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中国“人造太阳”革命性突破!稳定运行101.2秒

2017-07-05 07:31:38   未来网

原标题:中国“人造太阳”革命性突破!稳定运行101.2秒

中国科学院等离子体物理研究所今天宣布,国家大科学装置——世界上第一个全超导托卡马克(EAST)东方超环再传捷报,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。

这标志着,EAST成为世界上第一个实现稳态高约束模式运行持续时间达到百秒量级的托卡马克核聚变实验装置。

人造太阳

这一里程碑性的重要突破,表明我国磁约束聚变研究在稳态运行的物理和工程方面,将继续引领国际前沿,对国际热核聚变实验堆(ITER)和未来中国聚变工程实验堆(CFETR)建设和运行具有重大的科学意义,同时为人类开发利用核聚变清洁能源奠定了重要的技术基础。

EAST高11米、直径8米、重达400吨,是我国第四代核聚变实验装置,其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,所以也被称为“人造太阳”。

经过多年研究,中国科研团队成功攻克了一批国际共性难题,在世界上首次实现了5000万度等离子体持续放电101.2秒的高约束运行,实现了从60秒到百秒量级的跨越。

人造太阳

ITER计划则是当前世界上规模最大的国际科技合作项目,是人类探寻未来高效清洁能源的重要途径。实现稳态长脉冲高约束等离子体运行是未来聚变堆亟待解决的关键科学问题。

EAST具有ITER类似的先进技术,未来五年内将是国际上唯一有能力开展超过百秒时间尺度的长脉冲高约束聚变等离子体物理和工程技术研究的实验平台,为ITER预演稳态运行是EAST的重要使命。

这次实验的突破进一步提升了EAST在国际磁约束聚变实验研究中的重要地位,其科学研究成果将为未来ITER长脉冲高约束运行提供重要的科学和实验支持,更为我国下一代聚变装置——中国聚变工程实验堆(CFETR)的预研、建设、运行和人才培养奠定了基础。

人造太阳

东方超环实现的世界最长101.2秒高约束放电等离子体的基本参数(Ip=0.4MA,Bt=2.5T,PRF=3.0MW,ne=3.0x1019/m3,Te=4.0KeV,H98y2=1.1,USN)

责任编辑:穆启春 CN063
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