This experiment measures the electron work function of tungsten using an "ideal" diode configuration, where the tungsten cathode is co-axial with a cylindrical anode. This design limits electron emission to a uniformly heated region, approximating an infinite-length electrode to eliminate edge effects. For the measurement experiment of Metal Electric Work Function (work function), basic experimental methods such as Richardson's straight line measurement method, epitaxy measurement method and compensation measurement method are comprehensively applied. There is better skill training in data processing. Therefore, this is a more meaningful experiment.
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