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Title: Radionuclide Sensors and Systems for Environmental Monitoring

Abstract

We have developed automated sensor and monitoring devices for trace radionuclides in water, using preconcentrating columns and radiometric detection. The preconcentrating minicolumn sensor concept combines selective capture and detection in a single functional unit. We have demonstrated quantification of radionuclides such as technetium-99 to levels below drinking water standards in an equilibration-based process that produces steady state signals, signal proportional to concentration, and easy re-equilibration to new concentration levels. Alternatively, monitors can be developed with separate separation and detection units that are fluidically linked. We have demonstrated detection of strontium-90 to levels below drinking water standards by this approach. We are developing autonomous systems for at-site monitoring on the Hanford Site in Washington State.

Authors:
; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Org.:
USDOE
OSTI Identifier:
973982
Report Number(s):
PNNL-SA-64778
30400; KP1504010; TRN: US1002105
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
ECS Transactions, 19(6):301-304
Additional Journal Information:
Journal Volume: 19; Journal Issue: 6
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 54 ENVIRONMENTAL SCIENCES; RADIATION DETECTORS; DESIGN; RADIOISOTOPES; DETECTION; TRACE AMOUNTS; WATER; STRONTIUM 90; TECHNETIUM 99; Environmental Molecular Sciences Laboratory

Citation Formats

Grate, Jay W, O'Hara, Matthew J, Egorov, Oleg, and Burge, Scott R. Radionuclide Sensors and Systems for Environmental Monitoring. United States: N. p., 2009. Web. doi:10.1149/1.3118565.
Grate, Jay W, O'Hara, Matthew J, Egorov, Oleg, & Burge, Scott R. Radionuclide Sensors and Systems for Environmental Monitoring. United States. doi:10.1149/1.3118565.
Grate, Jay W, O'Hara, Matthew J, Egorov, Oleg, and Burge, Scott R. Mon . "Radionuclide Sensors and Systems for Environmental Monitoring". United States. doi:10.1149/1.3118565.
@article{osti_973982,
title = {Radionuclide Sensors and Systems for Environmental Monitoring},
author = {Grate, Jay W and O'Hara, Matthew J and Egorov, Oleg and Burge, Scott R},
abstractNote = {We have developed automated sensor and monitoring devices for trace radionuclides in water, using preconcentrating columns and radiometric detection. The preconcentrating minicolumn sensor concept combines selective capture and detection in a single functional unit. We have demonstrated quantification of radionuclides such as technetium-99 to levels below drinking water standards in an equilibration-based process that produces steady state signals, signal proportional to concentration, and easy re-equilibration to new concentration levels. Alternatively, monitors can be developed with separate separation and detection units that are fluidically linked. We have demonstrated detection of strontium-90 to levels below drinking water standards by this approach. We are developing autonomous systems for at-site monitoring on the Hanford Site in Washington State.},
doi = {10.1149/1.3118565},
journal = {ECS Transactions, 19(6):301-304},
number = 6,
volume = 19,
place = {United States},
year = {2009},
month = {5}
}