Method for simultaneous measurement of thermal neutron decay components
US4409481A · kind A · utility
31Cited by
6References
49Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1982 |
| Grant date | Oct 11, 1983 |
| Priority date | — |
| Expiry date | Jun 1, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2223/616
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method is disclosed for simultaneous determination of borehole and formation thermal neutron decay time components. The methods employ pulsed high energy neutron sources and time gated dual spaced detectors. Exponential decay curves are assumed for each of the components and iterative least squares fitting employing rapid convergence techniques are utilized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.