Verification survey of buildings 200 hot cells

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Description

At the start of this D&D project, the decontamination goals were set at (1) reducing the stack emissions to 10% of the 1991 emissions; (2) reducing the exposure rate in each cell to < 1 mR/h; and (3) reducing the removable contamination to none detectable. Since the contamination can be fixed with paint, the other two goals were given priority. The estimate of the 1995 emissions from K-3 was 20% of the 1991 emissions estimate. However, the 1996 estimates are {approximately}9% of the 1991 emissions estimate. Since in 1991 the K-3 emissions were only 1/2% of the emissions from M-1, ... continued below

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212 p.

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Sholeen, C.M. March 1, 1996.

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Description

At the start of this D&D project, the decontamination goals were set at (1) reducing the stack emissions to 10% of the 1991 emissions; (2) reducing the exposure rate in each cell to < 1 mR/h; and (3) reducing the removable contamination to none detectable. Since the contamination can be fixed with paint, the other two goals were given priority. The estimate of the 1995 emissions from K-3 was 20% of the 1991 emissions estimate. However, the 1996 estimates are {approximately}9% of the 1991 emissions estimate. Since in 1991 the K-3 emissions were only 1/2% of the emissions from M-1, even the 20% reduction has little effect on the project reduction. The total emissions have been reduce to {approximately}2 1/4% of the 1991 emissions from the 5 hot cells that were decontaminated. The emissions and exposure rates are presented in Table I below. Cells A-1 and M-1 exceed the exposure rate criteria. For the other cells, the general exposure rate in the middle of the cell meets the criteria. However, near the prefilters, the exposure rates increase. Cell M-1 has extensive floor contamination that penetrated to a 6 inch depth. At 30 cm above the floor, the exposure rate through the lead blanket is 50 mR/h. A more detailed list of acceptance criteria were specified before the final verification survey. Table ii compares the maximum survey results on the wall or floor surface of each cell to these criteria. Cells M-1 and A-1 frequently fail to meet these criteria.

Physical Description

212 p.

Notes

INIS; OSTI as DE96011918

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  • Other Information: PBD: Mar 1996

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  • Other: DE96011918
  • Report No.: ANL/ESH-HP--96/02
  • Grant Number: W-31109-ENG-38
  • DOI: 10.2172/243501 | External Link
  • Office of Scientific & Technical Information Report Number: 243501
  • Archival Resource Key: ark:/67531/metadc668983

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • March 1, 1996

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • Dec. 16, 2015, 4:51 p.m.

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Sholeen, C.M. Verification survey of buildings 200 hot cells, report, March 1, 1996; Illinois. (digital.library.unt.edu/ark:/67531/metadc668983/: accessed October 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.