Passive radiation safety refers to the use of physical barriers and materials to protect individuals and the environment from exposure to ionizing radiation without relying on active devices or power sources. It involves the implementation of design and engineering measures to minimize radiation hazards and ensure safe working environments in facilities where radioactive materials are used or stored.

Key elements of passive radiation safety include:

Shielding Materials: Using radiation shielding materials, such as lead, concrete, or steel, to create barriers that absorb or attenuate ionizing radiation, reducing its intensity to safe levels.Controlled Access Areas: Designating controlled access areas with appropriate shielding to limit the exposure of workers and the public to ionizing radiation.

• Distance: Increasing the distance between radioactive sources and individuals to decrease radiation exposure levels.
• Time Limitation: Limiting the time of exposure to ionizing radiation by implementing procedures that minimize the duration of activities involving radioactive materials.
• Proper Containment: Ensuring proper containment of radioactive materials in shielding containers or enclosures to prevent their dispersion.
• Storage and Transportation: Implementing secure storage and transportation practices to prevent radiation leaks or accidents.
• Personnel Monitoring: Provide personnel with radiation monitoring devices, such as dosimeters, to track their radiation exposure levels and ensure safety limits are not exceeded.
• Training and Education: Providing comprehensive training and education to personnel working with radioactive materials on radiation safety protocols and practices.
• Emergency Preparedness: Developing emergency response plans and procedures to address potential radiation incidents and mitigate their impact.