Results from uranium deposition studies for development of a Limited Frequency-Unannounced Access (LFUA) inspection strategy for gas centrifuge enrichment plants

Conference · Sat Jun 01 00:00:00 EDT 1985

OSTI ID:6360878

Cooley, J N; Fields, L W; Swindle, D W

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: 93% of the uranium deposit is removed within 15 min when a pipe is pressurized with gaseous ClF/sub 3/; 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 air inleakage will be the cause of the largest deposits in centrifuge plant process header pipes. 3 refs., 3 figs., 3 tabs.

• Research Organization: Oak Ridge Gaseous Diffusion Plant, TN (USA)
• DOE Contract Number: AC05-84OT21400
• OSTI ID: 6360878
• Report Number(s): K/OA-5857; CONF-850765-42; ON: DE86003855
• Resource Relation: Conference: 26. annual meeting of the Institute of Nuclear Materials Management, Albuquerque, NM, USA, 21 Jul 1985; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
CENTRIFUGE ENRICHMENT PLANTS
IAEA SAFEGUARDS
URANIUM
DEPOSITION
GAS FLOW
INSPECTION
ACTINIDES
ELEMENTS
FLUID FLOW
INDUSTRIAL PLANTS
ISOTOPE SEPARATION PLANTS
METALS
NUCLEAR FACILITIES
SAFEGUARDS
055001* - Nuclear Fuels- Safeguards
Inspection
& Accountability- Technical Aspects
050502 - Nuclear Fuels- Uranium Enrichment- Centrifugation- (-1989)