Lead Shielding (X-ray rooms)

Required for all X-ray-producing rooms. Thickness varies by beam energy + workload:

• Diagnostic (CT, DR, fluoro) — typically 1/16" to 1/8" lead sheet
• Linac vault — up to several feet of concrete with lead cladding at primary barriers
• Mammo — room shielding per occupancy calculations

Physics survey

Every install + significant equipment change → physicist shielding survey. State licensing requires the survey on file.