Year
1999
Abstract
A computerized system used for conditioning and accounting for the highly enriched uranium inventory of three reactors (six material balance areas) at the Petersburg Nuclear Physics Institute has been developed. This system has advanced security features and is unique in that both controlling and accounting for nuclear materials are accomplished in \"real time\". Other features of this system include integration with proximity readers used to positively identify nuclear materials and the individuals moving the nuclear materials controlled access using a password and a diskette an archive file used to make irrevocable registration of any changes in the system customized menus that minimize errors during manual data input. Requests to move nuclear material must be generated from within the system. Personnel entry into and exit from the material balance area is registered in the system using proximity cards. A separate proximity card system registers the removal of the nuclear material from the storage location. As a container containing nuclear material and equipped with a proximity card leaves the vault, it passes a reader and activates a timer; if the nuclear material does not arrive at the specified destination within a predetermined time limit, the system triggers an alarm.