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利用掺杂层研究磁化靶中的能斯特效应

陈诗佳 张华 周沧涛 卓红斌 吴福源 RafaelRamis

陈诗佳, 张华, 周沧涛, 等. 利用掺杂层研究磁化靶中的能斯特效应[J]. 强激光与粒子束. doi: 10.11884/HPLPB202436.240106
引用本文: 陈诗佳, 张华, 周沧涛, 等. 利用掺杂层研究磁化靶中的能斯特效应[J]. 强激光与粒子束. doi: 10.11884/HPLPB202436.240106
Chen Shijia, Zhang Hua, Zhou Cangtao, et al. Nernst effects study using dopant layer on magnetized target[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202436.240106
Citation: Chen Shijia, Zhang Hua, Zhou Cangtao, et al. Nernst effects study using dopant layer on magnetized target[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202436.240106

利用掺杂层研究磁化靶中的能斯特效应

doi: 10.11884/HPLPB202436.240106
基金项目: 国家重点研发项目(2023YFA1608403,2022YFA1603300);国家自然科学基金项目(12205200,12205185,12375237); 中国博士后科学基金(2023M742402);深圳市科技计划资助(RCBS20221008093131086,ZDSYS20200811143600001)
详细信息
    作者简介:

    陈诗佳,chenshijia@sztu.edu.cn

    通讯作者:

    张 华,zhanghua@sztu.edu.cn

    周沧涛,zhoucangtao@sztu.edu.cn

  • 中图分类号: O532

Nernst effects study using dopant layer on magnetized target

  • 摘要: 双层磁化套筒靶在内层采用高原子序数(Z)材料,减少了因能斯特效应导致的磁通损失并降低点火要求,为磁化靶聚变提供了一种备选方案。然而,添加高Z材料也可能增加由于物质混合而产生的辐射损失。通过在金属套筒中使用带有塑料掺杂的锗作为高Z替代物,初步分析了磁场能斯特输运和物质混合对磁化套筒惯性聚变的影响。与单层套筒相比,双层套筒靶展示出温度和磁通的显著增加,从而使聚变产额提高了154%。将碳氢掺杂剂添加到最内层的锗中,模拟了物质混合对聚变产额的影响。研究结果表明,即使锗与其他物质混合,只要保持较低的混合比例,也能显著提高聚变产额。
  • 图  1  内爆磁化双层套筒靶示意图

    Figure  1.  Implosion magnetized two-layer liner target design

    图  2  双层磁化掺杂锗(5% CH)套筒靶中归一化的燃料离子温度(红色)、磁场(绿色)以及密度(蓝色)沿半径的分布。实线考虑了能斯特对流,虚线未考虑

    Figure  2.  Normalized ion temperature (red), magnetic field (green) and fuel density (blue) in the fuel of the two-layer magnetized Ge dopant (5% CH) liner target are plotted as a function of radius. The solid lines are with the Nernst term included, the dashed lines are without

    图  3  内层中含有和不含95% Ge 掺杂层的内爆轨迹和驱动电流

    Figure  3.  Implosion diagram and driven current with and without the 95% Ge dopant in the inner layer

    图  4  不同浓度CH掺杂的聚变产额

    Figure  4.  Fusion yield for various CH dopant concentrations

    图  5  内层中含有和不含95% Ge掺杂层的磁通量

    Figure  5.  Magnetic flux with and without the 95% Ge dopant in the inner layer

    图  6  不同内层物质的峰值压缩温度

    Figure  6.  Temperature at peak compression with various inner layer

    表  1  磁化双层套筒靶初始参数

    Table  1.   The initial parameters of magnetized two-layer liner target

    fuel
    radius/mm
    germanium
    thickness/mm
    beryllium
    thickness/mm
    liner
    length/mm
    peak current
    drive/MA
    axial magnetic
    field/T
    preheated
    temperature/eV
    initial preheat
    time/ns
    2.7 0.002 0.538 10 30 15 250 75
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出版历程
  • 收稿日期:  2024-03-26
  • 修回日期:  2024-06-27
  • 录用日期:  2024-06-23
  • 网络出版日期:  2024-07-08

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