US3554920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Energy independent radiophotoluminescence dosimeter with good fading stability
Assignee: United States Atomic Energy Commission
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Filing: 1968-04-19
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Granted: 1971-01-12
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Expires: 1988-04-19
Abstract
Abstract A DOSIMETER HAVING AN ESSENTIALLY ENERGY INDEPENDENT RESPONSE WITHOUT THE USE OF FILTERS AND BEING SUBSTANTIALLY STABLE AGAINST FADING IS PROVIDED BY A LITHIUM BORATE GLASS CONTAINING LI, B, AND AG. THIS GLASS MAY BE PREPARED, FOR EXAMPLE, BY MELTING A MIXTURE OF LINO3, B2O3, AND AGPO3 IN VARIOUS PROPORTIONS. THE GLASS ALSO PERMITS SENSITIVE MEASUREMENTS AT HIGH TEMPERATURES, THE MEASUREMENT OF A THERMAL NEUTRON COMPONENT IN MIXED (N, Y) RADIATION FIELDS, AND SENSITIVE MEASUREMENTS AT HIGH DOSE LEVELS SUCH AS OCCUR IN STERILIZATION AND FOOD PROCESSING SYSTEMS.
Inventors
- 👤 Klaus H Becker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:04
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/02; G01T1/10; C; C03; C03C; C03C3/00; C03C3/12; C03C3/14; C03C4/00; C03C4/0078
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |