US4103165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Neutron responsive self-powered radiation detector
Assignee: United States Department of Energy
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Filing: 1977-03-23
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Granted: 1978-07-25
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Expires: 1997-03-23
Abstract
Abstract An improved neutron responsive self-powered radiation detector is disclosed in which the neutron absorptive central emitter has a substantially neutron transmissive conductor collector sheath spaced about the emitter and the space between the emitter and collector sheath is evacuated.
Inventors
- 👤 Donald P. Brown
- 👤 Collins P. Cannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:56
CPC Classifications
G; G01; G01T; G01T3/00; G01T3/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A neutron responsive self-powered radiation detector comprising a neutron absorptive, low density, conductive emitter of beryllium, and a substantially neutron transmissive conductive collector sheath of ferro-alloy spaced from and disposed about the emitter, with the space between the emitter and the collector sheath being evacuated.
Claim 2
Dependent Claim
45 words
A neutron responsive self-powered radiation detector comprising a neutron absorptive, low density, conductive emitter of beryllium, and a substantially neutron transmissive conductive collector sheath of ferro-alloy spaced from and disposed about the emitter, with the space between the emitter and the collector sheath being evacuated.
References Cited (Backward Citations)
US3137792A
Cited
US4008399A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-24 | 1982-01-23 | 1982-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-24 | 1986-01-23 | 1986-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-24 | 1990-01-23 | 1990-07-25 | $7700.00 | Window Closed / Lapsed |