Testing the limits of the Maxwell distribution of velocities for atoms flying nearly parallel to the walls of a thin cell

30 Oct 2017 Todorov Petko Bloch daniel

For a gas at thermal equilibrium, it is usually assumed that the velocity distribution follows an isotropic 3-dimensional Maxwell-Boltzmann (M-B) law. This assumption classically implies the assumption of a "cos theta" law for the flux of atoms leaving the surface, although such a law has no grounds in surface physics... (read more)

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  • ATOMIC PHYSICS