XANES Identification of Plutonium Speciation in RFETS Samples

Journal Article · Wed Jun 03 00:00:00 EDT 2009 · J. Alloys Compounds 444-445:540,2007

OSTI ID:953939

LoPresti, V; Conradson, S D; Clark, D L

Using primarily X-ray absorption near edge spectroscopy (XANES) with standards run in tandem with samples, probable plutonium speciation was determined for 13 samples from contaminated soil, acid-splash or fire-deposition building interior surfaces, or asphalt pads from the Rocky Flats Environmental Technology Site (RFETS). Save for extreme oxidizing situations, all other samples were found to be of Pu(IV) speciation, supporting the supposition that such contamination is less likely to show mobility off site. EXAFS analysis conducted on two of the 13 samples supported the validity of the XANES features employed as determinants of the plutonium valence.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 953939
• Report Number(s): SLAC-REPRINT-2009-453; JALCEU; TRN: US201004%%676
• Journal Information: J. Alloys Compounds 444-445:540,2007, Vol. 444-445; ISSN 0925-8388
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABSORPTION SPECTROSCOPY
ACTINIDE ALLOYS
ACTINIDE COMPOUNDS
ASPHALTS
BUILDINGS
CONTAMINATION
MOBILITY
PLUTONIUM
PLUTONIUM COMPOUNDS
ROCKY FLATS PLANT
SEDIMENTS
SURFACES
VALENCE
X-RAY SPECTROSCOPY
Other
OTHER