Modeling of fissile material diversion in solvent extraction cascades
Changes were calculated for measurable parameters of a solvent extraction section of a reprocessing plant resulting from postulated fissile material diversion actions. The computer program SEPHIS was modified to calculate the time-dependent concentrations of uranium and plutonium in each stage of a cascade. The calculation of the inventories of uranium and plutonium in each contactor was also included. The concentration and inventory histories were computed for a group of four sequential columns during start-up and for postulated diversion conditions within this group of columns. Monitoring of column exit streams or of integrated column inventories for fissile materials could provide qualitative indications of attempted diversions. However, the time delays and resulting changes are complex and do not correlate quantitatively with the magnitude of the initiating event.
- Research Organization:
- Georgia Institute of Technology, Atlanta, GA (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5417022
- Report Number(s):
- UCRL-15243; TRN: 80-011246
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
FUEL REPROCESSING PLANTS
NUCLEAR MATERIALS DIVERSION
DETECTION
COMPUTER CODES
INVENTORIES
PLUTONIUM
S CODES
SOLVENT EXTRACTION
URANIUM
ACTINIDES
ELEMENTS
EXTRACTION
METALS
NUCLEAR FACILITIES
SEPARATION PROCESSES
TRANSURANIUM ELEMENTS
055001* - Nuclear Fuels- Safeguards
Inspection
& Accountability- Technical Aspects
050800 - Nuclear Fuels- Spent Fuels Reprocessing