Investigation of matrix effects on the neutral fractions ejected from ion-bombarded, uranium-containing solids using resonance ionization mass spectrometry

Technical Report · Thu Jan 01 00:00:00 EST 1987

OSTI ID:5572500

Christie, W H; Goeringer, D E

Resonance ionization mass spectrometry (RIMS) has been used to investigate matrix effects on the yields of U, UO, and UO/sub 2/ neutrals desorbed from ion-bombarded, uranium-containing solids. The yield of corresponding secondary ions was also examined by secondary ion mass spectrometry (SIMS). Samples studied were uranium metal, UO/sub 2/ (polycrystalline and single crystal), and U/sub 3/O/sub 8/. Results indicate that the ratio of atomic neutrals to ions in the sputtered plume is quite sensitive to sample composition and surface contamination. The ratio of ground-state U atoms to ions (U/sup 0//U/sup +/) for Ar/sup +/ sputtering from a clean U metal surface is estimated as 2.8 x 10/sup 3/ and the corresponding ratio for UO/sub 2/ as 6.2 x 10/sup 1/. 1 ref., 1 fig., 2 tabs.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5572500
• Report Number(s): DOE/OR/21400-T323; ON: DE88000594; TRN: 88-002929
• Resource Relation: 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
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
URANIUM
DESORPTION
RESONANCE IONIZATION MASS SPECTROSCOPY
URANIUM ALLOYS
SPUTTERING
URANIUM OXIDES
ALUMINIUM
AMMONIA
ARGON
BEAMS
BENZENE
CARBON
CESIUM
COMPARATIVE EVALUATIONS
ENERGY LEVELS
GROUND STATES
MATRIX ELEMENTS
REDUCING AGENTS
REDUCTION
TITANIUM
YIELDS
ZIRCONIUM
ACTINIDE ALLOYS
ACTINIDE COMPOUNDS
ACTINIDES
ALKALI METALS
ALLOYS
AROMATICS
CHALCOGENIDES
CHEMICAL REACTIONS
ELEMENTS
FLUIDS
GASES
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
MASS SPECTROSCOPY
METALS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
RARE GASES
SPECTROSCOPY
TRANSITION ELEMENTS
URANIUM COMPOUNDS
400102* - Chemical & Spectral Procedures
656003 - Condensed Matter Physics- Interactions between Beams & Condensed Matter- (1987-)