Patent US3291992A successfully refreshed from Google Patents.
US3291992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pair of semiconductor radiation detectors having different atomic numbers and sensitive regions of different thickness
Assignee: Associated Electrical Industries Ltd
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Filing: 1964-04-24
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Granted: 1966-12-13
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Expires: 1984-04-24
Abstract
No abstract record available.
Inventors
- 👤 Wakefield James
- 👤 Waters Derek George
- 👤 Pope Rex Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:02
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/16; G01T1/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
RADIATION DETECTION APPARATUS COMPRISING A PAIR OF SOLID STATE RADIATION DETECTORS OF SEMI-CONDUCTORS HAVING DIFFERENT ATOMIC NUMBERS AND WITH SENSITIVE REGIONS OF DIFFERENT THICKNESS SUCH THAT SUBSTANTIALLY EQUAL COMPTON EFFECTS ARE PRODUCED IN THE ELECTRICAL OUTPUTS OF SAID DETECTORS, EACH DETECTOR OUTPUT FEEDING A SEPARATE CHANNEL, EACH CHANNEL INCLUDING A SEPARATE AMPLIFIER, AT LEAST ONE OF THE AMPLIFIERS HAVING MEANS FOR ADJUSTING THE GAIN THEREOF, MEANS FOR SUBTRACTING THE ELECTRICAL OUTPUTS OF SAID DETECTORS TO ELIMINATE COMPTON EFFECTS AND INDICATING MEANS RESPONSIVE TO THE RESULTANT DIFFERENCES BETWEEN SAID OUTPUTS.
Claim 2
Dependent Claim
89 words
RADIATION DETECTION APPARATUS COMPRISING A PAIR OF SOLID STATE RADIATION DETECTORS OF SEMI-CONDUCTORS HAVING DIFFERENT ATOMIC NUMBERS AND WITH SENSITIVE REGIONS OF DIFFERENT THICKNESS SUCH THAT SUBSTANTIALLY EQUAL COMPTON EFFECTS ARE PRODUCED IN THE ELECTRICAL OUTPUTS OF SAID DETECTORS, EACH DETECTOR OUTPUT FEEDING A SEPARATE CHANNEL, EACH CHANNEL INCLUDING A SEPARATE AMPLIFIER, AT LEAST ONE OF THE AMPLIFIERS HAVING MEANS FOR ADJUSTING THE GAIN THEREOF, MEANS FOR SUBTRACTING THE ELECTRICAL OUTPUTS OF SAID DETECTORS TO ELIMINATE COMPTON EFFECTS AND INDICATING MEANS RESPONSIVE TO THE RESULTANT DIFFERENCES BETWEEN SAID OUTPUTS.
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) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |