Use of passive alpha detectors to screen for uranium contamination in a field at Fernald, Ohio

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Description

This paper reports the results from a field test of newly developed techniques for inexpensive, in situ screening of soil for alpha contamination. Passive alpha detectors that are commercially available for the detection indoor airborne alpha activity (i.e., {sup 222}Rn) have been modified so they can be applied to the detection of alpha contamination on surfaces or in soils. Results reported here are from an intercomparison involving several different techniques with all measurements being made at the same sites in a field near the formerly used uranium processing facility at Fernald, Ohio, during the summer of 1994. The results for ... continued below

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9 p.

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Dudney, C. S.; Meyer, K. E.; Gammage, R. B.; Wheeler, R. V.; Salasky, M. & Kotrappa, P. June 1995.

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Description

This paper reports the results from a field test of newly developed techniques for inexpensive, in situ screening of soil for alpha contamination. Passive alpha detectors that are commercially available for the detection indoor airborne alpha activity (i.e., {sup 222}Rn) have been modified so they can be applied to the detection of alpha contamination on surfaces or in soils. Results reported here are from an intercomparison involving several different techniques with all measurements being made at the same sites in a field near the formerly used uranium processing facility at Fernald, Ohio, during the summer of 1994. The results for two types of passive alpha detector show that the quality of calibration is improved if soils samples are milled to increase homogeneity within the soil matrices. The correlation between laboratory based radiochemical analyses and quick, field-based screening measurements is acceptable and can be improved if the passive devices are left for longer exposure times in the field. The total cost per measurement for either type of passive alpha detector is probably less than $25 and should provide a cost-effective means for site managers to develop the information needed to find areas with remaining alpha contamination so resources can be allocated efficiently.

Physical Description

9 p.

Notes

INIS; OSTI as DE95013353

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  • 4. international symposium on field screening methods for hazardous wastes and toxic chemicals, Las Vegas, NV (United States), 22-24 Feb 1995; Other Information: DN: TTP/OR158102

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  • Other: DE95013353
  • Report No.: CONF-950209--11
  • Grant Number: AC05-84OR21400
  • Office of Scientific & Technical Information Report Number: 80401
  • Archival Resource Key: ark:/67531/metadc741879

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  • June 1995

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  • Oct. 19, 2015, 7:39 p.m.

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  • Jan. 25, 2016, 8:04 p.m.

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Dudney, C. S.; Meyer, K. E.; Gammage, R. B.; Wheeler, R. V.; Salasky, M. & Kotrappa, P. Use of passive alpha detectors to screen for uranium contamination in a field at Fernald, Ohio, article, June 1995; Tennessee. (digital.library.unt.edu/ark:/67531/metadc741879/: accessed August 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.