Peculiarities of the photon emissions from the 5p2 3Pj states of electron-impact-exited indium ion

Electron-impact-induced emission spectra of the radiative transitions from the shifted 5p(2) (3)p(0,1,2) levels to the 5s5p(3)p(1)(0) level of In+ ion have been studied in the energy range 9-30 eV by a VUV-spectroscopic method using a crossed electron and ion beam technique. Strong resonance features were observed in the energy dependence of the emission cross-sections. The structures below the excitation thresholds for the shifted 5p(2) (P-3(0,1,2)) levels are due to the radiative transitions between the autoionizing In(**)5p(2) ((3)p(0,1,2))nl and In(**)5s5p (P-3(1)0) nl states in the process of dielectronic recombination i.e. they are due to dielectronic satellites. The radiative transitions from the shifted 5p2 3P0,1,2 levels are the effective channel of population of the 5s5p (3)p(1)(0) level in In+ ion. (C) 2006 Elsevier Ltd. All rights reserved.