Abstract:Purpose: To understand the propagation of electrons through the acceleration gradient of the Xoft micro‐miniature x‐ray source via electrostatic modeling of the fields and x‐ray pinhole camera imaging. Materials and Methods: 1) A 3D model of the source was built using OmniTrak3, and electron trajectories were traced from the hot cathode to the x‐ray producing anode. A finite element model of the filament temperature profile was input to a Richardson‐Dushman thermionic emission/extraction model to determine the… Show more
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