Number of the records: 1
Studies of laser-plasma interaction physics with low-density targets for direct-drive inertial confinement fusion on the Shenguang III prototype
- 1.0552092 - ÚFP 2022 RIV IN eng J - Journal Article
Tikhonchuk, V. - Gong, T. - Jourdain, N. - Renner, Oldřich - Condamine, F. P. - Pan, K. Q. - Nazarov, W. - Hudec, L. - Limpouch, J. - Liška, R. - Krůs, Miroslav - Wang, F. - Yang, D. - Li, S. W. - Li, Z. C. - Guan, Z. Y. - Liu, Y. G. - Xu, T. - Peng, X. S. - Liu, X. M. - Li, Y. L. - Li, J. - Song, T. M. - Yang, J. M. - Jiang, S. E. - Zhang, B. H. - Huo, W. Y. - Ren, G. - Chen, Y. H. - Zheng, W. - Ding, Y. K. - Lan, K. - Weber, S.
Studies of laser-plasma interaction physics with low-density targets for direct-drive inertial confinement fusion on the Shenguang III prototype.
Matter and Radiation at Extremes. Roč. 6, č. 2 (2021), č. článku 0023006. ISSN 2468-2047. E-ISSN 2468-080X
Institutional support: RVO:61389021
Keywords : laser-plasma interaction * Shenguang III * inertial fusion
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 6.089, year: 2021
Method of publishing: Open access
https://aip.scitation.org/doi/10.1063/5.0023006
The physics of laser-plasma interaction is studied on the Shenguang III prototype laser facility under conditions relevant to inertial confinement fusion designs. A sub-millimeter-size underdense hot plasma is created by ionization of a low-density plastic foam by four high-energy (3.2 kJ) laser beams. An interaction beam is fired with a delay permitting evaluation of the excitation of parametric instabilities at different stages of plasma evolution. Multiple diagnostics are used for plasma characterization, scattered radiation, and accelerated electrons. The experimental results are analyzed with radiation hydrodynamic simulations that take account of foam ionization and homogenization. The measured level of stimulated Raman scattering is almost one order of magnitude larger than that measured in experiments with gasbags and hohlraums on the same installation, possibly because of a greater plasma density. Notable amplification is achieved in high-intensity speckles, indicating the importance of implementing laser temporal smoothing techniques with a large bandwidth for controlling laser propagation and absorption.
Permanent Link: http://hdl.handle.net/11104/0327240
Number of the records: 1