I. Sugai et al., CARBON STRIPPER FOIL PREPARATION BY ION-BEAM SPUTTERING WITH 3.5 KEV KR IONS, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 397(1), 1997, pp. 137-139
Heavy ion-beam sputtering with low beam voltage was found to be applic
able for the preparation of long-lived carbon stripper foils. A test f
oil (25 mu g/cm(2)) made by this method survived an integrated ion cur
rent of 6213 mC/cm(2) corresponding a lifetime of about 200 times the
best commercially available foil made by evaporation-condensation. The
present method can be expected to be applicable to magnetron sputteri
ng for mass production of carbon stripper foils.