Status of a Pulsed-Neutron Logging Probe Using a High-Purity Germanium Detector

The development of a logging tool which has the potential for identifying a large number of elements in a borehole configuration has been described. Most problems with the tool have been resolved, and the results presently obtained are encouraging. The analysis of the data taken with the multi-element tool is presently only qualitative for the active spectra, with the identification of lines from several elements including Ge, Na, Cr, Mo, Fe, H, Si, Cl, Ca, Al, Mg, and Co. The development of techniques for obtaining quantitative data for these elements and others should begin in 1983.