通过改良腔压加速型靶件热核氘-氘聚变产生质子束,作为质子-硼聚变驱动器的候选靶件

IF 2 3区 物理与天体物理 Q3 PHYSICS, FLUIDS & PLASMAS Physics of Plasmas Pub Date : 2024-08-27 DOI:10.1063/5.0207108
P. Tchórz, T. Chodukowski, M. Rosiński, S. Borodziuk, M. Szymański, R. Dudžák, S. Singh, M. Krupka, T. Burian, A. Marchenko, M. Kustosz, S. Agarwal
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引用次数: 0

摘要

在这封信中,我们报告了利用太瓦、亚纳秒级激光系统,通过辐照改良腔压加速型目标,产生高能质子束的可能性。在这种方法中,几百万电子伏特质子的主要来源是热核氘-氘反应;因此,被加速粒子的能谱及其数量与激光强度(尤其是激光脉冲能量和脉冲持续时间)的关系不像最常见的离子加速机制(即靶正态鞘加速)那样密切。所进行的蒙特卡洛模拟表明,当使用中低激光脉冲强度(⩽ 1016W/cm2)和小于 100 μm 的薄硼箔作为捕集器时,使用上述机制产生质子束可能是激光诱导质子-硼聚变的有益和有效的驱动力。
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Proton beams generated via thermonuclear deuterium–deuterium fusion by means of modified cavity pressure acceleration-type targets as a candidate for proton–boron fusion driver
In this Letter, we report the possibility of generating intense, highly energetic proton beams using terawatt, sub-nanosecond class laser system by irradiating modified cavity pressure acceleration-type targets. In this approach, the main source of few-mega electron volt protons is thermonuclear deuterium–deuterium reaction; therefore, the energy spectrum of accelerated particles and their number is not as strongly related to the laser intensity (laser pulse energy and pulse duration in particular) as in the case of the most common ion acceleration mechanism, namely, target normal sheath acceleration. Performed Monte Carlo simulations suggest that using mentioned mechanism to generate proton beam might be beneficial and efficient driver for laser induced proton–boron fusion when moderate-to-low laser pulse intensities ( ⩽ 1016W/cm2) and thin, lower than 100 μm boron foils are used as catchers.
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来源期刊
Physics of Plasmas
Physics of Plasmas 物理-物理:流体与等离子体
CiteScore
4.10
自引率
22.70%
发文量
653
审稿时长
2.5 months
期刊介绍: Physics of Plasmas (PoP), published by AIP Publishing in cooperation with the APS Division of Plasma Physics, is committed to the publication of original research in all areas of experimental and theoretical plasma physics. PoP publishes comprehensive and in-depth review manuscripts covering important areas of study and Special Topics highlighting new and cutting-edge developments in plasma physics. Every year a special issue publishes the invited and review papers from the most recent meeting of the APS Division of Plasma Physics. PoP covers a broad range of important research in this dynamic field, including: -Basic plasma phenomena, waves, instabilities -Nonlinear phenomena, turbulence, transport -Magnetically confined plasmas, heating, confinement -Inertially confined plasmas, high-energy density plasma science, warm dense matter -Ionospheric, solar-system, and astrophysical plasmas -Lasers, particle beams, accelerators, radiation generation -Radiation emission, absorption, and transport -Low-temperature plasmas, plasma applications, plasma sources, sheaths -Dusty plasmas
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