US8242452B1
Active / In Force
US
⏱️ 2.4 years remaining
Cesium and sodium-containing scintillator compositions
Assignee: Radiation Monitoring Devices Inc
•
Filing: 2009-03-16
•
Granted: 2012-08-14
•
Expires: 2029-03-16
Abstract
Abstract The present invention relates to scintillator compositions and related devices and methods. The scintillator may include, for example, a mixed halide scintillator composition including at least two different CsNaLa halide compounds and a dopant. Related radiation detection devices and methods are further included.
Inventors
- 👤 Kanai S. Shah
- 👤 William M. Higgins
- 👤 Edgar V. Van Loef
- 👤 Jaroslaw Glodo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:29
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/08; C09K11/77; C09K11/7704; C09K11/7705; C09K11/7766; C09K11/7772; C09K11/7773; G; G21; G21K; G21K4/00; C30; C30B; C30B29/00; C30B29/10; C30B29/12
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
16 words
A mixed halide scintillator composition, comprising at least two different CsNaLa halide compounds and a dopant.
Claim 2
Dependent Claim
16 words
A mixed halide scintillator composition, comprising at least two different CsNaLa halide compounds and a dopant.
Claim 3
Dependent Claim
36 words
The scintillator of claim 1 , wherein the different CsNaLa halide compounds are selected from Cs 2 NaLaF 6 , Cs 2 NaLaBr 6 , Cs 2 NaLaCl 6 , and Cs 2 NaLaI 6 .
Claim 4
Dependent Claim
11 words
The scintillator of claim 1 , wherein the dopant comprises Ce.
Claim 5
Dependent Claim
19 words
The scintillator of claim 1 , wherein the dopant is present at less than about 20% by molar weight.
Claim 6
Dependent Claim
23 words
The scintillator of claim 1 , wherein the dopant comprises Ce present at equal to or less than about 5% by molar weight.
Claim 7
Dependent Claim
17 words
The scintillator of claim 1 , wherein the scintillator comprises a crystalline, ceramic, or polycrystalline ceramic form.
Claim 8
Dependent Claim
29 words
A radiation detection device, a mixed halide scintillator composition, comprising at least two different CsNaLa halide compounds and a dopant; and a photodetector assembly optically coupled to the scintillator.
Claim 9
Dependent Claim
29 words
A radiation detection device, a mixed halide scintillator composition, comprising at least two different CsNaLa halide compounds and a dopant; and a photodetector assembly optically coupled to the scintillator.
Claim 10
Dependent Claim
25 words
The device of claim 7 , wherein the photodetector assembly comprises a photomultiplier tube, a photodiode, a PIN detector, charge-coupled device, or an avalanche detector.
Claim 11
Dependent Claim
11 words
The device of claim 7 , further comprising a radiation source.
Claim 12
Dependent Claim
28 words
The device of claim 7 , further comprising a computer system coupled to the photodetector assembly so that the computer outputs image data in response to detected radiation.
Claim 13
Dependent Claim
18 words
The device of claim 10 , wherein the computer comprises instructions for constructing an image from detected radiation.
Claim 14
Dependent Claim
19 words
The device of claim 7 , wherein the device is configured to detect x-rays, gamma-rays, or a combination thereof.
Claim 15
Independent Claim
64 words
A method of performing radiation detection, comprising: providing a detection device comprising a mixed halide scintillator composition, comprising at least two different CsNaLa halide compounds and a dopant; and a photodetector assembly optically coupled to the scintillator; and positioning the device such that a radiation source is within a field of view of the scintillator composition so as to detect emissions from the source.
Claim 16
Independent Claim
64 words
A method of performing radiation detection, comprising: providing a detection device comprising a mixed halide scintillator composition, comprising at least two different CsNaLa halide compounds and a dopant; and a photodetector assembly optically coupled to the scintillator; and positioning the device such that a radiation source is within a field of view of the scintillator composition so as to detect emissions from the source.
Claim 17
Dependent Claim
14 words
The method of claim 13 , wherein the emissions comprise gamma-ray or X-ray emissions.
Claim 18
Dependent Claim
19 words
The method of claim 13 , wherein a patient is positioned between the radiation source and the scintillator composition.
Claim 19
Dependent Claim
13 words
The method of claim 13 , wherein the radiation source comprises a patient.
References Cited (Backward Citations)
US5367176A
Cited
US20020175291A1
Cited
US6585913B2
Cited
WO2005068585A1
Cited
US20070187608A1
Cited
US20070131874A1
Cited
US20070131866A1
Cited
US20080001086A1
Cited
US20080131347A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2015-08-14 | 2016-02-13 | 2016-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2019-08-14 | 2020-02-13 | 2020-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2023-08-14 | 2024-02-13 | 2024-08-14 | $7700.00 | Window Closed / Lapsed |