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点燃燃料腔室中的氢原子转化为氦,从而生成一颗物理学家比拟中的微型恒星。面对人们质疑“国家点火装置”至今未果的现状,劳伦斯利弗莫尔国家实验室主任彭罗斯·奥尔布赖特强调:人们应该相信我们最终能达到目标,关键是何时实现的问题。而我们探索的物理世界这一部分过去从没有人做过。50多年来,物理学家们一直渴望实现可控聚变,因为这一难以实现的目标可为我们提供无限和廉价的能源。为了实现这一目标,美国科学家建造了一台巨型激光器——国家点火装置(NIF)——其设备规模堪比足球场大小,而激光所要轰击的靶标却是一个比胡椒子还小的燃料腔室。
Ignites the hydrogen atoms in the fuel cell to convert it into helium, creating a miniature star that physicists compare. Faced with questions about the status quo of “national ignition devices” to date, Penrose Albright, director of Lawrence Livermore National Laboratory, stressed: People should believe that the key to our end goal is when problem. And no part of the physical world we explored in the past has ever been done before. For more than 50 years, physicists have been longing for controlled fusion because this unattainable goal provides us with unlimited and cheap energy. In order to achieve this goal, scientists in the United States built a giant laser, the National Ignition Facility (NIF), which is comparable in size to a soccer field and targets the laser to bombard a fuel chamber smaller than pepper room.