Temporary Substrate Research Articles

Utilisation d'un quartz piezo-electrique comme substrat, pour la fabrication de cibles de terres rares autosupportées, sous forme metallique, non oxydées

A technique for preparing rare earth self-supporting targets is described. These high purity foils are used for nuclear spectroscopy, with a tandem Van de Graaff accelerator. Target thicknesses range from 1000 μm/cm 2 to 2500 μm/cm 2. The originality of this procedure consists in using the piezo-electric quartz for target thickness measurements and for temporary substrate. With this method, it is possible to measure the target thickness without geometrical errors and to suppress the effects of the molecular flux anisotropy.