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- Positron Anmibilation 正电子湮没
- An electron with a negative charge, as contrasted with a positron. 电子带有负电荷,与正电荷相反的电子
- Positron is how it was detected by ? 正电子是如何被检测出来的呢?
- The antielectron, or positron, was discovered in 1932. 反电子或正电子,是在1932年被发现。
- To participate in annihilation, as do an electron and a positron. 湮灭,湮没湮灭,如电子与正电子
- To participate in annihilation,as do an electron and a positron. 湮灭,湮没湮灭,如电子与正电子
- An electron with a negative charge,as contrasted with a positron. 电子带有负电荷,与正电荷相反的电子
- This creates, as it were, electron and positron shadows. 这样也就有了电子和正电子的阴影。
- The result is that the electron shadow and the positron shadow are separated. 结果将使得电子的阴影和正电子的阴影被分开。
- The vacancy defects of samples were measured by slow positron annihilation. 借助慢正电子湮没技术研究了样品的空位型缺陷。
- Shimano introduced Positron indexed shifting for low-priced bicycles in 1977. 禧玛诺介绍了正电子索引的低价自行车在1977年转移。
- Both rely on mathematical calculations to determine the location from which a positron or photon was emitted. 这两种成像方法均依靠精确的计算来决定正电子或光于发射的位置。
- Antimatter/matter reactions have practical applications in medical imaging, see Positron emission tomography (PET). 反物质/物质反应在医学成像有实际应用,注意正电子放射断层摄影术(PET)。
- Positron Emission Tomography Study of Regional Cerebral Metabolism during General Anesthesia with Xenon in Humans. 氙气全身麻醉时对于人类局部区域脑代谢的正电子扫描图像研究。
- In positron emission tomography (PET), a patient is injected with a radioactive element that produces photons, which are sensed slice by slice. 至于正子断层扫描(PET)的做法,受试者要先注射可产生光子的放射性元素,然后从每个切片中侦测光子的存在。
- A short-lived association of an electron and a positron bound together in a configuration resembling the hydrogen atom. 电子偶素,正电子素电子与正电子的短暂结合物,两者的结合物与氢原子的结构十分相似
- This is the mathematical basis of computed tomography and positron emission tomography. 这是计算机层析成像和正电子层析成像的数学基础。
- Positron emission tomography(PET) is a non-invasive method to detect the distribution of radionuclide in vivo. 正电子发射体层摄影术是一种无创性的探测生理性放射性核素在机体内分布的断层显像技术。
- All patients underwent fluorodeoxyglucose positron emission tomography 6 to 8 months after GKS. 所有的病人都在加马刀放射手术治疗后的6-8个月实施氟-18去氧葡萄糖正子断层摄影。
- Positron emission tomography, or PET, is nuclear cardiac imaging for optimally assessing blood flow in the heart. 正电子发射体层摄影术,或宠物,是核心脏成像,为最大限度地评估血流在心里。