Electron Diffraction Tube

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The wavelength of the electrons can be calculated for various anode voltages from the radius

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SKU: MI-AAN-11407
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Description

The wavelength of the electrons can be calculated for various anode voltages from the radius of the diffracted rings and the distance between the crystal layers in the graphite.
The electron diffraction Microscope India tube illustrates the wave nature of electrons by allowing observation of interference caused by a beam of electrons passing through a polycrystalline graphite target on to a fluorescent screen. 
The electrons emitted by the heated cathode are constrained to a narrow beam by an aperture and are then focussed by means of an electron-optical system.
The resulting tight, monochromatic beam then passes through a micro-mesh nickel grating situated at the aperture of the gun. 
The electron diffraction tube Microscope India is a highly evacuated tube with an electron gun consisting of a pure tungsten heater filament and a cylindrical anode all contained in a clear glass bulb. 
Onto this grid, a thin layer of polycrystalline graphitised carbon has been deposited by vaporisation. 
This layer affects the electrons in the beam much like a diffraction grating. 
The result of this diffraction is seen in the form of an image comprising two concentric rings that become visible on the fluorescent screen. 
A spot resulting from the un-deflected electron beam continues to be visible at the centre of the rings. Also requires an EHT power supply.
Specifications:
• Max. anode voltage: 5 kV
• Max. filament voltage: 6.3 V AC
• Anode current: approx. 0.1 mA at 4 kV

Additional information

Disclaimer

The Products details given on this page are indicative in nature and Microscope India reserves the right to change them without prior notice. Buyer is also requested to re-check the specifications and other features of product at the time of order as product development is a continuous process and minor modifications may be made to design based on latest availability, process and design. 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