positron beam中文什么意思

例句与用法

1. Bes is a general - purpose detector located in the interaction region at the southern end of the bepc storage ring , where the electron and positron beams collide
   这组常数将被用在探测器径迹重建的过程中，将电子学脉冲转换到z向位置信息。
2. In this paper , the high frequency c - v , the annihilation of slow positron beam and the infrared reflectance techniques were used to study the property of interface in sio2 / sic , the defects in sio2 and their physical characteristics
   首先使用高频c - v测试技术，在有光照和无光照的条件下，对p型和n型sio _ 2 sic的电容-电压特性作了研究。
3. The 0 - 15kev energy slow - positron beam was used to measure the dopple broadening in sio2 / sic . both the s and w parameters clearly showed that the density of defect in sio2 layer had decreased after annealing in n2
   利用0 - 15kev的慢正电子多谱勒能量展宽测试sio _ 2 sic的缺陷情况，发现不管是n型还是p型，氧化层附近其s参数经过n _ 2退火明显减小， w参数在这个部位增大。
4. In addition , researchers have shown that low - cost laser accelerators are suitable for many of the same applications as conventional accelerators , such as producing short - lived radioisotopes used in medical diagnostics and generating neutron and positron beams for studies of materials
   此外，研究人员也证明，在许多应用上，廉价的雷射加速器都跟传统加速器有同样的功用，例如用来产生医学诊断用的短生命期放射性同位素，或制造检测物质用的中子与正子束。