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US3951847A
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Scintillator composition
Assignee: Individual
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Filing: 1974-06-26
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Granted: 1976-04-20
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Expires: 1994-06-26
Abstract
Abstract A new scintillator composition, consisting essentially of di-m-methylphenyl-1,3,4-oxadiazole, or 2,5-di-m-tolyl-1,3,4-oxadiazole, is prepared by reacting m-toluoyl chloride with hydrazine to form di-m-toluoyl hydrazine which, in turn, is reacted with thionyl chloride to form the desired product which is dissolved in an organic solvent. The scintillator, di-m-methylphenyloxadiazole compares favorably with present commercial products, being equal to or better than diphenyloxazole in most important respects and significantly superior in scintillation pulse height and in stability. It can be produced at a fraction of the cost of today's most widely used product.
Inventors
- 👤 Mark Hyman, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:22
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/06; G; G01; G01T; G01T1/00; G01T1/16; G01T1/20; G01T1/203; G01T1/204; G01T1/2042
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
25 words
As a scintillator, a composition consisting essentially of 2,5-di-m-tolyl-1,3,4-oxadiazole in an organic solvent, adapted to emit measurable radiative pulses when exposed to high energy radiation.
Claim 2
Dependent Claim
25 words
As a scintillator, a composition consisting essentially of 2,5-di-m-tolyl-1,3,4-oxadiazole in an organic solvent, adapted to emit measurable radiative pulses when exposed to high energy radiation.
Claim 3
Dependent Claim
24 words
A scintillator composition comprising 2,5-di-m-tolyl-1,3,4 oxadiazole in solution in an aromatic hydrocarbon adapted, when exposed to high energy radiation, to emit measurable radiation pulses.
Claim 4
Dependent Claim
24 words
A scintillator composition comprising 2,5-di-m-tolyl-1,3,4 oxadiazole in solution in an aromatic hydrocarbon adapted, when exposed to high energy radiation, to emit measurable radiation pulses.
Claim 5
Dependent Claim
11 words
The composition of claim 2, wherein the aromatic hydrocarbon is toluene.
Claim 6
Dependent Claim
16 words
A scintillator composition according to claim 2, wherein the aromatic hydrocarbon is a polymerized aromatic hydrocarbon.
References Cited (Backward Citations)
GB896219A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-04-20 | 1979-10-20 | 1980-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-20 | 1983-10-20 | 1984-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-20 | 1987-10-20 | 1988-04-20 | $7700.00 | Window Closed / Lapsed |