单能中子 meaning in English
monoenergetic neutrons
monoergic neutron
single-end neutron
Examples
- The relative biological effectiveness of 0 . 5 mev neutrons to induce micronuclei in the root - tip cells of onion seedlings after irradiation as dry dormant seeds
单能中子照射洋葱干种子后在根尖细胞内诱发微核的相对生物效应 - Moreover , precise experimental data are the base of theoretical models and calculations . up to now , at about 14 mev , there are some ddx measurement data because the t ( d , n ) 4he reaction is a good mono - energetic neutron source . below 8 mev , there are also some measurements because mono - energetic neutron source is available in this region
到目前为止，在14mev附近，由于有很好的t ( d , n ) ~ 4he单能中子源，所以次级中子双微分截面的测量数据较多，在8mev以下，也可以得到很好的单能中子源，所以也有一些测量数据。 - The measurement data is scarce in 8 - 13 mev region due to the lack of mono - energetic neutron sources ( in this region , there are breakup neutrons besides the mono - energetic neutrons in the often used neutron sources such as t ( p , n ) 3 he and d ( d , n ) 3he sources . the secondary neutrons induced by breakup source neutrons will seriously contaminate the secondary neutron spectra induced by mono - energetic source neutrons ) . therefore , precise measurement for some key nuclides is necessary to check the evaluations in this region
但在8 ? 13mev这一能区，由于没有合适的单能中子源(因为在这一能区，对于常规中子源如t ( p , n ) ~ 3he和d ( d , n ) ~ 3he中子源，除了单能中子以外，还有破裂中子成份，这部分源破裂中子在样品上引起的次级中子，将严重影响测量结果) ，所以至今在8 ? 13mev能区这方面的测量数据极少。