US3176130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Narrow band x-ray detector
Assignee: Laboratory For Electronics Inc
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Filing: 1961-06-09
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Granted: 1965-03-30
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Expires: 1981-06-09
Abstract
No abstract record available.
Inventors
- 👤 Joris M Brinkerhoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:58
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/16; G01T1/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
APPARATUS FOR MEASUREMENT OF A SELECTED ENERGY RANGE OF AN INCIDENT BEAM OF X-RAYS COMPRISING, A RADIATOR ELEMENT; AN X-RAY DETECTOR ADAPTED TO MEASURE SUBSTANTIALLY ONLY RADIATION FROM SAID RADIATOR ELEMENT; A FILTER PLATE INTERPOSED BETWEEN SAID INCIDENT BEAM OF X-RAYS AND SAID RADIATOR ELEMENT, SAID RADIATOR ELEMENT BEING FORMED A FIRST MATERIAL CHARACTERIZED BY HAVING ITS CRITICAL X-RAY ABSORPITON EDGE AT A FIRST ENERGY VALUE EQUAL TO THE LOWER LIMIT OF SAID SELECTED ENERGY RANGE, SAID FILTER PLATE BEING FROMED OF A SECOND MATERIAL CHARACTERIZED BY HAVING ITS CRITICAL X-RAY ABSORPTION EDGE AT AN ENERGY VALUE EQUAL TO THE UPPER LIMIT OF SAID SELECTED ENERGY RANGE, SAID SECOND MATERIAL BEING FURTHER CHARACTERIZED BY HAVING ITS CHARACTERISTIC FLUORESCENCE X-RAY EMISSION ENERGY AT A VALUE THAN THE X-RAY ABSORPTION EDGE OF SAID FIRST MATERIAL.
Claim 2
Dependent Claim
133 words
APPARATUS FOR MEASUREMENT OF A SELECTED ENERGY RANGE OF AN INCIDENT BEAM OF X-RAYS COMPRISING, A RADIATOR ELEMENT; AN X-RAY DETECTOR ADAPTED TO MEASURE SUBSTANTIALLY ONLY RADIATION FROM SAID RADIATOR ELEMENT; A FILTER PLATE INTERPOSED BETWEEN SAID INCIDENT BEAM OF X-RAYS AND SAID RADIATOR ELEMENT, SAID RADIATOR ELEMENT BEING FORMED A FIRST MATERIAL CHARACTERIZED BY HAVING ITS CRITICAL X-RAY ABSORPITON EDGE AT A FIRST ENERGY VALUE EQUAL TO THE LOWER LIMIT OF SAID SELECTED ENERGY RANGE, SAID FILTER PLATE BEING FROMED OF A SECOND MATERIAL CHARACTERIZED BY HAVING ITS CRITICAL X-RAY ABSORPTION EDGE AT AN ENERGY VALUE EQUAL TO THE UPPER LIMIT OF SAID SELECTED ENERGY RANGE, SAID SECOND MATERIAL BEING FURTHER CHARACTERIZED BY HAVING ITS CHARACTERISTIC FLUORESCENCE X-RAY EMISSION ENERGY AT A VALUE THAN THE X-RAY ABSORPTION EDGE OF SAID FIRST MATERIAL.
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) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |