Mobile Radiation Safety Barriers Acrylic Control Booths & Modular Radiation Shielding Panels (The Three Panel) The Three Panel:Three-section barrier $1.00 Request a Quote The Three Panel (SC-992): Three-section barrier 36″ x 48″ center clear lead-acrylic window Two 24″ x 48″ angled clear lead-acrylic windows 36″ x 36″ center opaque lower panel 36″ x 24″ side opaque lower panels 0.5mm lead-equivalent protection for the windows 0.8mm lead-equivalent protection for the lower panels