FIG. 5 is a graph showing the analytical results; FIG. 6 is another graph of the analytical results; FIG. 7 is a perspective view of a major part of an X-ray tube having a filament according to the present invention; FIG. 8 is a sectional view showing the eccentric filament configurati...
Performance and reliability of a filament are enhanced by balancing thermionic emission from the filament and evaporation rates of the filament.FIG. 4illustrates a graph of thermionic emission and evaporation rates from tungsten filaments with respect to emitter temperature. The graph indicates a possible...