Ceramic scintillator based on cubic garnet compositions for positron emission tomography (PET)

US11326099B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11326099-B2
Application numberUS-201916668299-A
CountryUS
Kind codeB2
Filing dateOct 30, 2019
Priority dateOct 30, 2019
Publication dateMay 10, 2022
Grant dateMay 10, 2022

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  1. Title

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  2. Abstract

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  4. Key dates

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  5. First independent claim

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Abstract

Official abstract text for this publication.

A scintillator for positron emission tomography is provided. The scintillator includes a garnet compound of a formula of A3B2C3O12 and an activator ion consisting of cerium. A3 is A2X. X consists of at least one lanthanide element. A2 is selected from the group consisting of (i), (ii), (iii), and any combination thereof, wherein (i) consists of at least one lanthanide element, (ii) consists of at least one group I element selected from the group consisting of Na and K, and (iii) consists of at least one group II element selected from the group consisting of Ca, Sr, and Ba. B2 consists of Sn, Ti, Hf, Zr, and any combination thereof. C3 consists of Al, Ga, Li, and any combination thereof. The garnet compound is doped with the activator ion.

First claim

Opening claim text (preview).

What is claimed is: 1. A compound comprising: a garnet compound of a formula of A 3 B 2 C 3 O 12 , wherein A 3 consists of Lu, wherein B 2 consists of Sn, Ti, Hf, Zr, and any combination thereof, and wherein C 3 consists of Al, Ga, Li, and any combination thereof; and an activator ion consisting of cerium, wherein the garnet compound is doped with said activator ion, wherein said garnet compound has a formula of Lu 3 B 2 C 3 O 12 . 2. The compound in accordance with claim 1 , wherein said garnet compound has a formula of Lu 3 Hf 2 LiA 2 O 12 . 3. The compound in accordance with claim 1 , wherein said garnet compound is doped with approximately 0.5 mol. % to approximately 10 mol. % of cerium. 4. The compound in accordance with claim 3 , wherein said garnet compound is doped with approximately 2 mol. % to approximately 3 mol. % of cerium. 5. A compound comprising: a garnet compound of a formula of A 3 B 2 C 3 O 12 , wherein B 2 consists of Sn, Ti, Hf, Zr, and any combination thereof, and wherein C 3 consists of Al, Ga, Li, and any combination thereof; and an activator ion consisting of cerium, wherein the garnet compound is doped with said activator ion, wherein A 3 is ALu 2 , wherein said garnet compound has a formula of ALu 2 B 2 C 3 O 12 , and wherein A consists of Na and K. 6. The compound in accordance with claim 5 , wherein said garnet compound has a formula of NaLu 2 Hf 2 Al 3 O 12 . 7. The compound in accordance with claim 5 , wherein said garnet compound is doped with approximately 0.5 mol. % to approximately 10 mol. % of cerium. 8. The compound in accordance with claim 7 , wherein said garnet compound is doped with approximately 2 mol. % to approximately 3 mol. % of cerium.

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Classifications

  • Strontium oxides or oxide-forming salts thereof · CPC title

  • Calcium oxide or oxide-forming salts thereof, e.g. lime · CPC title

  • Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide · CPC title

  • Tetrazo dyes · CPC title

  • Lithium oxide or oxide-forming salts thereof · CPC title

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What does patent US11326099B2 cover?
A scintillator for positron emission tomography is provided. The scintillator includes a garnet compound of a formula of A3B2C3O12 and an activator ion consisting of cerium. A3 is A2X. X consists of at least one lanthanide element. A2 is selected from the group consisting of (i), (ii), (iii), and any combination thereof, wherein (i) consists of at least one lanthanide element, (ii) consists of …
Who is the assignee on this patent?
Ge Prec Healthcare Llc
What technology area does this patent fall under?
Primary CPC classification C09K11/7774. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue May 10 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).