US3673107A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixed field radiation dosimeter materials of amine salts of organic acids
Assignee: United States Department of the Air Force
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Filing: 1969-12-18
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Granted: 1972-06-27
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Expires: 1989-12-18
Abstract
Abstract Amine salts of organic acids are used as dosimeter materials. The salts react with mixed field ionizing radiation to form stable free radicals which may be detected by the technique of electron spin resonance spectroscopy. The salts have hydrogen contents of from about 9 to about 11 weight percent and thus react with ionizing radiation in a manner similar to human tissue which has about 10 weight percent hydrogen. The materials are useful in studying the effect of radiation on tissue.
Inventors
- 👤 Ignatius G Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:34
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/02; G01T1/04; Y; Y10; Y10S; Y10S436/00; Y10S436/902
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
11 words
A dosimeter according to claim 1 wherein the material is bis(tetramethylammonium)malonate.
References Cited (Backward Citations)
US3141898A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |