| Autor: |
V. Yu. Glebov, J. Trela, Xavier Ribeyre, J. A. Delettrez, Karen S. Anderson, Christian Stoeckl, Johan Frenje, Dimitri Batani, W. Theobald, Riccardo Betti, M. Stoeckl, A. A. Solodov, Alexis Casner |
| Rok vydání: |
2018 |
| Předmět: |
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| Zdroj: |
Physics of Plasmas |
| ISSN: |
1070-664X |
| DOI: |
10.1063/1.5020981 |
| Popis: |
In the shock-ignition scheme for inertial confinement fusion, hot electrons resulting from laser–plasma instabilities can play a major role during the late stage of the implosion. This article presents the results of an experiment performed on OMEGA in the so-called “40 + 20 configuration.” Using a recent calibration of the time-resolved hard x-ray diagnostic, the hot electrons' temperature and total energy were measured. One-dimensional radiation–hydrodynamic simulations have been performed that include hot electrons and are in agreement with the measured neutron-rate–averaged areal density. For an early spike launch, both experiment and simulations show the detrimental effect of hot electrons on areal density and neutron yield. For a later spike launch, this effect is minimized because of a higher compression of the target. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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