Natural gamma ray spectrum analysis technique
US3976878A · kind A · utility
34Cited by
5References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1974 |
| Grant date | Aug 24, 1976 |
| Priority date | — |
| Expiry date | Sep 27, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V5/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In accordance with an illustrative embodiment of the present invention, a method and apparatus is disclosed for determining the presence of a selected number of naturally radioactive materials in an earth formation from the spectrum of natural gamma radiation emitted by the materials in the formation by deriving representations of portions of the detected gamma radiation spectrum and combining the representations to determine therefrom the presence of the selected materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.