SILEX-I装置上激光-团簇聚变实验中子产额测量
Diagnosing neutron yield for interaction of laser-cluster in SILEX-I
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摘要: 超短超强脉冲激光与CD4团簇相互作用可以产生高能量的氘离子，从而产生DD聚变中子，这种团簇聚变中子源有着非常广阔的应用前景。在SILEX-I 100 TW飞秒激光装置上，超短超强脉冲激光与CD4团簇相互作用实现了DD核聚变。团簇聚变的中子产额是实验中最为重要的物理量，在实验中采用高灵敏的中子探测器对团簇聚变产生的中子进行了测量，在现有实验条件下测得中子产额为103。Abstract: High-energy deuterons can be produced by ultraintense and ultrashort laser pulse interacting with CD4 cluster, and induce deuterium-deuterium (DD) fusion. This cluster fusion neutron source has extensive application. DD nuclear fusion has been performed on SILEX-I Ti:Sapphire laser system using 200 TW/30 fs laser pulses focused on CD4 cluster with f/2.7 optics. Neutron yield of DD fusion is measured by high sensitivity neutron detector. With this experimental condition, only 103 neutrons are observed．
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Key words:
- dd nuclear fusion /
- ultrashort pulse laser /
- cluster /
- neutron
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