A mounting apparatus for a shielding system for customized shielding of a patient or an operator from radiation. The shielding system is mounted on a rail of a table used for interventional medical procedures comprising a longitudinal rail edge. In use, the mounting apparatus is slidably engaged to a rail by mating a t-shaped groove to the rail. Extending from the mounting apparatus is one or more movable rods from which protective radio-opaque curtains are suspended.