ANALYSIS OF THE TANK 5F FINAL CHARATERIZATION SAMPLES-2011 Metadata

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Title

  • Main Title ANALYSIS OF THE TANK 5F FINAL CHARATERIZATION SAMPLES-2011

Creator

  • Author: Oji, L.
    Creator Type: Personal
  • Author: Diprete, D.
    Creator Type: Personal
  • Author: Coleman, C.
    Creator Type: Personal
  • Author: Hay, M.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization

Publisher

  • Name: Savannah River Site (S.C.)
    Place of Publication: United States
    Additional Info: SRS

Date

  • Creation: 2012-01-20

Language

  • English

Description

  • Content Description: The Savannah River National Laboratory (SRNL) was requested by SRR to provide sample preparation and analysis of the Tank 5F final characterization samples to determine the residual tank inventory prior to grouting. Two types of samples were collected and delivered to SRNL: floor samples across the tank and subsurface samples from mounds near risers 1 and 5 of Tank 5F. These samples were taken from Tank 5F between January and March 2011. These samples from individual locations in the tank (nine floor samples and six mound Tank 5F samples) were each homogenized and combined in a given proportion into 3 distinct composite samples to mimic the average composition in the entire tank. These Tank 5F composite samples were analyzed for radiological, chemical and elemental components. Additional measurements performed on the Tank 5F composite samples include bulk density and water leaching of the solids to account for water soluble species. With analyses for certain challenging radionuclides as the exception, all composite Tank 5F samples were analyzed and reported in triplicate. The target detection limits for isotopes analyzed were based on customer desired detection limits as specified in the technical task request documents. SRNL developed new methodologies to meet these target detection limits and provide data for the extensive suite of components. While many of the target detection limits were met for the species characterized for Tank 5F, as specified in the technical task request, some were not met. In a few cases, the relatively high levels of radioactive species of the same element or a chemically similar element precluded the ability to measure some isotopes to low levels. The Technical Task Request allows that while the analyses of these isotopes is needed, meeting the detection limits for these isotopes is a lower priority than meeting detection limits for the other specified isotopes. The isotopes whose detection limits were not met in all cases included the following: Al-26, Sn-126, Sb-126, Sb-126m, Eu-152 and Cf-249. SRNL, in conjunction with the plant customer, reviewed all these cases and determined that the impacts were negligible.

Subject

  • Keyword: Leaching
  • Keyword: Sample Preparation
  • Keyword: Sensitivity
  • Keyword: Radioisotopes
  • Keyword: Floors
  • Keyword: Water
  • Keyword: Savannah River Plant
  • Keyword: Tanks
  • STI Subject Categories: 12 Management Of Radioactive Wastes, And Non-Radioactive Wastes From Nuclear Facilities
  • Keyword: Bulk Density
  • Keyword: Grouting
  • Keyword: Targets

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report

Format

  • Text

Identifier

  • Report No.: SRNL-STI-2012-00034
  • Grant Number: DE-AC09-08SR22470
  • DOI: 10.2172/1034393
  • Office of Scientific & Technical Information Report Number: 1034393
  • Archival Resource Key: ark:/67531/metadc844993

Note

  • Display Note: available