  In this article, we explore an alternative derivation of Hawking radiation.
Instead of the field-theoretic derivation, we have suggested a simpler
calculation based on quantum mechanical reflection from a one-dimensional
potential. The reflection coefficient shows an exponential fall in energy
which, in comparison with the Boltzmann probability distribution, yields a
temperature. The temperature is the same as Hawking temperature for spherically
symmetric black holes. The derivation gives an exact local calculation of
Hawking temperature that involves a region lying entirely outside the horizon.
This is a crucial difference from the tunneling calculation, where it is
necessary to involve a region inside the horizon.
