Relative x-ray backlighter intensity comparison of Ti and Ti/Sc combination foils driven in double-sided and single-sided laser configuration

Use of multiple backlighter foils and/or double-sided laser interaction geo metry with backlit imaging can result in improved backlighter efficiency. A n experimental comparison of backlighter intensity for Ti foils and Ti/Sc c ombination foils in both the one-sided and double-sided laser-interaction c onfiguration is presented. Spectrally integrated framing camera images show intensity contributions of front and rear backlighter surfaces for both fo il types. Analysis of time-resolved x-ray spectra collected from foil targe ts show the relative contribution of Ti and Sc 2-1 He-like resonance lines to the total backlighter intensity. (C) 2001 American Institute of Physics.