Development of NDA instruments for the Los Alamos SIS (Special Isotope Separation) Facility

Conference · Sun Jan 01 00:00:00 EST 1989

OSTI ID:5913407

Li, T. K.; Rinard, P. M.; Schneider, C. M.; Atencio, J. D.; Hyman, D. H.; Kroncke, K. E.; Painter, J.; Siebelist, R.; Holbrooks, O.; Halbig, J. K.

The Los Alamos Special Isotope Separation Facility produces special plutonium isotopes and converts plutonium scrap by using the molecular laser isotope separation (MLIS) process in a gaseous plutonium hexafluoride (PuF/sub 6/) phase. To provide important process-development and accountability information, we have developed and installed four nondestructive assay (NDA) instruments for that facility. These instruments are (1) an in-line plutonium isotopic analysis system to measure plutonium isotopes in gaseous, solid, and liquid phases, (2) an in-line sodium iodide (NaI) monitoring system consisting of six 2-in. by 2-in., two 2-in. by 24-in., and one 2-in. by 22-in. NaI detectors at specified components (a feed bottle, a feed-transfer cold trap, a compressor, a heat exchanger, a collector, a nozzle prefilter, and a tails cold trap) in the flow loop, (3) a portable high-resolution germanium gamma-ray system for plutonium isotopic analysis, and (4) a portable NaI gamma-ray holdup monitor. This paper discusses the measurement principles, hardware and software designs, and performance associated with these NDA instruments. 2 refs, 11 figs., 2 tabs.

• Research Organization: Los Alamos National Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5913407
• Report Number(s): LA-UR-89-2259; CONF-890736-57; ON: DE89015272
• Resource Relation: Conference: 30. annual meeting of the Institute of Nuclear Materials Management, Orlando, FL, USA, 9-12 Jul 1989; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
ISOTOPE SEPARATION PLANTS
NONDESTRUCTIVE ANALYSIS
PLUTONIUM
ACCOUNTABILITY
GAMMA DETECTION
LASER ISOTOPE SEPARATION
MEASURING INSTRUMENTS
NAI DETECTORS
NUCLEAR MATERIALS MANAGEMENT
PLUTONIUM FLUORIDES
ACTINIDE COMPOUNDS
ACTINIDES
CHEMICAL ANALYSIS
DETECTION
ELEMENTS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
INDUSTRIAL PLANTS
ISOTOPE SEPARATION
MANAGEMENT
METALS
NUCLEAR FACILITIES
PLUTONIUM COMPOUNDS
RADIATION DETECTION
RADIATION DETECTORS
SCINTILLATION COUNTERS
SEPARATION PROCESSES
SOLID SCINTILLATION DETECTORS
TRANSURANIUM COMPOUNDS
TRANSURANIUM ELEMENTS
400202* - Isotope Effects
Isotope Exchange
& Isotope Separation
050800 - Nuclear Fuels- Spent Fuels Reprocessing