Safety, and security monitoring system for spent nuclear fuel dry cask storage

Abstract Spent nuclear fuel discharged from a nuclear power reactor is stored in a wet pool for approximately 7–10 years to reduce decay heat. Then, it transferred for processing or to a dry storage waiting for final disposal. Dual-purpose metal casks have proven to be a good technical, economic, safe, and flexible solution that is adaptable to long term spent fuel storage. This research work explores the critical aspects of safety and security related to the dry storage of Boiling Water Reactor (BWR) spent fuel assemblies cooled down for 10 years were loaded in the TN-68 dual purpose casks. The source term of the spent fuel was calculated using ORIGEN- ART/SCALE code, which used as input for MCNP5 code for dose rate calculations around the cask. The radioactive source term will be compared with the safe dose rate limits according to the recommendations of 10 CFR Part72. Additionally, the security measures and preparedness of the proposed site will be monitored and analyzed to fulfill the nuclear safety, security and safeguards objectives in normal storage and in case of attack from terrorism or malicious acts. Surveillance ground radars system with large microwave perpendicular detection field equipped with long-range laser infrared cameras used formonitoring and detecting any intrusion to the dry fuel cask storage site. Onsite cranes used for the movement and handling of the casks will be protected by using motion alarm cameras. For security system evaluation we used the Estimate of Adversary Sequence Interruption (EASI) model.