Status report of the multi-element logging project

The multi-element logging project was an outgrowth of the PFN logging project, the objective of which was to make a direct assay of uranium. The objective of the multi-element logging probe project to determine the close proximity of uranium through the detection of elements which can be ''pathfinder'' elements associated with the deposition of uranium. Sandia National Laboratories built and evaluated a logging probe which incorporated a cooled, HPGe detector designed and built by EG and G-Ortec. This development model probe was used in several locations in the western US. The problems associated with the field use of the probe are described. The software used for the analysis of the gamma-ray spectra is summarized and reports describing the details of its design and use are referenced. 19 refs., 12 figs., 5 tabs.