US4263098A
Expired / Lapsed
US
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Radiation measuring process for determining the concentration of fat in meats
Assignee: Forschungszentrum Jülich
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Filing: 1979-09-25
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Granted: 1981-04-21
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Expires: 1999-09-25
Abstract
Abstract A method of determining the concentration of a substance containing a component capable of induced γ radiation upon irradiation in a neutron flux, especially for the determination of the concentration of fats in meat, in which the body is subjected to the neutron flux, especially from a Cf-252 source, and the induced γ radiation is discriminated and analyzed, especially for the γ radiation at 1.26 MeV, 2.23 MeV and/or 5.3 MeV.
Inventors
- 👤 Karl Kasperek
- 👤 Peter Glozbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:55
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/02; G01N33/12; G01N23/00; G01N23/22; G01N23/221; G01N23/222; G01N2223/00; G01N2223/07; G01N2223/074; G01N2223/0745; G01N2223/30; G01N2223/302
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
85 words
A method of determining the fat concentration in a mass of meat, said method comprising the steps of: subjecting said mass of meat to a neutron flux sufficient to induce (n,γ) reactions in the mass of meat and prompt γ emission therefrom; measuring the induced prompt γ radiation emitted for at least one selected γ energy; and comparing the measured values at said selected γ energy with a standard representing concentration of fat in said mass of meat, thereby obtaining a measurement of said concentration.
Claim 2
Independent Claim
85 words
A method of determining the fat concentration in a mass of meat, said method comprising the steps of: subjecting said mass of meat to a neutron flux sufficient to induce (n,γ) reactions in the mass of meat and prompt γ emission therefrom; measuring the induced prompt γ radiation emitted for at least one selected γ energy; and comparing the measured values at said selected γ energy with a standard representing concentration of fat in said mass of meat, thereby obtaining a measurement of said concentration.
Claim 3
Dependent Claim
44 words
The method defined in claim 1 wherein the γ radiation which is measured is γ radiation with a characteristic energy of 1.26 MeV, when determining fat in meat containing negligible quantities of carbohydrates, nucleic acids and trace elements with a substantially constant water content.
Claim 4
Dependent Claim
19 words
The method defined in claim 2, further comprising measuring the discriminated γ radiation at 2.23 MeV and 5.3 MeV.
Claim 5
Dependent Claim
16 words
The method defined in claim 3 wherein the neutron flux derives from a Cf-252 neutron source.
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) | 1984-04-20 | 1984-10-20 | 1985-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-20 | 1988-10-20 | 1989-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-20 | 1992-10-20 | 1993-04-21 | $7700.00 | Window Closed / Lapsed |