Method and system for amplitude digitization of nuclear radiation pulses
US9182500B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2012 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Jul 8, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/17
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Disclosed are methods and systems for amplitude digitization of nuclear radiation pulses. The method includes: applying a constant fraction discrimination (CFD) timing process on a subject current signal and outputting a CFD timing signal; applying a shaping process on the subject current signal to obtain a subject shaped signal; comparing, from a time To, values taken at the same time by the subject shaped signal and a dynamic threshold signal, and taking a time Tot as an over-threshold time if the value of the dynamic threshold signal changes from less than the value of the subject shaped signal to not less than the value of the subject shaped signal at the time Tot, wherein a time length between the time To and the arrival time Td of the subject current signal is preset as ΔT; converting a time length between the time Td and the time Tot into a digital quantity as a digitized value of the amplitude of the nuclear radiation pulse; wherein for any two subject shaped signals having amplitudes Vot1 and Vot2, respectively, the dynamic threshold signal satisfies an equationTot1 represents an over-threshold time for one of the subject shaped signals compared with the dynamic threshold …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.