Patent US3239667A successfully refreshed from Google Patents.
US3239667A
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Method for determining the neutron flux above the u-238 threshold energy level
Assignee: Individual
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Filing: 1963-03-28
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Granted: 1966-03-08
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Expires: 1983-03-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Edmond Roberts
- 👤 John W Wachter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:06
CPC Classifications
G; G01; G01T; G01T3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A METHOD FOR DETEMINING THE NEUTRON FLUX ABOVE THE U-238 THRESHOLD ENERGY LEVEL FROM A NUCLEAR RADIATION SOURCE COMPRISING THE STEPS OF EXPOSING TO SAID SOURCE A FIRST, DEPLETED URANIUM FOIL OF U-238 WITH A U-235 CONTENT OF P1 PERCENT, EXPOSING TO SAID SOURCE A SECOND, ENRICHED URANIUM FOIL OF U-238 WITH A U-235 CONTENT OF P2 PERCENT AND DIFFERENT FROM THE U-235 CONTENT OF SAID FIRST FOIL, PRODUCING A FIRST OUTPUT, A CORRESONDING TO THE RADIOACTIVITY INDUCED AT TIME T IN SAID FIRST FOIL, PRODUCING A SECOND OUTPUT, A2, CORRESPONDING TO THE RADIOACTIVITY INDUCED AT TIME T IN SAID SECOND FOIL, AND PRODUCING AN ACCURATE INDICATION OF THE ACTIVITY, A238, OF THE PURE U-238 IN ACCORDANCE WITH THE RELATION:
Claim 2
Independent Claim
120 words
A METHOD FOR DETEMINING THE NEUTRON FLUX ABOVE THE U-238 THRESHOLD ENERGY LEVEL FROM A NUCLEAR RADIATION SOURCE COMPRISING THE STEPS OF EXPOSING TO SAID SOURCE A FIRST, DEPLETED URANIUM FOIL OF U-238 WITH A U-235 CONTENT OF P1 PERCENT, EXPOSING TO SAID SOURCE A SECOND, ENRICHED URANIUM FOIL OF U-238 WITH A U-235 CONTENT OF P2 PERCENT AND DIFFERENT FROM THE U-235 CONTENT OF SAID FIRST FOIL, PRODUCING A FIRST OUTPUT, A CORRESONDING TO THE RADIOACTIVITY INDUCED AT TIME T IN SAID FIRST FOIL, PRODUCING A SECOND OUTPUT, A2, CORRESPONDING TO THE RADIOACTIVITY INDUCED AT TIME T IN SAID SECOND FOIL, AND PRODUCING AN ACCURATE INDICATION OF THE ACTIVITY, A238, OF THE PURE U-238 IN ACCORDANCE WITH THE RELATION:
References Cited (Backward Citations)
US2969307A
Cited
US2863062A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |