Summary of analysis results for sediments provided by Texas A and M University

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Description

Two soil samples were received by the Lawrence Livermore National Laboratory (LLNL) from Texas A&M University (TA&M) for the measurement of low-level {sup 226}Ra and {sup 228}Ra. This effort was part of a project conducted by the American Petroleum Institute and Gas Research Institute to measure {sup 226}Ra and {sup 228}Ra in media relevant to offshore oil and gas operations. The two samples were prepared for counting by packaging each in separate, high-precision, polycarbonate containers. The sample material was then compressed inside each container to minimize Rn migration, the sample weight determined, and a head-space-filling insert emplaced to occupy the ... continued below

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364 Kilobytes pages

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Conrado, C & Kreek, S A August 1, 1999.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

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Description

Two soil samples were received by the Lawrence Livermore National Laboratory (LLNL) from Texas A&M University (TA&M) for the measurement of low-level {sup 226}Ra and {sup 228}Ra. This effort was part of a project conducted by the American Petroleum Institute and Gas Research Institute to measure {sup 226}Ra and {sup 228}Ra in media relevant to offshore oil and gas operations. The two samples were prepared for counting by packaging each in separate, high-precision, polycarbonate containers. The sample material was then compressed inside each container to minimize Rn migration, the sample weight determined, and a head-space-filling insert emplaced to occupy the vacant space above the sample and provide a tight seal against the top of the sample. The containers were then sealed and the samples set aside for 21 days to permit {sup 222}Rn ingrowth. The use of the custom packaging yields counting samples with known cross-sectional area (10.0 cm{sup 2}), density, and thickness.

Physical Description

364 Kilobytes pages

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  • Other Information: PBD: 1 Aug 1999

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  • Report No.: UCRL-ID-135294
  • Grant Number: W-7405-ENG-48
  • DOI: 10.2172/14139 | External Link
  • Office of Scientific & Technical Information Report Number: 14139
  • Archival Resource Key: ark:/67531/metadc624768

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  • August 1, 1999

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • May 6, 2016, 2:04 p.m.

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Conrado, C & Kreek, S A. Summary of analysis results for sediments provided by Texas A and M University, report, August 1, 1999; California. (digital.library.unt.edu/ark:/67531/metadc624768/: accessed September 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.