US4476391A
Expired / Lapsed
US
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Method for improving accuracy in a neutron detector
Assignee: Mobil Oil AS
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Filing: 1982-03-08
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Granted: 1984-10-09
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Expires: 2002-03-08
Abstract
Abstract A method for improving the accuracy of neutron detectors is disclosed wherein a predetermined threshold level, by analysis of a neutron and gamma relative distribution curve, is set and all amplitudes below this predetermined minimum are removed from a neutron detector total count.
Inventors
- 👤 Adam Bednarczyk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:17
CPC Classifications
G; G01; G01T; G01T3/00; G01V; G01V5/00; G01V5/04; G01V5/08; G01V5/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
81 words
A method for improving the accuracy of a neutron detector comprising the steps of: plotting a distribution by amplitude of gamma-ray interaction with said neutron detector by determining a theoretical amplitude of said gamma-ray interaction and providing a statistical distribution display of said theoretical amplitudes; plotting a distribution by amplitude of neutron output of said neutron detector; setting a threshold amplitude level for said neutron output distribution; and attributing all distribution points below said threshold amplitude level to said gamma-ray interaction.
Claim 2
Independent Claim
81 words
A method for improving the accuracy of a neutron detector comprising the steps of: plotting a distribution by amplitude of gamma-ray interaction with said neutron detector by determining a theoretical amplitude of said gamma-ray interaction and providing a statistical distribution display of said theoretical amplitudes; plotting a distribution by amplitude of neutron output of said neutron detector; setting a threshold amplitude level for said neutron output distribution; and attributing all distribution points below said threshold amplitude level to said gamma-ray interaction.
Claim 3
Dependent Claim
28 words
The method according to claim 1 wherein said step of plotting a distribution of gamma-ray interaction includes the step of: measuring actual gamma-ray interaction with said neutron detector.
Claim 4
Dependent Claim
33 words
The method according to claim 2 wherein said measuring step includes the steps of: putting a gamma-ray source next to said neutron detector; and determining amplitudes of the radiation from said gamma-ray source.
References Cited (Backward Citations)
US4002904A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-09 | 1988-04-09 | 1988-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-09 | 1992-04-09 | 1992-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-09 | 1996-04-09 | 1996-10-09 | $7700.00 | Window Closed / Lapsed |