Electron Diffraction Tube

Highly evacuated electron tube for demonstrating the wave nature of electrons through the observation of interference caused by passage of electrons through a polycrystalline graphite lattice (Debye-Scherrer diffraction) and rendered visible on a fluorescent screen. Also intended for determining the wavelength as a function of the anode voltage from the radii of the diffraction rings and the lattice plane spacing of graphite, as well as confirming de Broglie's hypothesis.

Specifications:

Max. filament voltage: ?7.5V AC/DC

Max. anode voltage: 5 kV

Anode current: 0.15mA at 4kV

Lattice constant of graphite: d10 = 0.213 nm - d11 = 0.123 nm