Temperature dependence of parametric instabilities in the context of the shock-ignition approach to inertial confinement fusion

0455762 - FZÚ 2016 RIV GB eng J - Článek v odborném periodiku
Weber, Stefan A. - Riconda, C.
Temperature dependence of parametric instabilities in the context of the shock-ignition approach to inertial confinement fusion.
High Power Laser Science and Engineering. Roč. 3, Feb (2015), e6. ISSN 2095-4719. E-ISSN 2052-3289
Grant CEP: GA MŠMT ED1.1.00/02.0061; GA MŠMT EE2.3.20.0279
Grant ostatní: ELI Beamlines(XE) CZ.1.05/1.1.00/02.0061; LaserZdroj (OP VK 3)(XE) CZ.1.07/2.3.00/20.0279
Institucionální podpora: RVO:68378271
Klíčová slova: inertial confinement fusion * shock ignition * laser-plasma interaction * parametric instabilities
Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech

The role of the coronal electron plasma temperature for shock-ignition conditions is analysed with respect to the dominant parametric processes: stimulated Brillouin scattering, stimulated Raman scattering, two-plasmon decay (TPD), Langmuir decay instability (LDI) and cavitation. TPD instability and cavitation are sensitive to the electron temperature. At the same time the reflectivity and high-energy electron production are strongly affected. For low plasma temperatures the LDI plays a dominant role in the TPD saturation. An understanding of laser-plasma interaction in the context of shock ignition is an important issue due to the localization of energy deposition by collective effects and hot electron production.
Trvalý link: http://hdl.handle.net/11104/0256381