Range shortening, radiation transport, and Rayleigh-Taylor instability phenomena in ion-beam-driven inertial-fusion-reactor-size targets: Implosion, ignition, and burn phases.
Range shortening, radiation transport, and Rayleigh-Taylor instability phenomena in ion-beam-driven inertial-fusion-reactor-size targets: Implosion, ignition, and burn phases.
复制标题
离子束驱动的惯性聚变反应堆大小目标中的射程缩短、辐射传输和瑞利-泰勒不稳定现象：内爆、点火和燃烧阶段。
DOI：
10.1103/physreva.35.2631
复制
发表时间：
1987
期刊：
影响因子：
--
通讯作者：
Tahir
中科院分区：
文献类型：
--
作者：
Long;Tahir
本文分析了离子在冷材料和热的稠密等离子体中的能量沉积理论，并对离子束聚变中的重离子和轻离子进行了数值计算。我们使用了Long、Moritz和Tahir的g-smcapso-smcapsr-smcapsg-smcapso-smcapsn-smcaps计算机程序(它是最初由Nardi、Peleg和Zinamon为质子编写的代码的扩展)来执行这些计算。以这种方式计算的能量沉积数据已被用于设计适用于反应堆的重离子束驱动聚变靶，它被包括在由Tahir和Long扩展的Christian、Ashby和Roberts的m-smcapse-smcapsd-smcapsu-smcapss-smcapsa-smcaps代码中。本代码中还进行了许多其他改进，并对这些改进进行了讨论。讨论了这类目标的理论分析的各个方面，包括水动力稳定性、水动力效率和增益的计算。已经使用了各种不同的目标设计，其中一些是新的。一般来说，这些靶是由能量为8-12GeV、输入能量为4-6.5mJ、输出能量范围为600-900mJ、增益范围为120-180的Bi/Sup+/离子驱动的。峰值功率在500-750TW范围内更高。我们给出了烧蚀、压缩、点火和燃烧阶段的详细计算。通过应用一种新的包括烧蚀和密度梯度效应的稳定性分析，我们表明这些靶似乎以稳定的方式内爆。因此，所设计的靶子提供了适用于未来惯性约束聚变反应堆的工作实例。《更少》
In this paper we present an analysis of the theory of the energy deposition of ions in cold materials and hot dense plasmas together with numerical calculations for heavy and light ions of interest to ion-beam fusion. We have used the g-smcapso-smcapsr-smcapsg-smcapso-smcapsn-smcaps computer code of Long, Moritz, and Tahir (which is an extension of the code originally written for protons by Nardi, Peleg, and Zinamon) to carry out these calculations. The energy-deposition data calculated in this manner has been used in the design of heavy-ion-beam-driven fusion targets suitable for a reactor, by its inclusion in the m-smcapse-smcapsd-smcapsu-smcapss-smcapsa-smcaps code of Christiansen, Ashby, and Roberts as extended by Tahir and Long. A number of other improvements have been made in this code and these are also discussed. Various aspects of the theoretical analysis of such targets are discussed including the calculation of the hydrodynamic stability, the hydrodynamic efficiency, and the gain. Various different target designs have been used, some of them new. In general these targets are driven by Bi/sup +/ ions of energy 8--12 GeV, with an input energy of 4--6.5 MJ, with output energies in the range 600--900 MJ, and with gains in the range 120--180. The peak powers are more » in the range of 500--750 TW. We present detailed calculations of the ablation, compression, ignition, and burn phases. By the application of a new stability analysis which includes ablation and density-gradient effects we show that these targets appear to implode in a stable manner. Thus the targets designed offer working examples suited for use in a future inertial-confinement fusion reactor. « less