Thomas C E
Appl Opt. 1975 Jun 1;14(6):1267-73. doi: 10.1364/AO.14.001267.
Laser fusion experiments require the focusing of very intense pulsed laser beams onto very small fuel pellets. All reported experiments to date have used lenses to focus one or more laser beams onto the target. This paper describes a combined refractive/reflective illumination system that provides nearly uniform irradiance with nearly orthogonal incidence over the complete spherical target, with only two laser beams. This illumination system was used in the experiments that produced the first known symmetric target implosions. Furthermore, these experiments produced what we believe were the first thermonuclear neutrons generated by a laser-driven implosion.
激光聚变实验需要将非常强的脉冲激光束聚焦到非常小的燃料靶丸上。迄今为止，所有已报道的实验都使用透镜将一束或多束激光束聚焦到靶标上。本文描述了一种折射/反射组合照明系统，该系统仅用两束激光束就能在整个球形靶标上提供几乎均匀的辐照度，且入射角几乎正交。该照明系统用于产生首次已知的对称靶标内爆的实验中。此外，这些实验产生了我们认为是由激光驱动内爆产生的首批热核中子。
