The carbon stripping foils Can be prepared with the AC and DC arc discharge methods

or even sandwiched with AC-DC alternative layers.The lifetime of the carbon stripping foils of 19μg/cm2 prepared with different methods and/or structures was measured.The factors affecting the bombarding lifetime of the carbon stripping foils

especially the method of the foil preparation and the structure of the carbon stripping foils

were discussed.It is observed that the foils prepared with the DC arc discharge method have a longer bombarding lifetime than those prepared with the AC arc discharge method.