Application of in-situ gamma spectrometry in the remediation of radioactively contaminated soil

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Description

The Fernald Environmental Management Project (FEMP) is a US Department of Energy site that is undergoing total remediation and closure. Most of the remediation effort entails massive excavation of soil for disposal, both offsite and onsite, at an engineered disposal facility. In-situ gamma spectrometry is routinely used to support soil excavation operations to accurately and quickly identify soil areas as being above or below regulatory remediation criteria. Two different in-situ gamma spectrometry systems are used. The first is a sodium iodide (NaI) detector mounted either on a tractor or a jogging stroller, depending on the terrain to be measured. The ... continued below

Physical Description

9 p.

Creation Information

Sutton, C.; Yesso, J.D.; Danahy, R.J. & Cox, T. June 1, 1999.

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Description

The Fernald Environmental Management Project (FEMP) is a US Department of Energy site that is undergoing total remediation and closure. Most of the remediation effort entails massive excavation of soil for disposal, both offsite and onsite, at an engineered disposal facility. In-situ gamma spectrometry is routinely used to support soil excavation operations to accurately and quickly identify soil areas as being above or below regulatory remediation criteria. Two different in-situ gamma spectrometry systems are used. The first is a sodium iodide (NaI) detector mounted either on a tractor or a jogging stroller, depending on the terrain to be measured. The NaI system allows the collection of a gamma energy spectrum which can be analyzed to identify and quantify radioactive isotopes which are present within the detector`s viewing area. Each energy spectrum is tagged by location coordinates provided by an on-board global positioning system (GPS) to precisely locate elevated contamination areas. The second is a tripod-mounted, high purity germanium detector (HPGe) gamma spectrometry system that is functionally similar to the NaI system. The principal advantage of the HPGe is its superior resolution, which allows much more accurate identification and quantification of radionuclide contaminants in soils. In order to effectively utilize the data quality objective process with these systems, three quality assurance (QA) elements had to be performed.

Physical Description

9 p.

Notes

INIS; OSTI as DE99002729

Source

  • 1999 waste testing and quality assurance symposium, Washington, DC (United States), 19 Jul 1999

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  • Other: DE99002729
  • Report No.: FEMP--2568
  • Report No.: CONF-990708--
  • Grant Number: AC24-92OR21972
  • DOI: 10.2172/353354 | External Link
  • Office of Scientific & Technical Information Report Number: 353354
  • Archival Resource Key: ark:/67531/metadc686985

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Creation Date

  • June 1, 1999

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • Nov. 18, 2015, 6:21 p.m.

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Sutton, C.; Yesso, J.D.; Danahy, R.J. & Cox, T. Application of in-situ gamma spectrometry in the remediation of radioactively contaminated soil, report, June 1, 1999; United States. (digital.library.unt.edu/ark:/67531/metadc686985/: accessed September 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.