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208 / 2023-04-15 20:32:27
Optimize laser configuration mitigating CBET in a direct-drive ICF regime using a ray-based code PHANTAM
inertial confinement fusion,direct-drive,Cross-Beam Energy Transfer,ray-based
惯性约束聚变物理学
摘要录用
Chang-Wang Lian / University of Science and Technology of China
Rui Yan / University of Science and Technology of China
We have developed a new code PHAMTAM based on the geometric optical approximation and convective amplification model to study Cross-Beam Energy Transfer (CBET) under a series of parameters relevant to the direct-drive inertial confinement fusion (ICF). It is found that tuning the counter-propagating laser polarization to orthogonal can effectively suppress CBET. Additionally, in our particular laser configuration, it is shown that CBET is the weakest without any wavelength separation within the range of achievable wavelength separation in engineering. The laser system configuration is optimized to suppress CBET with PHAMTAM simulations. Further development of PHAMTAM including pump depletion and more accurate modeling of the laser fields near the reflection region are planned.

We have developed a new code PHAMTAM based on the geometric optical approximation and convective amplification model to study Cross-Beam Energy Transfer (CBET) under a series of parameters relevant to the direct-drive inertial confinement fusion (ICF). It is found that tuning the counter-propagating laser polarization to orthogonal can effectively suppress CBET. Additionally, in our particular laser configuration, it is shown that CBET is the weakest without any wavelength separation within the range of achievable wavelength separation in engineering. The laser system configuration is optimized to suppress CBET with PHAMTAM simulations. Further development of PHAMTAM including pump depletion and more accurate modeling of the laser fields near the reflection region are planned.
重要日期

  • 会议日期

    06月05日

    2023

    至

    06月09日

    2023

  • 04月30日 2023

    提前注册日期

  • 05月01日 2023

    摘要截稿日期

  • 05月01日 2023

    摘要录用通知日期

  • 05月01日 2023

    初稿截稿日期

  • 05月31日 2023

    注册截止日期

主办单位
等离子体物理重点实验室
北京师范大学天文系
承办单位
Matter and Radiation at Extremes期刊
中国工程物理研究院流体物理研究所
北京应用物理与计算数学研究所
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