(from Reif, Chapter 12, problem 5) The total scattering cross section for an electron-air molecule collision...

(from Reif, Chapter 12, problem 5)

The total scattering cross section for an electron-air molecule collision is about 10^(-15)cm^2

At what gas pressure will 90 percent of the electrons emitted from a cathode reach an

anode 20 cm away? (Assume that any electron scattered out of the beam does not reach

the anode; i.e. neglect multiple scattering.)

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genius_generous answered 1 year ago

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