Applicability of GSO scintillators for well logging

Journal Article · Mon Apr 01 04:00:00 EST 1991 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/23.289349· OSTI ID:5038735

Melcher, C L; Schweitzer, J S; Manete, R A; Peterson, C A ^[1]

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1. Schlumberger-Doll Research Center, Ridgefield, CT (United States)

Cerium-doped gadolinium oxyorthosilicate (GSO:Ce) was developed as a scintillating material for application in positron emission tomography. In this paper, the authors analyze the fundamental properties of this material, with particular attention to properties relevant to nuclear well logging applications and their temperature dependence. Initial evaluations indicated that this material had a number of properties which seemed to make it a favorable candidate for well logging applications, such as the reported decay time constant of 60 ns. Subsequent studies showed the presence of a longer, 600 ns, decay constant, which coupled with its extremely high thermal neutron absorption cross section and relatively low light output, raised questions about its suitability. The authors study the temperature dependence of GSO:Ce to better evaluate its applicability as a gamma-ray detector for nuclear well logging applications.

• OSTI ID: 5038735
• Journal Information: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States) Vol. 38:2; ISSN 0018-9499; ISSN IETNA
• Country of Publication: United States
• Language: English

Related Subjects

440100 -- Radiation Instrumentation
440400* -- Well Logging Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
47 OTHER INSTRUMENTATION
COMPUTERIZED TOMOGRAPHY
DETECTION
DIAGNOSTIC TECHNIQUES
EMISSION COMPUTED TOMOGRAPHY
GADOLINIUM COMPOUNDS
GAMMA DETECTION
MATERIALS TESTING
POSITRON COMPUTED TOMOGRAPHY
RADIATION DETECTION
RADIOACTIVITY LOGGING
RARE EARTH COMPOUNDS
SCINTILLATIONS
TEMPERATURE DEPENDENCE
TESTING
TOMOGRAPHY
WELL LOGGING