This is directly analogous to the transparency of a transmission line nonuniformity to a signal whose wavelength is an integer multiple of the length of the nonuniformity, and it can be explained to first order by examining the  probability current transmission coefficient for a rectangular potential well.
This often masks the Rashba effect in electron spin interferometers, where it causes oscillatory conduc-  tance, and the analogous effect for neutron-nuclei interactions is known as size resonance. This is directly analogous to the transparency of a transmission line nonuniformity to a signal whose wavelength is an integer multiple of the length of the nonuniformity, and it can be explained to first order by examining the  probability current transmission coefficient for a rectangular potential well. For ten points, name the effect that may best be defined as the transparency of noble gas atoms to low energy electrons and that is greatest in argon.
This often masks the Rashba effect in electron spin interferometers, where it causes oscillatory conduc-  tance, and the analogous effect for neutron-nuclei interactions is known as size resonance.
Ramsauer-Townsend effect (or Townsend-Ramsauer effect; do not accept ”Townsend effect,”  which is something else)