Pulse height analyzer
Abstract
Abstract A PULSE HEIGHT ANALYZER PARTICULARLY FOR USE WITH A COATING THICKNESS GAUGE INCLUDING A THIN WINDOW X-RAY TUBE, A THIN WINDOW PROPORTIONAL DETECTOR, A LINEAR AMPLIFIER CONNECTED TO THE DETECTOR, A PAIR OF DISCRIMINATORS CONNECTED IN PARALLEL TO THE AMPLIFIER, A COUNTING RATE METER CONNECTED TO EACH DISCRIMINATOR AND PROVIDING RATE SIGNALS PROPORTIONAL TO NUMBERS OF VARIOUS LEVEL PULSES DETECTED, AND A DIFFERENTIAL AMPLIFIER CONNECTED TO THE OUTPUTS OF THE RATE METERS AND PROVIDING PULSE RATE INFORMATION FOR A SPECIFIC RADIATION PULSE LEVEL BAND. ALSO, A REVERSE BIASED TUNNEL DIODE DISCRIMINATOR HAVING MEANS TO BLOCK NEGATIVE GOING SIGNALS IN SERIES WITH THE INPUT TO THE CATHODE OF THE TUNNEL DIODE.
Inventors
- 👤 George Dykeman
Bibliographic Details
Claims Analysis
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |