Doubly differential cross sections for electron impact ionization of atomic hydrogen

The Glauber approximation is used to calculate doubly differential cross sections (DDC's) for electron impact ionization of atomic hydrogen at incident energies of 100, 150, and 250 eV. The angular dependences of DDC's are presented for the scattered (primary) electrons. The energies of ejected (secondary) electrons were chosen to be 5, 10, and 14 eV. A comparison is made of the present DDC's with the results of other theoretical calculations.