Transmission of 4.5 keV Ar9+Ar9+ ions through a single glass macro-capillary

We present experimental studies of the transmission of slow 4.5 keV Ar9+Ar9+ ions through a single cylindrical-shaped glass capillary of macroscopic dimension with large aspect ratio. We show that an electric guiding field can also build-up inside a macro-scale single capillary, and thereby slow highly charged ions can be transmitted through the macro-capillary, keeping their initial charge state in a similar manner as for the case of nano-capillaries. Our results clearly indicate the existence of the guiding effect even in the case of large tilt angles.