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Abstract
The motivation for application-oriented research at GSI came from two sides. First, it was known from the work of Fleischer, Price and Walker at General Electric (USA) that heavy ion can be used as precision drills on a microscale. And heavy ions from fission reactions had been used to produce filters of unequalled commercial quality at Nuclepore Corporation. The UNILAC seemed to be just the right instrument to do this even better. Here the range of the ions was larger, their damage density could be tuned at will by the choice of a suitable ion, and they could be aimed more accurately. So a larger variety of material could be drilled deeper and more precisely.