Title :
He/sup 3/ neutron detectors for hostile environments
Author :
Glesius, Frederick L. ; Kniss, Timothy A.
Author_Institution :
GE Reuter-Stokes, Twinsburg, OH, USA
Abstract :
The He/sup 3/ proportional counter is widely used for neutron detection in nuclear well-logging tools, where high levels of thermal and mechanical stress are routine. The capabilities of these devices are summarized, and the chief mechanisms related to stable operation in the logging-tool environment are examined to provide some practical guidance to tool designers and users. The discussion covers charge output, He/sup 3/ proportional counter spectra, thermal neutron sensitivity, gamma sensitivity, temperature effects, and spurious signals. The use of integral decoupling networks is briefly considered.<>
Keywords :
gamma-ray detection and measurement; geophysical equipment; neutron detection and measurement; proportional counters; /sup 3/He neutron detector; /sup 3/He proportional counter; charge output; gamma sensitivity; hostile environments; integral decoupling networks; nuclear well-logging tools; spectra; spurious signals; temperature effects; thermal neutron sensitivity; Anodes; Electric shock; Electrons; Instruments; Neutrons; Particle tracking; Pulse amplifiers; Radiation detectors; Stress; Voltage;
Journal_Title :
Nuclear Science, IEEE Transactions on
