Target and projectile K x-ray production by 100, 160, and 200 MeV Nb collisions with thick solid targets

Abstract

Résumé. 2014 On donne les valeurs des sections efficaces de production de rayons-x K dans des collisions par des projectiles de K-vacancy production theories were tested over this broad range including electron promotion with vacancy sharing (molecular model), direct excitation (ECPSSR theory), modified binary encounter approximation (BEA), as well as some semi-empirical recipes. For most of the collision systems investigated the molecular model is found to be the dominant mechanism for K-vacancy production in both projectile and target. For highly asymmetric collisions, the ECPSSR calculations are found to be within a factor of two of the data for the lightest targets (C, Al), but fail for the heaviest targets.