Characterization of yttrium aluminum garnet/YAG/using 14-meV neutron activation

Technical Report · Tue Dec 01 04:00:00 EST 1987

OSTI ID:7031505

Burns, F; Chen, M F; Caslavsky, J L

A nondestructive method for the analysis of yttrium, aluminum and oxygen in yttrium aluminum garnet /YAG/ by 14-MeV neutron-activation analysis wad developed and evaluated. The fast neutron induces primarily /n,2n/, /n,p/, or /n, alpha/ reactions with yttrium, aluminum, and oxygen to produce isotopes with measurable characteristic gamma-ray spectra. Concentrations of Y, Al and O were determined on the basis of calibrated nuclear decay emission spectra recorded on selected standards. After each analysis the crystal was returned to the furnace for further adjustments of the growth parameters, and any resultant elemental variations were observed in the next analysis. The accuracy of this method was determined by repeated analyses with various YAG crystals from a series of separate furnace runs.

• Research Organization: Army Materials Research Agency, Watertown, MA (USA). Materials Technology Lab.
• OSTI ID: 7031505
• Report Number(s): AD-A-191925/7/XAB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400101* -- Activation
Nuclear Reaction
Radiometric & Radiochemical Procedures
ACCURACY
ACTIVATION ANALYSIS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
BARYON REACTIONS
BARYONS
CHALCOGENIDES
CHEMICAL ANALYSIS
CRYSTALS
ELEMENTARY PARTICLES
ELEMENTS
FAST NEUTRONS
FERMIONS
FURNACES
HADRON REACTIONS
HADRONS
ISOTOPES
MATERIALS TESTING
NEUTRON REACTIONS
NEUTRONS
NONDESTRUCTIVE TESTING
NONMETALS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEONS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
TESTING
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES