Pressure/temperature sensitive inorganic phosphors. [La/sub 2/O/sub 2/S:Eu]

Conference · Thu Jan 01 04:00:00 EST 1987

OSTI ID:6910586

Seals, W O; Offen, H W; Turley, W D

Kistler gauges are presently used to monitor pressures generated in various types of experimental tests. When a one-gallon container of stores liquid propellant was impacted by a shaped charge, hydraulic pressures in excess of 100,000 psi were produced. This destroyed the gauges. A class of inorganic phosphors, including rare earth-doped lanthanum oxysulfide (La/sub 2/O/sub 2/S:Eu) and yittrium oxysulfide (Y/sub 2/O/sub 2/S:Eu), show spectral emission characteristics that are strongly pressure dependent. The intensity of the emission lines and fluorescence decay time if individual emission lines show pressure dependence in the range of several kbar to greater than 100 kbar. These properties suggest that these phosphors could be applied as remotely operated pressure transducers. In addition phosphors show temperature dependence. This paper discusses the potential of inorganic phosphors to measure high pressure and also examines temperature effects. 5 refs., 7 figs

• Research Organization: EG and G Energy Measurements, Inc., Goleta, CA (USA). Santa Barbara Operations
• DOE Contract Number: AC08-83NV10282
• OSTI ID: 6910586
• Report Number(s): EGG-10282-2180; CONF-8710353-1; ON: DE88014977
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
440300 -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
ALLOYS
EMISSION SPECTRA
EUROPIUM ADDITIONS
EUROPIUM ALLOYS
INORGANIC PHOSPHORS
LANTHANUM COMPOUNDS
MEASURING INSTRUMENTS
OXYGEN COMPOUNDS
OXYSULFIDES
PHOSPHORS
PRESSURE DEPENDENCE
PRESSURE GAGES
PROPELLANTS
RARE EARTH ADDITIONS
RARE EARTH ALLOYS
RARE EARTH COMPOUNDS
SPECTRA
SULFUR COMPOUNDS
TRANSDUCERS
VERY HIGH PRESSURE