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Title: Transparent ceramic garnet scintillator detector for positron emission tomography

Abstract

In one embodiment, a method includes forming a powder having a composition with the formula: A hB iC jO 12, where h is 3.+-.10%, i is 2.+-.10%, j is 3.+-.10%, A includes one or more rare earth elements, B includes aluminum and/or gallium, and C includes aluminum and/or gallium. The method additionally includes consolidating the powder to form an optically transparent ceramic, and applying at least one thermodynamic process condition during the consolidating to reduce oxygen and/or thermodynamically reversible defects in the ceramic. In another embodiment, a scintillator includes (Gd 3-a-cY a) x(Ga 5-bAl b) yO 12D c, where a is from about 0.05-2, b is from about 1-3, x is from about 2.8-3.2, y is from about 4.8-5.2, c is from about 0.003-0.3, and D is a dopant, and where the scintillator is an optically transparent ceramic scintillator having physical characteristics of being formed from a ceramic powder consolidated in oxidizing atmospheres.

Inventors:
; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1459539
Patent Number(s):
10,000,698
Application Number:
15/064,509
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA) LLNL
DOE Contract Number:
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 2016 Mar 08
Country of Publication:
United States
Language:
English

Citation Formats

Cherepy, Nerine, Payne, Stephen A., Seeley, Zachary, Cohen, Peter Carl, Andreaco, Mark S., and Schmand, Matthias J. Transparent ceramic garnet scintillator detector for positron emission tomography. United States: N. p., 2018. Web.
Cherepy, Nerine, Payne, Stephen A., Seeley, Zachary, Cohen, Peter Carl, Andreaco, Mark S., & Schmand, Matthias J. Transparent ceramic garnet scintillator detector for positron emission tomography. United States.
Cherepy, Nerine, Payne, Stephen A., Seeley, Zachary, Cohen, Peter Carl, Andreaco, Mark S., and Schmand, Matthias J. Tue . "Transparent ceramic garnet scintillator detector for positron emission tomography". United States. doi:. https://www.osti.gov/servlets/purl/1459539.
@article{osti_1459539,
title = {Transparent ceramic garnet scintillator detector for positron emission tomography},
author = {Cherepy, Nerine and Payne, Stephen A. and Seeley, Zachary and Cohen, Peter Carl and Andreaco, Mark S. and Schmand, Matthias J.},
abstractNote = {In one embodiment, a method includes forming a powder having a composition with the formula: AhBiCjO12, where h is 3.+-.10%, i is 2.+-.10%, j is 3.+-.10%, A includes one or more rare earth elements, B includes aluminum and/or gallium, and C includes aluminum and/or gallium. The method additionally includes consolidating the powder to form an optically transparent ceramic, and applying at least one thermodynamic process condition during the consolidating to reduce oxygen and/or thermodynamically reversible defects in the ceramic. In another embodiment, a scintillator includes (Gd3-a-cYa)x(Ga5-bAlb)yO12Dc, where a is from about 0.05-2, b is from about 1-3, x is from about 2.8-3.2, y is from about 4.8-5.2, c is from about 0.003-0.3, and D is a dopant, and where the scintillator is an optically transparent ceramic scintillator having physical characteristics of being formed from a ceramic powder consolidated in oxidizing atmospheres.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 19 00:00:00 EDT 2018},
month = {Tue Jun 19 00:00:00 EDT 2018}
}

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