Abstract
Self-supporting carbon thin films are needed for the heavy-ion beam at the Gesellschaft für Schwerionenforschung (GSI) as targets, as stripper foils, and as carrying substrates. The thin films are produced through resistance evaporation under high vacuum. Carbon is deposited on a glass plate that is covered with an organic material that is soluble in water. Through dissolving the interlayer a self-supporting carbon film is obtained, which is fetched on an aluminium frame. Thin films of 5 g/cm2 up to 100 g/cm2 can be produced with this method. The production process as well as the changing of the layer structure through the energy deposit is going to be discussed.
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