تقرير
Two-Plasmon-Decay Instability Stimulated by a Normal- and Large-Angle-Incidence Laser Pair
| العنوان: | Two-Plasmon-Decay Instability Stimulated by a Normal- and Large-Angle-Incidence Laser Pair |
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| المؤلفون: | Lian, C. -W., Ji, Y., Yan, R., Li, J., Cao, S. -H., Ren, C., Wang, L. -F., Ding, Y. -K., Zheng, J. |
| سنة النشر: | 2024 |
| المجموعة: | Physics (Other) |
| مصطلحات موضوعية: | Physics - Plasma Physics |
| الوصف: | The two-plasmon-decay instability (TPD) is a critical target preheating risk in direct-drive inertial confinement fusion. In this paper, TPD collectively driven by a normal-incidence laser beam (Beam-N) and a large-angle-incidence laser beam (Beam-L) is investigated via particle-in-cell simulations. Significant TPD growth is found able to develop in this regime at previously unexpected low laser intensities if the intensity of Beam-L exceeds the large-angle-incidence threshold. Both beams contribute to the growth of TPD in a "seed-amplification" manner where the absolute instability driven by Beam-L provides the seeds that get convectively amplified by Beam-N, making TPD energetically important and causing significant pump depletion and hot electron generation. Comment: 16 pages, 5 figures, submitted |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2405.07187 |
| رقم الأكسشن: | edsarx.2405.07187 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |