Detection of Depleted Uranium in Soil Using Portable Hand-Held Instruments

摘要

The Measurement Applications and Development Group at the Oak Ridge National211u001eLaboratory (ORNL) has collected and analyzed data with the purpose of evaluating 211u001ethe in-situ detection capabilities of common hand-held detectors for depleted 211u001euranium ((sup 238)U) in soil. Measurements were collected with one each of the 211u001efollowing detectors: a FIDLER operated in a gross (full spectrum) mode, a FIDLER 211u001eoperated in a spectrum specific (windowed) mode, a 1.25 inches x 1.5 inches 211u001ecylindrical NaI detector operated with a gross count rate system, and both open 211u001eand closed-window pancake-type detectors. Representative samples were then 211u001ecollected at the same location and later analyzed at an ORNL laboratory. This 211u001ereport presents a correlation between the measurements and the soil concentration 211u001eresults and should be helpful to anyone interested in estimating measurement 211u001esensitivities for depleted uranium in soil.