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Sub-Microsecond Decay Time Phosphors for Pressure Sensitive Paint Applications.

DE2001777706

Publication Date	2001
Personal Author	Allison, S. W.
Page Count	7
Abstract	The results suggest that garnet phosphors can be engineered to function thermographically over desired temperature ranges by adjusting gallium content. Substituting gadolinium for the yttrium in the host matrix also has an effect but it is not as large. A silicate phosphor showed the greatest temperature dependence though it could not be excited to fluoresce by a blue LED. All the garnet phosphors could be excited with such a blue source. Two phosphors tested showed an increase in intensity with temperature. Other garnet and silicate materials as mentioned above will be tested in the future. In addition, some perovskite phosphors, such as GdAlO(sub 3):Ce, will also be investigated.
Keywords	Decay Phosphors Silicates Gadolinium Gallium Garnets Perovskite Thermography Paints Temperature dependence Yttrium Concentration ratio Material substitution
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Oak Ridge National Lab., TN.; Department of Energy, Washington, DC.
Document Type	Conference Proceedings
NTIS Issue Number	200125
Contract Number	AC05-96OR22464

Sub-Microsecond Decay Time Phosphors for Pressure Sensitive Paint Applications.

Sub-Microsecond Decay Time Phosphors for Pressure Sensitive Paint Applications.
DE2001777706

Publication Date	2001
Personal Author	Allison, S. W.
Page Count	7
Abstract	The results suggest that garnet phosphors can be engineered to function thermographically over desired temperature ranges by adjusting gallium content. Substituting gadolinium for the yttrium in the host matrix also has an effect but it is not as large. A silicate phosphor showed the greatest temperature dependence though it could not be excited to fluoresce by a blue LED. All the garnet phosphors could be excited with such a blue source. Two phosphors tested showed an increase in intensity with temperature. Other garnet and silicate materials as mentioned above will be tested in the future. In addition, some perovskite phosphors, such as GdAlO(sub 3):Ce, will also be investigated.
Keywords	Decay Phosphors Silicates Gadolinium Gallium Garnets Perovskite Thermography Paints Temperature dependence Yttrium Concentration ratio Material substitution
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Oak Ridge National Lab., TN.; Department of Energy, Washington, DC.
Document Type	Conference Proceedings
NTIS Issue Number	200125
Contract Number	AC05-96OR22464