Well logging radioactive detector assembly
US5153431A · kind A · utility
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11References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 18, 1992 |
| Grant date | Oct 6, 1992 |
| Priority date | — |
| Expiry date | Feb 18, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V5/125
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A radioactive energy detector for well logging utilizes a Dewar flask. The Dewar flask has an inner housing containing a gamma ray detector. An outer housing surrounds the inner housing, with the annular clearance being evacuated. A window section is integrally formed in the side wall of the outer housing. The window section has a wall thickness that is less than the wall thickness of the side wall of the outer housing. The outer housing is constructed of a material of relatively low atomic number.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.