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Tube electron diffraction D (Each)

Item #: XAR060550

£1,218.76

Tube electron diffraction D (Each)

4 in stock

Electron Diffraction Tube Study of the de Broglie hypothesis . Detection by ring patterns, Planck's constant. Variation of 'Wavelength' with anode voltage .Establishment of the dual nature of the electron. Calculation of spacing of diffracting planes. Re-assessment of supposed carbon atom crystal arrangement The electron gun uses an indirectly heated oxide-coated cathode and projects a converging narrow beam of electrons through a thin layer of graphitised carbon, which is supported on a fine mesh grid over the exit aperture of the gun assembly. Electrons diffracted during transmission through the carbon traverse the evacuated experimental zone to impinge on the luminescent screen in ring patterns, the centre of the rings being the spot caused by the undiffracted electrons. The brightest rings are caused by diffraction at the planes in the carbon atoms separated by 1.23 and 2.13 angstroms, d11 and d10 respectively. The filament heater assembly is terminated at two 4mm sockets in the end-cap and the anode assembly is connected to a 4mm plug mounted on a side-cap. Leads are available. Anode Voltage 1.500-5.000 volts DC Filament Voltage 5.0 to 9.0V AC/DC as indicated on each tube Anode Current 0.2-0.4 mA

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