System for measuring the natural gamma radiation of surface and subsurface formations
US4580048A · kind A · utility
8Cited by
2References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 31, 1983 |
| Grant date | Apr 1, 1986 |
| Priority date | — |
| Expiry date | Aug 31, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V5/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A natural gamma radiation measuring system includes a gamma ray detector and a multichannel analyzer for recording a full gamma-ray energy spectrum. An artificial source of gamma radiation that is temperature insensitive provides a known level of gamma radiation which is utilized by the multichannel analyzer to provide gain stabilization for the full energy spectrum output of the gamma ray detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.