What is new in convoy electron physics

In preference to attempting to review the already voluminous literature concerning electron capture (ECC) and loss (ELC) to continuum states in ion-atom and ion-solid collisions - referred to here under the collective term convoy electron production - space and time constraints suggest a wiser course. I choose to focus on the rapid advances in understanding that have occurred in the past year owing to the development of new and powerful techniques for making doubly differential measurements of convoy electron distributions having comparably high resolution in longitudinal and transverse components of electron ejection velocity in the projectile rest frame. 8 refs., 4 figs