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Title: Real-Time Soil Characterization and Analysis Systems Used at US Department of Energy Closure Sites in Ohio

Abstract

The Idaho National Engineering and Environmental Laboratory (INEEL) and the Fernald Environmental Management Project (FEMP) have jointly developed a field-deployed analytical system to rapidly scan, characterize, and analyze surface soil contamination. The basic system consists of a sodium iodide (NaI) spectrometer and global positioning system (GPS) hardware. This hardware can be deployed from any of four different platforms depending on the scope of the survey at hand. These platforms range from a large tractor-based unit (the RTRAK) used to survey large, relatively flat areas to a hand-pushed unit where maneuverability is important, to an excavator mounted system used to scan pits and trenches. The mobile sodium iodide concept was initially developed by the FEMP to provide pre-screening analyses for soils contaminated with uranium, thorium, and radium. The initial study is documented in the RTRAK Applicability Study and provides analyses supporting the field usage of the concept. The RTRAK system produced data that required several days of post-processing and analyses to generate an estimation of field coverage and activity levels. The INEEL has provided integrated engineering, computer hardware and software support to greatly streamline the data acquisition and analysis process to the point where real-time activity and coverage maps are availablemore » to the field technicians. On-line analyses have been added to automatically convert GPS data to Ohio State-Plane coordinates, examine and correct collected spectra for energy calibration drifts common to NaI spectrometers, and strip spectra in regions of interest to provide moisture corrected activity levels for total uranium, thorium-232, and radium-226. Additionally, the software provides a number of checks and alarms to alert operators that a hand-examination of spectral data in a particular area may be required. The FEMP has estimated that this technology has produced projected site savings in excess of $34M through FY 2006. Additionally, the INEEL has applied this real-time concept to develop an in-situ platform to detect plutonium-238 in contaminated soils to the 50 pCi/g level. The heart of this system is a large-area proportional counter that collects spectra in the x-ray region. A prototype system was demonstrated at the Mound Environmental Management Project (MEMP) in October of 2002.« less

Authors:
; ; ;
Publication Date:
Research Org.:
Idaho National Engineering and Environmental Lab., Idaho Falls, ID; Fernald Environmental Management Project, Ross, OH (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
826379
Resource Type:
Conference
Resource Relation:
Conference: Waste Management 2003 Symposium, Tucson, AZ (US), 02/23/2003--02/27/2003; Other Information: PBD: 25 Feb 2003
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 54 ENVIRONMENTAL SCIENCES; ACTIVITY LEVELS; CLOSURES; DATA ACQUISITION; EARTHMOVING EQUIPMENT; MANAGEMENT; OHIO; PLUTONIUM 238; PROPORTIONAL COUNTERS; RADIUM 226; SODIUM IODIDES; SOILS; THORIUM 232; WASTE MANAGEMENT

Citation Formats

Roybal, L. G., Carpenter, M. V., Giles, J. R., and Danahy, R. J. Real-Time Soil Characterization and Analysis Systems Used at US Department of Energy Closure Sites in Ohio. United States: N. p., 2003. Web.
Roybal, L. G., Carpenter, M. V., Giles, J. R., & Danahy, R. J. Real-Time Soil Characterization and Analysis Systems Used at US Department of Energy Closure Sites in Ohio. United States.
Roybal, L. G., Carpenter, M. V., Giles, J. R., and Danahy, R. J. Tue . "Real-Time Soil Characterization and Analysis Systems Used at US Department of Energy Closure Sites in Ohio". United States. https://www.osti.gov/servlets/purl/826379.
@article{osti_826379,
title = {Real-Time Soil Characterization and Analysis Systems Used at US Department of Energy Closure Sites in Ohio},
author = {Roybal, L. G. and Carpenter, M. V. and Giles, J. R. and Danahy, R. J.},
abstractNote = {The Idaho National Engineering and Environmental Laboratory (INEEL) and the Fernald Environmental Management Project (FEMP) have jointly developed a field-deployed analytical system to rapidly scan, characterize, and analyze surface soil contamination. The basic system consists of a sodium iodide (NaI) spectrometer and global positioning system (GPS) hardware. This hardware can be deployed from any of four different platforms depending on the scope of the survey at hand. These platforms range from a large tractor-based unit (the RTRAK) used to survey large, relatively flat areas to a hand-pushed unit where maneuverability is important, to an excavator mounted system used to scan pits and trenches. The mobile sodium iodide concept was initially developed by the FEMP to provide pre-screening analyses for soils contaminated with uranium, thorium, and radium. The initial study is documented in the RTRAK Applicability Study and provides analyses supporting the field usage of the concept. The RTRAK system produced data that required several days of post-processing and analyses to generate an estimation of field coverage and activity levels. The INEEL has provided integrated engineering, computer hardware and software support to greatly streamline the data acquisition and analysis process to the point where real-time activity and coverage maps are available to the field technicians. On-line analyses have been added to automatically convert GPS data to Ohio State-Plane coordinates, examine and correct collected spectra for energy calibration drifts common to NaI spectrometers, and strip spectra in regions of interest to provide moisture corrected activity levels for total uranium, thorium-232, and radium-226. Additionally, the software provides a number of checks and alarms to alert operators that a hand-examination of spectral data in a particular area may be required. The FEMP has estimated that this technology has produced projected site savings in excess of $34M through FY 2006. Additionally, the INEEL has applied this real-time concept to develop an in-situ platform to detect plutonium-238 in contaminated soils to the 50 pCi/g level. The heart of this system is a large-area proportional counter that collects spectra in the x-ray region. A prototype system was demonstrated at the Mound Environmental Management Project (MEMP) in October of 2002.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {2}
}

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