Experiments demonstrate the feasibility of using microfabricated cold field emission cathodes in x-ray sources for medical imaging. Electron beam currents of 25mA at voltages of 25kV have been used to produce x-ray source focal spot diameters of 0.2mm. 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.
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P. R. Schwoebel (2006) studied this question.
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