Darya Morozov, David Walsh, Cristina McLaughlin, Anh Nguyen, Elliot Grunewald, Warren Caldwell, Daniel Pipp, Nicholas Basore, Thomas Christy and, Jorge Macedo
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High-Resolution Direct Push NMR Tools for Groundwater Investigations
A small-diameter nuclear magnetic resonance (NMR) technology optimized for use with direct push (DP) and cone penetrometer test (CPT) drilling has been developed. The DP NMR tool can be deployed through 2.25-in. diameter DP and CPT drilling rods allowing high-resolution NMR logging measurements to be acquired during retraction of drill rods. DP NMR technology runs from a person-portable battery-powered control unit and provides significantly higher resolution in both the spatial (vertical) dimension and in the time domain of the NMR measurement than previously available NMR technology. In this study, we summarize the development of two different DP NMR tools and demonstrate their application at different sites within the United States. We believe that this technology can provide a leap forward in adoption of NMR technology for high-resolution hydrological and geophysical investigations in groundwater resources and environmental remediation applications.
期刊介绍：
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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