Patent US4384905A successfully refreshed from Google Patents.
US7368719B2
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Scintillating materials, articles employing the same, and methods for their use
Assignee: General Electric Co
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Filing: 2006-06-28
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Granted: 2008-05-06
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Expires: 2026-06-28
Abstract
Abstract Disclosed herein are scintillating materials, methods for their manufacture, and method for their use. In one embodiment, a scintillator comprises the formula A 2 LnBX 6 , wherein A comprises thallium (Tl), a Group IA element, and combinations comprising at least one of the foregoing, Ln comprises cerium, B comprises a Group IA element, and X comprises iodine (I) or an iodine compound, wherein the iodine compound comprises iodine (I) and an element selected from the group consisting of fluoride (F), chloride (Cl), bromide (Br), and combinations comprising at least one of the foregoing. Also disclosed are radiation detectors and methods for their use.
Inventors
- 👤 Alok Mani Srivastava
- 👤 Steven Jude Duclos
- 👤 Holly Ann Comanzo
- 👤 Sergio Paulo Martins Loureiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:40
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/16; G01T1/20; G01T1/202; G01T1/2023; C; C09; C09K; C09K11/00; C09K11/08; C09K11/77; C09K11/7715; C09K11/7719; C09K11/772
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
75 words
A scintillator, comprising: a composition having a formula A 2 LnBX 6 , wherein; A comprises thallium (Tl), a Group IA element, and combinations comprising at least one of the foregoing; Ln comprises cerium (Ce) at a level greater than 0.2; B comprises a Group IA element; and, X comprises a halide compound, wherein the halide compound comprises two or more from the group consisting of iodine (I), fluoride (F), chloride (Cl), and bromide (Br).
Claim 2
Dependent Claim
75 words
A scintillator, comprising: a composition having a formula A 2 LnBX 6 , wherein; A comprises thallium (Tl), a Group IA element, and combinations comprising at least one of the foregoing; Ln comprises cerium (Ce) at a level greater than 0.2; B comprises a Group IA element; and, X comprises a halide compound, wherein the halide compound comprises two or more from the group consisting of iodine (I), fluoride (F), chloride (Cl), and bromide (Br).
Claim 3
Dependent Claim
74 words
The scintillator of claim 1 , wherein A is selected from the group consisting of Cs, K, and combinations comprising at least one of the foregoing; Ln further comprises a second element selected from the group consisting of La, Gd, Lu, Bi, Y, and combinations comprising at least one of the foregoing second elements; and, B is selected from the group consisting of Li, Na, and combinations comprising at least one of the foregoing.
Claim 4
Dependent Claim
19 words
The scintillator of claim 1 , wherein A comprises Cs, B comprises Na, and X comprises Br and I.
Claim 5
Dependent Claim
14 words
The scintillator of claim 3 , wherein X is Br 4 I 2 .
Claim 6
Dependent Claim
14 words
The scintillator of claim 3 , wherein X is Br 3 I 3 .
Claim 7
Dependent Claim
19 words
The scintillator of claim 1 , wherein A comprises Cs, B comprises Na, and X comprises Cl and I.
Claim 8
Dependent Claim
12 words
The scintillator of claim 6 , wherein X is Cl 5 I.
Claim 9
Dependent Claim
14 words
The scintillator of claim 6 , wherein X is Cl 3 I 3 .
Claim 10
Dependent Claim
35 words
The scintillator of claim 1 , wherein Ln further comprises a second element selected from the group consisting of La, Y, Gd, Lu, Pr, Ce, Bi, and combinations comprising at least one of the foregoing.
Claim 11
Dependent Claim
12 words
The scintillator of claim 1 , further comprising a tetragonal crystalline structure.
Claim 12
Dependent Claim
16 words
The scintillator of claim 1 , wherein A comprises a different Group IA element than B.
Claim 13
Dependent Claim
91 words
A scintillator, comprising: a composition having a formula A 2 LnBX 6 , wherein; A comprises Tl, a Group IA element, and combinations comprising at least one of the foregoing; Ln is Ce at a level greater than 0.2; B comprises a Group IA element, and combinations comprising at least one of the foregoing, and wherein the B is different than the A; and, X comprises a halide compound, wherein the halide compound comprises two or more from the group consisting of iodine (I), fluoride (F) chloride (Cl), and bromide (Br).
Claim 14
Dependent Claim
91 words
A scintillator, comprising: a composition having a formula A 2 LnBX 6 , wherein; A comprises Tl, a Group IA element, and combinations comprising at least one of the foregoing; Ln is Ce at a level greater than 0.2; B comprises a Group IA element, and combinations comprising at least one of the foregoing, and wherein the B is different than the A; and, X comprises a halide compound, wherein the halide compound comprises two or more from the group consisting of iodine (I), fluoride (F) chloride (Cl), and bromide (Br).
Claim 15
Dependent Claim
102 words
A radiation detector comprising: a crystal scintillator having a formula of A 2 LnBX 6 , wherein; A comprises thallium (Tl), a Group IA element, and combinations comprising at least one of the foregoing; Ln comprises cerium at a level greater than 0.2; B comprises a Group IA element; X comprises a halide compound, wherein the halide compound comprises two or more from the group consisting of iodine (I), fluoride (F), chloride (Cl), and bromide (Br); and, a photodetector connected in operational communication to the crystal scintillator, wherein the photodetector is capable of producing an electrical signal upon scintillation of the scintillator.
Claim 16
Dependent Claim
102 words
A radiation detector comprising: a crystal scintillator having a formula of A 2 LnBX 6 , wherein; A comprises thallium (Tl), a Group IA element, and combinations comprising at least one of the foregoing; Ln comprises cerium at a level greater than 0.2; B comprises a Group IA element; X comprises a halide compound, wherein the halide compound comprises two or more from the group consisting of iodine (I), fluoride (F), chloride (Cl), and bromide (Br); and, a photodetector connected in operational communication to the crystal scintillator, wherein the photodetector is capable of producing an electrical signal upon scintillation of the scintillator.
Claim 17
Dependent Claim
35 words
The radiation detector of claim 13 , wherein the photodetector is at least one device selected from the group consisting of a photomultiplier tube, a photodiode, a charge coupled device sensor, and an image intensifier.
Claim 18
Dependent Claim
17 words
The radiation detector of claim 13 , wherein the photodetector is operably connected to a well-logging tool.
Claim 19
Dependent Claim
20 words
The radiation detector of claim 13 , wherein the photodetector is operably connected to a positron emission tomography (PET) device.
Claim 20
Dependent Claim
19 words
The radiation detector of claim 13 , wherein the photodetector is operably connected to a computed tomography (CT) device.
Claim 21
Dependent Claim
18 words
The radiation detector of claim 13 , wherein the photodetector is operably connected to a digital imaging device.
Claim 22
Dependent Claim
17 words
The radiation detector of claim 13 , wherein the photodetector is operably connected to a screen scintillator.
Claim 23
Independent Claim
117 words
A method for detecting radiation with a radiation detector, comprising: disposing a scintillator crystal having a structure formula of A 2 LnBX 6 to a radiation source causing the scintillator crystal to emit photons, wherein; A comprises thallium (Tl), a Group IA element, and combinations comprising at least one of the foregoing; Ln comprises cerium at a level greater than 0.2; B comprises a Group IA element; X comprises a halide compound, wherein the ie-dThe halide compound comprises two or more from the group consisting of iodine (I), fluoride (F), chloride (Cl), and bromide (Br); detecting photons with a photon detector, wherein the photon detector produces an electrical current; and, producing information based on the electrical current.
Claim 24
Independent Claim
117 words
A method for detecting radiation with a radiation detector, comprising: disposing a scintillator crystal having a structure formula of A 2 LnBX 6 to a radiation source causing the scintillator crystal to emit photons, wherein; A comprises thallium (Tl), a Group IA element, and combinations comprising at least one of the foregoing; Ln comprises cerium at a level greater than 0.2; B comprises a Group IA element; X comprises a halide compound, wherein the ie-dThe halide compound comprises two or more from the group consisting of iodine (I), fluoride (F), chloride (Cl), and bromide (Br); detecting photons with a photon detector, wherein the photon detector produces an electrical current; and, producing information based on the electrical current.
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