Applicability of barium fluoride and cadmium tungstate scintillators for well logging

Conference · Wed Feb 01 04:00:00 EST 1989 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:6359764

Melcher, C L; Manente, R A; Schweitzer, J S

Barium fluoride and cadmium tungstate have previously been used as radiation detectors in a number of applications such as high energy physics and tomographic imaging. The authors have studied the fundamental properties of these materials, with particular attention to properties relevant to nuclear well logging applications and their temperature dependence. Both detectors have properties that would seem to make them useful for specific logging measurements. However, using these materials requires overcoming other properties that limit their usefulness. For example, barium fluoride has a fast emission output that lends itself to high counting rates. The intensity of this emission, however, is very weak and, in addition, is at a wavelength that is not efficiently detected by common logging photomultipliers. Cadmium tungstate's high density and atomic number give it excellent detection efficiency, but its applications in well logging are limited by its long scintillation decay constant.

• Research Organization: Schlumberger-Doll Research, Old Quarry Road, Ridgefield, CT (US)
• OSTI ID: 6359764
• Report Number(s): CONF-881103-
• Conference Information: Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: 36:1
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
43 PARTICLE ACCELERATORS
430303* -- Particle Accelerators-- Experimental Facilities & Equipment
440104 -- Radiation Instrumentation-- High Energy Physics Instrumentation
440400 -- Well Logging Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
47 OTHER INSTRUMENTATION
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM FLUORIDES
CADMIUM COMPOUNDS
CADMIUM TUNGSTATES
DIAGNOSTIC TECHNIQUES
EMISSION
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HIGH ENERGY PHYSICS
IMAGE PROCESSING
INORGANIC PHOSPHORS
MATERIALS TESTING
MEASURING INSTRUMENTS
PERFORMANCE
PHOSPHORS
PHOTOMULTIPLIERS
PHOTOTUBES
PHYSICS
PROCESSING
RADIATION DETECTORS
SCINTILLATION COUNTERS
TESTING
TOMOGRAPHY
TUNGSTATES
WELL LOGGING