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Nuclear Safeguards Education Portal
  

What is Containment and Surveillance and why do we need it? (cont)

IAEA inspectors connect a fiber optic seal to a verifier consisting of a verifier head, a still video camera and a liquid crystal display monitor.  (Source: Dean Calma/IAEA)
IAEA inspectors connect a fiber optic seal to a verifier consisting of a verifier head, a still video camera and a liquid crystal display monitor. (Source: Dean Calma/IAEA) 

Safeguards inspectors are generally not present at a facility 24 hours a day, 7 days a week. When inspectors are not present, it is important to ensure and verify that a State continues to abide by the obligations of its safeguards agreement. The supplementary information provided by C/S measures in place at a facility is intended to aid in:

  • Monitoring declared activities
  • Detecting undeclared activities
  • Verifying the integrity of equipment or items
  • Maintaining continuity of knowledge between inspections
  • Reducing inspector burden

It should be noted that the detection of an anomaly relating to C/S measures does not necessarily by itself indicate that material has been removed. The ultimate resolution of C/S anomalies (e.g. broken seals) is provided by nuclear material control and accounting measures (e.g. the reverification of the material under seal).

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