Dose calculations for the concrete water tunnels at 190-C Area, Hanford Site

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Description

The RESRAD-BUILD code was used to calculate the radiological dose from the contaminated concrete water tunnels at the 190-C Area at the Hanford Site. Two exposure scenarios, recreationist and maintenance worker, were considered. A residential scenario was not considered because the material was assumed to be left intact (i.e., the concrete would not be rubbleized because the location would not be suitable for construction of a house). The recreationist was assumed to use the tunnel for 8 hours per day for 1 week as an overnight shelter. The maintenance worker was assumed to spend 20 hours per year working in ... continued below

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19 p.

Creation Information

Kamboj, S. & Yu, C. January 1, 1997.

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  • Kamboj, S.
  • Yu, C. Argonne National Lab., IL (United States). Environmental Assessment Div.

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Description

The RESRAD-BUILD code was used to calculate the radiological dose from the contaminated concrete water tunnels at the 190-C Area at the Hanford Site. Two exposure scenarios, recreationist and maintenance worker, were considered. A residential scenario was not considered because the material was assumed to be left intact (i.e., the concrete would not be rubbleized because the location would not be suitable for construction of a house). The recreationist was assumed to use the tunnel for 8 hours per day for 1 week as an overnight shelter. The maintenance worker was assumed to spend 20 hours per year working in the tunnel. Six exposure pathways were considered in calculating the dose. Three external exposure pathways involved penetrating radiation emitted directly from the contaminated tunnel floor, emitted from radioactive particulates deposited on the tunnel floor, and resulting from submersion in airborne radioactive particulates. Three internal exposure pathways involved inhalation of airborne radioactive particulates; inadvertent direct ingestion of removable, contaminated material on the tunnel floor; and inadvertent indirect ingestion of airborne particulates deposited on the tunnel floor. The gradual removal of surface contamination over time and the ingrowth of decay products were considered in calculating the dose at different times. The maximum doses were estimated to be 1.5 mrem/yr for the recreationist and 0.34 mrem/yr for the maintenance worker.

Physical Description

19 p.

Notes

INIS; OSTI as DE97003654

Source

  • Other Information: PBD: Jan 1997

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  • Other: DE97003654
  • Report No.: ANL/EAD/TM--65
  • Grant Number: W-31109-ENG-38
  • DOI: 10.2172/446347 | External Link
  • Office of Scientific & Technical Information Report Number: 446347
  • Archival Resource Key: ark:/67531/metadc687590

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Creation Date

  • January 1, 1997

Added to The UNT Digital Library

  • July 25, 2015, 2:21 a.m.

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  • June 14, 2016, 3:04 p.m.

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Kamboj, S. & Yu, C. Dose calculations for the concrete water tunnels at 190-C Area, Hanford Site, report, January 1, 1997; Illinois. (digital.library.unt.edu/ark:/67531/metadc687590/: accessed August 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.