Directed pulsed neutron source generation from inverse kinematic reactions driven by intense lasers

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外文摘要：Neutron production driven by intense lasers utilizing inverse kinematic reactions is explored self-consistently by a combination of particle-in-cell simulations for laser-driven ion acceleration and Monte Carlo nuclear reaction simulations for neutron production.It is proposed that laser-driven light-sail acceleration from ultrathin lithium foils can provide an energetic lithium-ion beam as the projectile bombarding a light hydrocarbon target with sufficiently high flux for the inverse p(7Li,n)reaction to be efficiently achieved.Three-dimensional self-consistent simulations show that a forward-directed pulsed neutron source with ultrashort pulse duration 3 ns,small divergence angle 26°,and extremely high peak flux 3 × 1014n/(cm2·s)can be produced by petawatt lasers at intensities of 1021 W/cm2.These results indicate that a laser-driven neutron source based on inverse kinematics has promise as a novel compact pulsed neutron generator for practical applications,since the it can operate in a safe and repetitive way with almost no undesirable radiation.

作者：

Yilin Yao、Zhenbo Wu、Tao Ye、Shaoping Zhu、Xiantu He、Bin Qiao

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作者单位：

Center for Applied Physics and Technology,HEDPS and State Key Laboratory of Nuclear Physics and Technology,School of Physics,Peking University,Beijing 100871,China

Institute of Applied Physics and Computational Mathematics,Beijing 100094,China

Frontiers Science Center for Nano-Optoelectronics,Peking University,Beijing 100094,China

出版年：

2024

DOI：

10.1063/5.0207839

极端条件下的物质与辐射(英文)

中国工程物理研究院科技信息中心

极端条件下的物质与辐射(英文)

ISSN：2468-2047

年,卷(期)：2024.9(6)