Published August 11, 1981
| Version v1
Patent
Epithermal neutron decay logging
Creators
Description
Method and apparatus for epithermal neutron decay logging wherein the formation under investigation is irradiated with bursts of fast neutrons which are moderated therein to form a population of epithermal neutrons. The decay rate of epithermal neutrons within the formation is measured within an energy range having lower limit which is less than the chemical binding energy of bound hydrogen in the formation. In addition, the decay rate of epithermal neutrons within the formation is measured within a second energy range having a lower limit which is greater than the lower limit of the first energy range
Availability note (English)
U.S. Commissioner of Patents, Washington, D.C. 20231, USA, $.50.Additional details
Additional titles
- Augmented title (English)
- Patent
Publishing Information
- Imprint Pagination
- v p.
- IPC:
- Int. Cl.G01V 5/00.
- IPC
- Int. Cl.G01V 5/00.
- Patent number
- US patent document 4,283,624/A/
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 13653838
- Subject category
- S07: ISOTOPES AND RADIATION SOURCES;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- BINDING ENERGY; ENERGY RANGE; EPITHERMAL NEUTRONS; FAST NEUTRONS; NEUTRON LOGGING; RADIATION DETECTORS
- Descriptors DEC
- BARYONS; ELEMENTARY PARTICLES; ENERGY; FERMIONS; HADRONS; MEASURING INSTRUMENTS; NEUTRONS; NUCLEONS; RADIOACTIVITY LOGGING; WELL LOGGING
Optional Information
- Notes
- PAT-APPL-051566.