Radiant energy – Invisible radiant energy responsive electric signalling – Neutron responsive means
Patent
1984-10-31
1987-02-24
Howell, Janice A.
Radiant energy
Invisible radiant energy responsive electric signalling
Neutron responsive means
250391, 250255, G01N 2309, G01N 2310
Patent
active
046459359
ABSTRACT:
The thermal neutron absorption cross-section of a sample is measured by placing the sample in a sample container which surrounds a cavity within which a neutron source is positioned. A detector is positioned along a line parallel to an axis passing through the cavity. The source and detector are immersed in a moderator within a tank.
REFERENCES:
Enrico Fermi and Leo Szilard, "Method for Testing Materials", published abstract of Patent Application Ser. No. 534,681, Official Gazette, vol. 667 (Feb. 1953), p. 762.
"Measurement of the Thermal Neutron Absorption Cross Section of Rock Samples by a Pulsed Source Method", by L. S. Allen and W. R. Mills, Jr.--15th Annual SPWLA Symposium Proceedings Paper, Jun. 2-5, 1974, pp. 289-295.
"Measuring the Thermal Neutron Absorption Cross Sections of Rocks", by C. W. Tittle and G. W. Crawford, The Log Analyst, May-Jun. 1983, pp. 12-15.
"Measuring the Neutron Cross Section of Rocks", by C. W. Tittle and G. W. Crawford--SPWLA 25th Annual Logging Symposium, Jun. 10-13, 1984.
"A System for Wellsite Measurement of Fluid", by J. W. Hall, J. Tittman, and H. N. Edmundson, SPWLA 21st Annual Logging Symposium, Jul. 8-11, 1980, pp. 1-8.
"Measuring Thermal Neutron Absorption Cross Sections of Formation Brines", by C. E. Rinehart and H. J. Weber--16th Annual SPWLA Logging Symposium, Jun. 1975, pp. 297-310.
"Measurement of the Thermal Neutron Absorption Cross Section of Rock Samples", by J. A. Czubek, K. Drozdowicz, E. Krynick-a-Drozdowicz, A. Igielski and U. Woznicka, Int. J. Appl. Radiat. Isot., vol. 34, pp. 143-151 (1983).
"A Simple and Rapid Method of Determining the Thermal Neutron Absorption Cross Section of Rocks", by A. Dydejczyk, J. Gyurcsak and A. Kreft, Proceedings of the IAEA Consultants' Meeting on Nuclear Data for Bore-Hole and Bulk-Media Assay Using Nuclear Techniques, Krakow, Poland (Nov. 1983), pp. 313-317.
Chevron Research Company
Hannaher Constantine
Howell Janice A.
Keeling E. J.
LaPaglia S. R.
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