Results from uranium deposition studies for development of a limited frequency-unannounced access (LFUA) inspection strategy for gas centrifuge enrichment plants
Uranium deposition studies were performed on a test loop system designed to simulate process gas flow through the header piping of a gas centrifuge enrichment plant. The objectives of these studies were to investigate the effectiveness of an in-line gaseous cleaning agent in removing uranium in pipe deposits and to analyze long-term deposition growth and isotopic exchange under simulated centrifuge plant operating conditions. The test loop studies are described, the results are reported, and the implications for analyzing actual plant data are discussed. Results indicate that (1) 93% of the uranium deposit is removed within 15 min when a pipe is pressurized with gaseous ClF/sub 3/, (2) the isotopic abundance of a highly enriched uranium deposit remains unchanged when UF/sub 6/ of a lower assay is introduced into the pipe, and (3) air inleakage will be the cause of the largest deposits in centrifuge plant process header pipes. 1 ref., 3 figs., 3 tab.
- Research Organization:
- Oak Ridge Gaseous Diffusion Plant, TN (USA)
- DOE Contract Number:
- AC05-84OT21400
- OSTI ID:
- 5538686
- Report Number(s):
- K/OA-5807; CONF-850556-11; ON: DE85012096
- Resource Relation:
- Conference: 7. symposium on safeguards and nuclear material management, Liege, Belgium, 21 May 1985
- Country of Publication:
- United States
- Language:
- English
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Results from uranium deposition studies for development of a limited frequency-unannounced access inspection strategy for gas centrifuge enrichment plants
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CENTRIFUGE ENRICHMENT PLANTS
IAEA SAFEGUARDS
INSPECTION
DEPOSITION
GAS CENTRIFUGES
GAS FLOW
URANIUM 235
URANIUM HEXAFLUORIDE
ACTINIDE COMPOUNDS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
CENTRIFUGES
CONCENTRATORS
EVEN-ODD NUCLEI
FLUID FLOW
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HEAVY NUCLEI
INDUSTRIAL PLANTS
ISOMERIC TRANSITION ISOTOPES
ISOTOPE SEPARATION PLANTS
ISOTOPES
MINUTES LIVING RADIOISOTOPES
NUCLEAR FACILITIES
NUCLEI
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SAFEGUARDS
URANIUM COMPOUNDS
URANIUM FLUORIDES
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