Iridium and Cobalt Isotopes are sealed radioactive sources engineered for use in industrial gamma radiography, offering high penetration power and stable emission characteristics for non-destructive testing of dense materials. These isotopes, specifically Iridium-192 and Cobalt-60, are encapsulated in corrosion-resistant, double-encased capsules to ensure safety, durability, and performance under extreme operating conditions. Designed for compatibility with Sentinel projector systems, they provide consistent radiographic results, extended service life, and full compliance with international safety and transport regulations.