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在用万兆瓦量级钕玻璃激光器轰击固体氘冰和氘化锂的实验中,BF_3中子探测器首次成功地拍摄到我国激光核聚变装置上发射的中子讯号照片。产额为10~3/束。在功率为10~(11)MW大型单路激光核聚变装置上,又记录到中子产额在2×10~4/束以上。以后在六束毫微秒和亚毫微秒激光脉冲对称打靶中,均记录到中子讯号波形。BF_3中子探测器性能稳定可靠。在一次打靶实验中,激光等离子体在毫微秒时间内发射的脉冲中子束虽然几乎“同时”到达探头,但快中子经过探头石腊时,被慢化成随时间变化按一定几率分布的热中子,可用
In the experiments of deuterium ice and deuterium deuteride bombardment of solid deuterium ice and lithium deuteride with a megawatt-watt neodymium glass laser, the BF 3 neutron detector shot the neutron signal photo shot by our country’s laser fusion device for the first time successfully. The yield is 10 ~ 3 / bundle. At the power of 10 ~ (11) MW large single laser fusion device, and recorded neutron yield of 2 × 10 ~ 4 / beam or more. Later in the six-beam sub-nanosecond and sub-nanosecond laser pulse symmetrical target, both recorded neutron signal waveforms. BF_3 neutron detector performance is stable and reliable. In one shooting experiment, the pulsed neutron beam emitted by the laser plasma in nanoseconds time reaches the probe almost simultaneously, but the fast neutron is moderated as a probability distribution over time when passing through the probe paraffin Thermal neutrons, available