Effects of Electron Collisions on the Width of Spectral Lines

The conditions under which the charges of a plasma take on particle characteristics and can be treated by classical mechanics are stated in terms of the half-width of the thermodynamic wave packet.A simple derivation is given for the quantity γU defined in a previous paper (the line width resulting in the absence of degeneracy), which shows the formula there developed to be correct for large γU; this removes the earlier restrictions.