Optical Oscillator Strengths of Hydrogen Bromide inthe 4.5–20 eV Excitation Energy Region

Abstract

The absolute optical oscillator strength density spectrum of HBr in thevalence shell energy region of 4.5–20 eV has been determined by ahigh-resolution fast electron energy loss spectrometer. The opticaloscillator strengths for the broad a3Π+A1Π dissociation peak andthe discrete transitions of b 3Π1(ν′ = 0) and C1Π(ν′ = 0,1,2)are reported. It has been manifested clearly that the optical oscillatorstrengths of some transitions for the previous photoabsorption methodare subject to severe line-saturation effects.