positron decay
英 [ˈpɒzɪtrɒn dɪˈkeɪ]
美 [ˈpɑːzɪtrɑːn dɪˈkeɪ]
正电子衰变
双语例句
- Improvement on positron annihilation lifetime spectrometer with fast decay component in baf_2 luminescence
利用BaF2晶体快速闪烁发光性质改进正电子湮没寿命谱仪 - The various corrections in clinical Positron Emission Tomography ( PET) are described, including detectors normalization, decay correction, scatter and attenuation correction, calibration etc.
介绍了正电子发射断层扫描（PET）中各种校正的意义及常见算法，这些校正包括归一化校正，衰交校正，散射与衰减校正，活度刻度等。 - The corrections for the coincidence of γ-rays with X-rays ( from electron capture or internal conversition) and with annihilation quanta from positron decay are also discussed.
考虑了γ射线与X射线以及与正电子湮没光子的级联修正问题。 - Positron emission tomography ( PET) is a powerful medical imaging method for measuring the distribution of the positron emitter in the human body by co-incidence of the annihilation photons resulting from positron decay.
正电子发射断层（PET）是一项强大的医学影像技术，它通过检测正电子-电子湮灭所产生的光子以确定正电子放射性物质的体内分布。