The effect of resonant elastio collisions of electrons in H e on their "exact" mean energy variation
Dfierent values of E/N and both isotropio and anisotropic initial velocity distributions, just
It is shown that for auffioiently elevated values of E/N a neoesaery condition for electronThis result is discussed in the light of an interpretative model advanced to explain some elec-for free path in the presence of a d.c. electric field ia analyeed. after collision, are considered.(resonance) trapping becomes satisfied. trolumineacence phenomena in rare gases.