US3591807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photon detector utilizing a well-type scintillation crystal
Assignee: CHARLES W MAYS
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Filing: 1966-09-06
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Granted: 1971-07-06
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Expires: 1986-09-06
Abstract
Abstract A novel phonton detector, the preferred embodiment comprising a scintillating crystal having a uniquely oriented counting chamber disposed transversely within the scintillating crystal, the crystal having a plurality of planar faces uniformly spaced from the counting chamber to accommodate a plurality of photomultiplier tubes. The mentioned novel phonton detector has unexpected and surprising capability of achieving uniform counting rate independent of sample position or sample volume and shape.
Inventors
- 👤 Charles W Mays
- 👤 Ray D Lloyd
- 👤 David R Atherton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:21
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/16; G01T1/20
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
123 words
An apparatus for detecting radiation comprising: a cylindrically shaped crystalline scintillator having opposed planar ends; an external shield circumscribing the curved periphery of the cylindrical scintillator; a blind bore radially inwardly disposed in the cylindrical scintillator, the axis of the bore being disposed normal to and intersecting the axis of the cylindrical scintillator essentially midway between the planar ends thereof, the bore opening at the curved periphery of the scintillator and terminating substantially within the scintillator; a protective liner covering the exposed surfaces of the blind bore; and a photo detector mounted juxtaposed each planar end of the cylindrical scintillator so as to be coaxial therewith, the photosensitive face of each photodetector having essentially the same diametral dimension as the respective planar ends.
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) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |