Field emission arrays for medical x-ray imaging
Field emission arrays for medical x-ray imaging
复制标题
DOI：
10.1063/1.2186388
复制
发表时间：
2006-03-13
影响因子：
4
通讯作者：
Schwoebel, PR
中科院分区：
文献类型：
--
作者：
Schwoebel, PR
实验证明了微加工冷场发射阴极用于医学成像X射线源的可行性。在25 kV的电压下的25 mA的电子束电流已被用来产生0.2 mm的X射线源焦斑直径。从钼阳极的过滤和未过滤的X射线光谱的分析显示出清晰的特征X射线线。这些X射线源特性与人类乳房成像的要求一致。(c)2006年，美国物理学会。
Experiments demonstrate the feasibility of using microfabricated cold field emission cathodes in x-ray sources for medical imaging. Electron beam currents of 25 mA at voltages of 25 kV have been used to produce x-ray source focal spot diameters of 0.2 mm. Analysis of both filtered and unfiltered x-ray spectra from molybdenum anodes show clear characteristic x-ray lines. These x-ray source characteristics are consistent with the requirements for human breast imaging. (c) 2006 American Institute of Physics.