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径迹密度
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  “径迹密度”译为未确定词的双语例句
    The theoretical calculations and Monte-Carlo Simulatiuons of the relationshipbetween the measured distributions of fission track length and the parameters ofheavy ion tracks have been carried out.
    为了得到真实的裂变径迹封闭长度分布,需要对重离子径迹密度、孔径及裂变径迹长度进行几率归一修正。
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  track density
Impact experiments were conducted under pressures of 12.4, 28.9, 37.8, 51.8, 64.6 and 77.6 GPa, respectively, and fission track density and fission track length before and after the impact were measured.
      
Results demonstrate that the fission track density is decreased and the fission track length is shortened as the impact pressure is increased.
      
The energies of the cascades were estimated from their electron track density.
      
Note on the track density of minimum-ionizing particles in large emulsion stacks
      
Velocity dependence of track density in propane and hydrogen bubble chambers
      
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  track density
Impact experiments were conducted under pressures of 12.4, 28.9, 37.8, 51.8, 64.6 and 77.6 GPa, respectively, and fission track density and fission track length before and after the impact were measured.
      
Results demonstrate that the fission track density is decreased and the fission track length is shortened as the impact pressure is increased.
      
The energies of the cascades were estimated from their electron track density.
      
Note on the track density of minimum-ionizing particles in large emulsion stacks
      
Velocity dependence of track density in propane and hydrogen bubble chambers
      
更多          


A CR-39 track detector was used both as a target and a detector to study the interaction of 960 A Mev ~(238)U ions with light nuclei (~1H, ~(12)C, ~(16)O). The range mean free path and cross section of 960 A MeV ~(233)U ions in CR-39 have been found to be 6.8 cm, 4.33 cm and 2160 mb respectively. The average multiplicity due to fragmentation of ~(236)U projectiles with light nuclei has been found to be 2.03. It is shown that the most common mode of interaction is binary fission. The reaction products consist...

A CR-39 track detector was used both as a target and a detector to study the interaction of 960 A Mev ~(238)U ions with light nuclei (~1H, ~(12)C, ~(16)O). The range mean free path and cross section of 960 A MeV ~(233)U ions in CR-39 have been found to be 6.8 cm, 4.33 cm and 2160 mb respectively. The average multiplicity due to fragmentation of ~(236)U projectiles with light nuclei has been found to be 2.03. It is shown that the most common mode of interaction is binary fission. The reaction products consist of two track peaks according to track diameter distribution. The ratio of track density of each peak to track density of reaction products comes out to be 20% and 80% respectively.

用CR-39作为探测器和靶,研究了960AMeV~(238)U离子和轻核(~1H、~(120C、~(16)O)的相互作用.测定了~(238)U离子在CR-39中的射程;~(238)U与轻核相互作用的电荷变化平均自由程(mfp)和截面,并与理论计算值进行了比较;~(238)U和轻核相互作用的平均多重数v=2.03,证明相互作用的主要形式是二裂变;反应产物的径迹按直径分布形成两个峰,测定了每个峰的径迹密度与两个峰总径迹密度之比.

Statistical properties of quadratic and circular tracks are investigated by analytical calculations and Monte Carlo computer simulations. Analytical expressions for tne effective porosity and the probability of forming single, double and multiple holes are given e.s a function of the nominal porosity. A computer simulations is given. The above probability is determined by observing the number and diameter of holes under an optical microscope.

本文利用概率理论讨论了两种孔形(圆形和方形)的蚀刻核径迹的统计性质,给出一定标称孔隙率下重孔几率的解析表达式,并借蒙特卡罗方法对多重孔现象的统计特性进行了计算机模拟。并且用重离子照射PET薄膜,在显微镜下观测了不同径迹密度(P1)下单孔、双孔和多重孔出现的几率。

Radiation measurements were made in the cabin on board the chinese

在我国1992年10月发射的返回式卫星舱内,测量的7d累积辐射剂量为0.74mGY,平均日剂量为0.11mGY,舱内次级热中子注量为1.3×l04~2.3×l04n/cm2,平均日通量为1.9×104~3.3×104n/cm2,重核粒子径迹密度为12~15径迹/cm2.d-1。研究发现,质量厚度不同的卫星头部与裙部的剂量水平无显著差异,说明300km左右的近地轨道飞行器舱内辐射剂量主要来自银河宇宙线。

 
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