International
Tables for
Crystallography
Volume C
Mathematical, physical and chemical tables
Edited by E. Prince

International Tables for Crystallography (2006). Vol. C. ch. 4.3, p. 392

Figure 4.3.4.2 

C. Colliexa
[Figure 4.3.4.2]
Figure 4.3.4.2

A primary electron of energy E0 and wavevector k is inelastically scattered into a state of energy E0ΔE and wavevector k′. The energy loss is ΔE and the momentum change is ħq. The scattering angle is θ and the scattered electron is collected within an aperture of solid angle dΩ.