Ar In Energy Range Research Articles

A comparison of balmer α, β, γ emission in collisions between H1+, H2+, H3+ and He, Ne, Ar

Balmer α, β, γ emissions have been measured in collisions between H1+, H2+, H3+, and He, Ne, Ar in energy range of 50-150keV, using TN-1710 optical multichannel analysis system (OMA). The emission cross sections of Hα, Hβ, Hγ lines are given. The experimental results demonstrate that the emission cross sections of Hα,β,γ lines in H3+ +He, Ne, Ar collision systems are larger than those in H1+, H2+ +He, Ne, Ar, respectively.

EXPERIMENTAL STUDIES OF EXCITED STATES IN COLLISIONS BETWEEN He+ AND Ar

One electron capture process and direct exciting process both occured in collision between-He+ and Ar in energy range 70-150 keV. From the comparison of experimental results between He++Ar and He++Ne collision systems, we see that the emission cross sections of the triplet Hel of the former are much larger than those of the latter, when the velocity of incident ion He+ is small. The latter become larger than the former, when the velocity of He+ is greater than 1.0 a.u (2.2×108 cm/s). Therefore, the potential energy defect and the velocity of projectile are very important factors in the electron capture process and there is a competition between them-in collisions.