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Title: Radionuclide Sensors for Water Monitoring

Abstract

Radionuclide contamination in the soil and groundwater at U.S. Department of Energy (DOE) sites is a severe problem that requires monitoring and remediation. Radionuclide measurement techniques are needed to monitor surface waters, groundwater, and process waters. Typically, water samples are collected and transported to an analytical laboratory, where costly radiochemical analyses are performed. To date, there has been very little development of selective radionuclide sensors for alpha- and beta-emitting radionuclides such as 90Sr, 99Tc, and various actinides of interest. The objective of this project is to investigate novel sensor concepts and materials for sensitive and selective determination of beta- and alpha-emitting radionuclide contaminants in water. To meet the requirements for low-level, isotope-specific detection, the proposed sensors are based on radiometric detection. As a means to address the fundamental challenge of the short ranges of beta and alpha particle s in water, our overall approach is based on localization of preconcentration/separation chemistries directly on or within the active area of a radioactivity detector. Automated microfluidics is used for sample manipulation and sensor regeneration or renewal. The outcome of these investigations will be the knowledge necessary to choose appropriate chemistries for selective preconcentration of radionuclides from environmental samples, new materials that combinemore » chemical selectivity with scintillating properties, new materials that add chemical selectivity to solid-state diode detectors, new preconcentrating column sensors, and improved instrumentation and signal processing for selective radionuclide sensors. New knowledge will provide the basis for designing effective probes and instrumentation for field and in situ measurements.« less

Authors:
; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab., Richland, WA; Clemson University, Clemson, SC (US)
Sponsoring Org.:
USDOE Office of Science (SC) (US)
OSTI Identifier:
838767
Report Number(s):
EMSP-70179-2004
R&D Project: EMSP 70179; TRN: US0501528
DOE Contract Number:  
FG07-99ER62888
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 29 Jun 2004
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 54 ENVIRONMENTAL SCIENCES; ACTINIDES; ALPHA PARTICLES; CONTAMINATION; DETECTION; MONITORING; MONITORS; PROBES; PROCESSING; RADIOACTIVITY; RADIOISOTOPES; REGENERATION; SOILS; SURFACE WATERS; WATER

Citation Formats

Grate, Jay W, Egorov, Oleg B, and DeVol, Timothy A. Radionuclide Sensors for Water Monitoring. United States: N. p., 2004. Web. doi:10.2172/838767.
Grate, Jay W, Egorov, Oleg B, & DeVol, Timothy A. Radionuclide Sensors for Water Monitoring. United States. doi:10.2172/838767.
Grate, Jay W, Egorov, Oleg B, and DeVol, Timothy A. Tue . "Radionuclide Sensors for Water Monitoring". United States. doi:10.2172/838767. https://www.osti.gov/servlets/purl/838767.
@article{osti_838767,
title = {Radionuclide Sensors for Water Monitoring},
author = {Grate, Jay W and Egorov, Oleg B and DeVol, Timothy A},
abstractNote = {Radionuclide contamination in the soil and groundwater at U.S. Department of Energy (DOE) sites is a severe problem that requires monitoring and remediation. Radionuclide measurement techniques are needed to monitor surface waters, groundwater, and process waters. Typically, water samples are collected and transported to an analytical laboratory, where costly radiochemical analyses are performed. To date, there has been very little development of selective radionuclide sensors for alpha- and beta-emitting radionuclides such as 90Sr, 99Tc, and various actinides of interest. The objective of this project is to investigate novel sensor concepts and materials for sensitive and selective determination of beta- and alpha-emitting radionuclide contaminants in water. To meet the requirements for low-level, isotope-specific detection, the proposed sensors are based on radiometric detection. As a means to address the fundamental challenge of the short ranges of beta and alpha particle s in water, our overall approach is based on localization of preconcentration/separation chemistries directly on or within the active area of a radioactivity detector. Automated microfluidics is used for sample manipulation and sensor regeneration or renewal. The outcome of these investigations will be the knowledge necessary to choose appropriate chemistries for selective preconcentration of radionuclides from environmental samples, new materials that combine chemical selectivity with scintillating properties, new materials that add chemical selectivity to solid-state diode detectors, new preconcentrating column sensors, and improved instrumentation and signal processing for selective radionuclide sensors. New knowledge will provide the basis for designing effective probes and instrumentation for field and in situ measurements.},
doi = {10.2172/838767},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 29 00:00:00 EDT 2004},
month = {Tue Jun 29 00:00:00 EDT 2004}
}

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