PHYSICS 244 . 
EXPERIMENT #8
 

 

Q.1.     Calculate the quantity pc for an electron with kinetic energy
of 0.764 MeV.

 

 

Q.2.     Assuming that the incoming electrons have low enough momentum
so that  MV2/2 is a reasonable estimate of the initial kinetic 
energy, determine the stopping distance for electrons as a function of the
initial energy.  (Hint:  proceed as in the discussion for Experiment
#7 on gamma rays.  Instead of considering the incremental loss in the
number of particles per thickness dx, set up an equation for the
incremental loss of energy, dE, per dx. The integral is not
difficult.)