Feasibility of Uranium Concentration Measurements for H Canyon Tank 16.7

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Savannah River Technology Center (SRTC) evaluated the feasibility of using the H Canyon on-line diode array spectrophotometer to measure uranium concentrations in Tank 16.7. On-line measurements will allow an increase in highly enriched uranium (HEU) production by removing delays associated with off-line measurements. The instrument must be able to measure uranium at concentrations below 1.0 g/L with an uncertainty no greater than 0.3 g/L. SRTC determined that the system has a limit of quantitation of 0.15 g/L. At concentrations of 0.5 and 1.0 g/L, the spectrometer uncertainty is 0.10 g/L. No design changes, such as an increase in flow cell ... continued below

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Lascola, R.J. January 29, 2003.

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Savannah River Technology Center (SRTC) evaluated the feasibility of using the H Canyon on-line diode array spectrophotometer to measure uranium concentrations in Tank 16.7. On-line measurements will allow an increase in highly enriched uranium (HEU) production by removing delays associated with off-line measurements. The instrument must be able to measure uranium at concentrations below 1.0 g/L with an uncertainty no greater than 0.3 g/L. SRTC determined that the system has a limit of quantitation of 0.15 g/L. At concentrations of 0.5 and 1.0 g/L, the spectrometer uncertainty is 0.10 g/L. No design changes, such as an increase in flow cell path length, are required to obtain this performance. Expected levels of iron in Tank 16.7 solutions will not interfere with the measurement. The CHEMCHEK method should not be used for confirmatory analysis, as it contributes excessively to the overall uncertainty of the measurement. SRTC expects that the spectrophotometer will meet the measurement requirements for Tank 16.7.

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  • Other Information: PBD: 29 Jan 2003

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  • Report No.: WSRC-TR-2002-00568
  • Grant Number: AC09-96SR18500
  • DOI: 10.2172/807390 | External Link
  • Office of Scientific & Technical Information Report Number: 807390
  • Archival Resource Key: ark:/67531/metadc737991

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  • January 29, 2003

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  • Oct. 18, 2015, 6:40 p.m.

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  • May 5, 2016, 1:52 p.m.

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Lascola, R.J. Feasibility of Uranium Concentration Measurements for H Canyon Tank 16.7, report, January 29, 2003; South Carolina. (digital.library.unt.edu/ark:/67531/metadc737991/: accessed October 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.