vlasov-Fokker-Planck simulations that resolve hot-spot self-heating in the presence of a localized spike of carbon mix, totalling 1.9% of the hot-spot mass. The mix region cools and contracts over tens of picoseconds, increasing its α particle stopping power and radiative losses. This makes a localized mix region more severe than an equal amount of uniformly distributed mix. There is also a purely kinetic effect that reduces fusion reactivity by several percent, since faster ions in the tail of the distribution are absorbed by the mix region. Radiative cooling and contraction of the spike induces fluid motion, causing neutron spectrum broadening. This artificially increases the inferred experimental ion temperatures and gives line of sight variations.

Published
2019
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