X-Ray Tube Design Parameters

Move cursor to identify components of filament assembly

2 filaments Large Small During first trigger activation of exposure switch Voltage applied to selected focal spot Filament heated to full operating temperature Electrons boil off (Thermionic Emission or Edison Effect) Until high voltage applied to x-ray tube, electrons congregate close to the filament forming electron cloud Negative charge placed on filament cup during exposure to focus electrons

Basics of X-ray and Mammographic Systems


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