US4262202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scintillator detector array
Assignee: General Electric Co
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Filing: 1979-08-27
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Granted: 1981-04-14
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Expires: 1999-08-27
Abstract
Abstract A scintillator detector array particularly useful in computerized tomography comprises a housing including a plurality of walled cellular chambers, said housing having a front wall member transmissive to x-ray radiation and whose chambers are defined by side wall members comprising materials, such as tungsten and tantalum, which are substantially opaque to x-ray radiation. Within the housing there is disposed a liquid scintillation medium including a soluble fluor and solvent material for the fluor. The solvent may comprise either an intrinsically high Z solvent or may be a solvent which has dissolved therein a high Z compound. Also disposed about the cellular chambers are a plurality of photoelectrically responsive devices. The detector array operates to convert x-ray intensity levels of impinging x-ray radiation to related electrical signal intensity levels.
Inventors
- 👤 Dominic A. Cusano
- 👤 Frank A. Di Bianca
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:21
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/16; G01T1/20; G01T1/204; G01T1/161; G01T1/164; G01T1/1641; G01T1/1644
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
128 words
A scintillator detector array particularly useful in computerized tomography comprising: a housing for holding a liquid scintillation medium, said housing including a plurality of walled cellular chambers, said housing having a front wall structure substantially transmissive to x-ray radiation, said chambers being defined by side wall members which are substantially opaque to x-ray radiation and which are substantially orthogonal to said front wall structure; a liquid scintillation medium including a soluble fluor and a solvent material for said fluor, said solvent material being selected from the group consisting of a solvent having a high Z compound dissolved therein and an intrinsically high Z solvent; and a plurality of photoelectrically responsive devices disposed about said cellular chambers so as to receive optical wavelength photons produced by said scintillation medium.
Claim 2
Dependent Claim
128 words
A scintillator detector array particularly useful in computerized tomography comprising: a housing for holding a liquid scintillation medium, said housing including a plurality of walled cellular chambers, said housing having a front wall structure substantially transmissive to x-ray radiation, said chambers being defined by side wall members which are substantially opaque to x-ray radiation and which are substantially orthogonal to said front wall structure; a liquid scintillation medium including a soluble fluor and a solvent material for said fluor, said solvent material being selected from the group consisting of a solvent having a high Z compound dissolved therein and an intrinsically high Z solvent; and a plurality of photoelectrically responsive devices disposed about said cellular chambers so as to receive optical wavelength photons produced by said scintillation medium.
Claim 3
Dependent Claim
30 words
The scintillation detector array of claim 1 in which said soluble fluor is selected from the group consisting of p-terphenyl, diphenyl oxazole, butyl-phenyl-biphenylyl-oxadiazole, tetramethyl-p-quaterphenyl, isopropyl biphenyl, and bis phenylethynyl anthracene.
Claim 4
Dependent Claim
23 words
The scintillation detector array of claim 1 in which said solvent is selected from the group consisting of toluene, xylene, and trimethyl benzene.
Claim 5
Dependent Claim
25 words
The scintillation detector array of claim 3 in which said high Z compound is selected from the group consisting of lead alkyl and tin alkyl.
Claim 6
Dependent Claim
24 words
The scintillation detector array of claim 1 in which said intrinsically high Z solvent is selected from the group consisting of iodo-naphthalene and bromo-naphthalene.
Claim 7
Dependent Claim
37 words
The scintillation detector array of claim 1 in which said liquid scintillation medium further includes at least one wavelength conversion substance selected from the group consisting of dimethyl POPOP, α-NPO, bis MSB, rhodamine B, perylene, and BPEA.
Claim 8
Dependent Claim
15 words
The scintillation detector array of claim 1 in which said front wall structure comprises plastic.
Claim 9
Dependent Claim
16 words
The scintillation detector array of claim 1 in which said cellular chambers are in fluid communication.
Claim 10
Dependent Claim
24 words
The scintillation detector array of claim 1 in which said side wall members comprise material selected from the group consisting of tungsten and tantalum.
Claim 11
Dependent Claim
19 words
The scintillation detector array of claim 1 in which said interior cellular chamber walls are coated with reflective material.
Claim 12
Dependent Claim
19 words
The scintillation detector array of claim 1 in which said photoelectrically responsive devices are disposed within the cellular chambers.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-04-13 | 1984-10-13 | 1985-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-13 | 1988-10-13 | 1989-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-13 | 1992-10-13 | 1993-04-14 | $7700.00 | Window Closed / Lapsed |