Improvement of the preparation procedure of carbon stripper foils from the laser plasma ablation-deposition process

Abstract

Due to series production of the 4 μg/cm 2 thick carbon stripper foils, prepared by laser plasma ablation-deposition, several improvements of the preparation procedure could be realized without impairing the crystal structure of random orientation, which leads to the insensitiveness against irradiation damage caused by swift heavy ions. Now carbon stripper foils of this kind can be floated and slackened without any plastic support. The mechanical strength of such foils was tested in dependence of ablation parameters and compared to carbon foils prepared by evaporation-condensation. So far the laser plasma ablation procedure for carbon was limited to a maximum thickness of about 10 μg/cm 2. Investigations were performed to extend the thickness range to 100 μg/cm 2 and more.