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首页> 外文期刊>Plasma and Fusion Research >Ultraintense Lasers as a Promising Research Tool for Fusion Material Testing: Production of Ions, X-Rays and Neutrons
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Ultraintense Lasers as a Promising Research Tool for Fusion Material Testing: Production of Ions, X-Rays and Neutrons

机译：超高强度激光作为融合材料测试的有前途的研究工具：离子，X射线和中子的产生

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摘要

Laser fusion environments are characterized by prompt bursts of high energy neutrons, ions and X-rays which are absorbed by different components of the fusion reaction chamber. In particular, plasma facing components are subjected to extreme conditions and prior to their use in the reactors they must be validated under stringent irradiation tests. However, the particular characteristics of the fusion products, i.e. very short pulses, very high fluences and broad particle energy spectra are difficult to reproduce in test laboratories, making those validations hard to be carried out. In the present work, the ability of ultraintense lasers to create the appropriate characteristics of laser fusion bursts is addressed. A description of a possible experimental set-up to generate the appropriate ion pulses with lasers is presented. At the same time, the possibility of generating X-ray or neutron beams which reproduce those of laser fusion environments is also pointed out and assessed under current laser intensities. It is concluded that ultraintense lasers should play a relevant role in the validation of materials for laser fusion facilities and immediate action for this systematic study is called for.
机译：激光聚变环境的特征是高能中子，离子和X射线迅速爆炸，并被聚变反应室的不同组件吸收。特别地，面对等离子体的部件要经受极端条件，并且在将它们用于反应器之前，必须在严格的辐射测试下对其进行验证。然而，融合产物的特殊特性，即非常短的脉冲，非常高的注量和宽的粒子能谱在测试实验室中难以再现，使得这些验证难以进行。在当前的工作中，解决了超强激光产生合适的激光熔合脉冲特征的能力。介绍了用激光产生合适的离子脉冲的可能实验装置的描述。同时，还指出了在当前的激光强度下产生并重现X射线或中子束的可能性，该X射线或中子束可再现激光聚变环境。结论是，超强激光应在激光聚变设施材料的验证中发挥重要作用，需要对此系统研究立即采取行动。

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