Structured fusion target designs
Structured fusion target designs
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DOI：
10.1088/0029-5515/15/2/019
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发表时间：
1975-04
期刊：
影响因子：
3.3
通讯作者：
R. Kirkpatrick;C. Cremer;L.C. Madsen;H. H. Rogers-H.;R. Cooper
中科院分区：
文献类型：
--
作者：
R. Kirkpatrick;C. Cremer;L.C. Madsen;H. H. Rogers-H.;R. Cooper
最近在公开文献[1，2]中提出了用于激光和电子束聚变的结构化靶标，但这种靶标设计的优点已经在洛斯阿拉莫斯科学实验室和劳伦斯利弗莫尔实验室研究了几年，最近在桑迪亚实验室[3]。这里介绍的工作是LASL在过去几个月的结构化聚变目标设计中所做的比较研究，特别强调从电子束机器输入的能量。然而，结果并不局限于电子束目标。目前通过直接电或激光能量沉积来点燃DT质量的努力受到可用能量的限制。因此，研究必须集中在包含非常小的DT质量的系统上，以便可用的输入能量足以引发热核燃烧。这种“小型化”的过程导致了一个额外的问题--接受时间，即目标可以接受能量并有效地使用它来驱动DT质量点火的时间间隔。因此，能源供应问题因电力限制而变得更加复杂。目前可用的可控输入能量源不能在目标的接受时间内提供必要的能量。
Structured targets for laser and electron beam fusion have recently been suggested in the open literature [1, 2], but the merits of such target designs have been studied for several years at Los Alamos Scientific Laboratory and Lawrence Livermore Laboratory and more recently at Sandia Laboratories [3]. The work presented here is a comparative study made at LASL during the past few months of structured fusion target designs, with specific emphasis on energy input from an electron beam machine. However, the results are not limited to e-beam targets. Present efforts to ignite a DT mass by direct electrical or laser energy deposition are limited by the energy available. Consequently, research has necessarily focused on systems containing very small DT masses, so that the input energy available will suffice to initiate thermonuclear burn. This process of 'miniaturization' leads to an additional problem — that of acceptance time, the time interval over which the target can accept energy and use it efficiently to drive the DT mass to ignition. Thus the problem of energy availability is compounded by power limitations. Presently available controllable sources of input energy are not capable of delivering the necessary energy in the acceptance time of the target.