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厉害了!中国“人造太阳”再创世界纪录

2017-07-06 12:41:57   光明网

最新消息显示,被称作中国“人造太阳”的国家大科学装置——全超导托卡马克(EAST)东方超环再传捷报:7月3日晚,该装置实现了稳定的101.2秒稳态长脉冲高约束等离子体运行,创造了新的世界纪录。

之所以被称为“人造太阳”,是因为它和太阳放光发热一样,都是靠核聚变反应。

东方超环高11米、直径8米、重达400吨,是我国第四代核聚变实验装置。它的科学目标是让海水中大量存在的氘和氚在高温条件下,像太阳一样发生核聚变,为人类提供源源不断的清洁能源。

氢弹是人类最早制造的人造太阳,但聚变过程不可控,它瞬间释放出的巨大能量足以毁灭一切。而东方超环却能控制这一过程。

东方超环实验先后创下多项托卡马克运行的世界纪录:2012年实现30秒高约束等离子体放电;2016年获得60秒的完全非感应电流驱动(稳态)高约束模等离子体。

东方超环的成功建设和运行获得国内外专家的高度赞誉,《自然》和《科学》分别评价:“中国创造了聚变历史”“在这里科学价值得到极大体现”。

责任编辑:丁勇 CN007
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