Nuclear pulse counting apparatus and technique
US4228512A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 1978 |
| Grant date | Oct 14, 1980 |
| Priority date | — |
| Expiry date | May 3, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2223/076
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A nuclear pulse counting experiment, such as typified by the art of X-ray fluorescence empolys a multichannel analog to digital converter (ADC) which is interfaced with a microprocessor to yield sample/matrix concentration data, as an illustrative example, with a precision which is given by the theoretical nuclear decay statistical limits. In specific regard to X-ray fluorescence analysis, the ADC characterizes each pulse or count according to magnitude without conventional backscatter peak gain stabilization. The data is transferred through a buffer to the microprocessor, which scans the higher energy characterizations for maximum count, identifies that characterization as the peak, .+-. 1 characterization, and interpolates to develop a refined backscatter peak, stated to at least 1/10 of a characterization, and from which data base all ensuing calculations are predicated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.