光子产额
The phosphor screen has photon yield about 9 × 104/ MeV, and decay time of fluorescence measured by a single-photon-time resolution spectrometer is 833 μ s.
用单光子时间分辨谱仪测得荧光衰减时间为833μs;
analysis of angular distribution and photon yield from bremsstrahlung targets
轫致辐射靶的发射率及角分布分析
英语网 · 初中英语作文
英语网 · 四六级英语
英语网 · 双语娱乐资讯