Effect of Strongly Magnetized Electrons and Ions on Heat Flow and Symmetry of Inertial Fusion Implosions
| Autor: | A. Bose, J. Peebles, C. A. Walsh, J. A. Frenje, N. V. Kabadi, P. J. Adrian, G. D. Sutcliffe, M. Gatu Johnson, C. A. Frank, J. R. Davies, R. Betti, V. Yu. Glebov, F. J. Marshall, S. P. Regan, C. Stoeckl, E. M. Campbell, H. Sio, J. Moody, A. Crilly, B. D. Appelbe, J. P. Chittenden, S. Atzeni, F. Barbato, A. Forte, C. K. Li, F. H. Seguin, R. D. Petrasso |
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| Přispěvatelé: | AWE Plc |
| Rok vydání: | 2021 |
| Předmět: |
magnetized implosion
General Physics Plasma Physics Inertial confinement fusion shock-driven implosion magnetized implosion Science & Technology 02 Physical Sciences Plasma Physics Physics Physics Multidisciplinary General Physics and Astronomy Inertial confinement fusion shock-driven implosion 09 Engineering TARGETS Physical Sciences COMPRESSION 01 Mathematical Sciences GENERATION |
| Zdroj: | Physical review letters. 128(19) |
| ISSN: | 1079-7114 |
| Popis: | This Letter presents the first observation on how a strong, 500 kG, externally applied B field increases the mode-two asymmetry in shock-heated inertial fusion implosions. Using a direct-drive implosion with polar illumination and imposed field, we observed that magnetization produces a significant increase in the implosion oblateness (a 2.5 × larger P 2 amplitude in x-ray self-emission images) compared with reference experiments with identical drive but with no field applied. The implosions produce strongly magnetized electrons ( ω e τ e ≫ 1 ) and ions ( ω i τ i > 1 ) that, as shown using simulations, restrict the cross field heat flow necessary for lateral distribution of the laser and shock heating from the implosion pole to the waist, causing the enhanced mode-two shape. |
| Databáze: | OpenAIRE |
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