Mobile Radiation Safety Barriers Acrylic Control Booths & Modular Radiation Shielding Panels (The Two Panel 3624) The Two Panel 3624:Two-section barrier at a 30° angle. $1.00 Request a Quote The Two Panel 3624 (SC-991): Two-section barrier at a 30° angle 36″ x 48″ and 24″ x 48″ clear lead-acrylic windows 36″ x 36″ and 36″ x 24″ opaque lower panels 0.5mm lead-equivalent protection for the windows 0.8mm lead-equivalent protection for the lower panels