发表机构
State Key Laboratory of Ultra-intense laser Science and Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences; University of Chinese Academy of Sciences; School of Physics, East China Normal University; School of Physical Science and Technology, ShanghaiTech University（中国科学院上海光学精密机械研究所; 中国科学院大学; 华东师范大学物理系; 上海科技大学物理科学与技术学院）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
该研究分析了超强激光驱动的“投手-捕手”方案中离子束阻止本领对质子-硼聚变的影响，通过耦合现象与聚变过程、改变相关参数，发现最佳中心能量偏移，经粒子-in-cell模拟验证，为氢-硼聚变提供参考。
AI 中文摘要
研究了质子束在硼等离子体中传播时，阻止本领对质子-硼聚变的影响。由于阻止本领，质子束沉积能量会使硼靶的电子温度升高，当束流的尾部进入预热等离子体时，反馈机制变得显著。将该现象与质子-硼聚变过程耦合，通过改变质子束的中心能量、硼靶的厚度和密度，系统研究了聚变产额。结果发现，在阻止本领的影响下，聚变的最佳中心能量偏离本征的672 keV共振，移至约900 keV。此外，粒子-in-cell模拟证实了上述结果，为后续高产额氢-硼聚变提供了重要参考。
英文摘要
The effect of stopping power on proton-boron fusion is investigated for a proton beam propagating through boron plasma. Due to the stopping power, the electron temperature of the boron target rises as the proton beam deposits energy. Consequently, a feedback mechanism becomes significant when the trailing part of the beam propagates into the preheated plasma. By coupling this phenomenon with the proton-boron fusion process, fusion yields are systematically investigated by varying the central energy of the proton beam, as well as the thickness and density of the boron target. It is found that, under the influence of stopping power, the optimal central energy for fusion deviates from the intrinsic 672 keV resonance and shifts to approximately 900 keV. Moreover, the present results are substantiated by particle-in-cell simulations, which provides a valuable reference for subsequent high-yield hydrogen-boron fusion.
