US2761071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fast neutron dosimeter
Assignee: Individual
•
Filing: 1954-05-13
•
Granted: 1956-08-28
•
Expires: 1974-05-13
Abstract
No abstract record available.
Inventors
- 👤 George S Hurst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:19
CPC Classifications
H; H01; H01J; H01J47/00; H01J47/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A FAST NEUTRON DOSIMETER SYSTEM COMPRISING A COUNTER PROVIDED WITH AN OUTER CYLINDRICAL SHELL, A COLLECTOR ELECTRODE DISPOSED AXIALLY WITHIN SAID SHELL, A PAIR OF FIELD TUBES DISPOSED ABOUT OPPOSITE ENDS OF SAID ELECTRODE AND ELECTRICALLY CONNECTED TO SAID SHELL, AN INNER CYLINDRICAL SHELL COAXIAL WITH SAID OUTER SHELL AND ELECTRICALLY CONNECTED THERETO, POLYETHYLENE WALLS CARRIED BY THE INNER SURFACES OF SAID INNER SHELL, ETHYLENE GAS DISPOSED WITHIN SAID WALLS, MEANS FOR ESTABLISHING A POTENTIAL BETWEEN SAID OUTER SHELL AND COLLECTOR ELECTRODE TO OPERATE SAID COUNTER IN THE PROPORTIONAL REGION, A LINEAR AMPLIFIER COUPLED TO SAID ELECTRODE FOR AMPLIFYING PULSES PRODUCED AT SAID ELECTRODE BY INCIDENCE OF FAST NEUTRONS, AND MEANS FOR INTEGRATING THOSE PULSES LARGER THAN A SELECTED AMPLITUDE, THE INTEGRATED PULSE AMPLITUDE BEING PROPORTIONAL TO THE FAST NEUTRON DOSE TO TISSUE.
Claim 2
Dependent Claim
133 words
A FAST NEUTRON DOSIMETER SYSTEM COMPRISING A COUNTER PROVIDED WITH AN OUTER CYLINDRICAL SHELL, A COLLECTOR ELECTRODE DISPOSED AXIALLY WITHIN SAID SHELL, A PAIR OF FIELD TUBES DISPOSED ABOUT OPPOSITE ENDS OF SAID ELECTRODE AND ELECTRICALLY CONNECTED TO SAID SHELL, AN INNER CYLINDRICAL SHELL COAXIAL WITH SAID OUTER SHELL AND ELECTRICALLY CONNECTED THERETO, POLYETHYLENE WALLS CARRIED BY THE INNER SURFACES OF SAID INNER SHELL, ETHYLENE GAS DISPOSED WITHIN SAID WALLS, MEANS FOR ESTABLISHING A POTENTIAL BETWEEN SAID OUTER SHELL AND COLLECTOR ELECTRODE TO OPERATE SAID COUNTER IN THE PROPORTIONAL REGION, A LINEAR AMPLIFIER COUPLED TO SAID ELECTRODE FOR AMPLIFYING PULSES PRODUCED AT SAID ELECTRODE BY INCIDENCE OF FAST NEUTRONS, AND MEANS FOR INTEGRATING THOSE PULSES LARGER THAN A SELECTED AMPLITUDE, THE INTEGRATED PULSE AMPLITUDE BEING PROPORTIONAL TO THE FAST NEUTRON DOSE TO TISSUE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |