Mobile Radiation Safety Barriers Acrylic Control Booths & Modular Radiation Shielding Panels (The Two Panel 4824) The Two Panel 4824:Two-section modular barrier $1.00 Request a Quote The Two Panel 4824 (SC-993): Two-section modular barrier 48″ x 48″ and 24″ x 48″ clear lead-acrylic windows 36″ x 48″ and 36″ x 24″ opaque lower panels 0.5mm lead-equivalent protection for the windows 0.8mm lead-equivalent protection for the lower panels