1) An electron beam coming from an electron gun (shown below) consists of electr

Question

1) An electron beam coming from an electron gun (shown below) consists of electrons that are uniformly distributed within a cylindrical region of space having a radius a = 1 [mm]. The axis of the cylinder is along the z axis, and the electrons are moving with a velocity vector v in the positive z direction. The velocity of the electrons is 0.1c where c is the speed of light (2.99792458 ´ 108 [m/s]). The magnitude of the current in the beam is 1 Amp.





a) Calculate the spacing between the electrons, assuming that they are arranged on a rectangular cubical lattice, with spacing between adjacent electrons in the x, y, and z directions.

Explanation / Answer

a=1mm

10±3 mm

=6.64*106

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