Environmental assessment for the relocation and storage of isotopic heat sources, Hanford Site, Richland, Washington

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As part of a bilateral agreement between the Federal Minister for Research and Technology of the Federal Republic of Germany (FRG) and the DOE, Pacific Northwest National Laboratory (PNNL) developed processes for the treatment and immobilization of high-level radioactive waste. One element of this bilateral agreement was the production of sealed isotopic heat sources. During the mid-1980s, 30 sealed isotopic heat sources were manufactured. The sources contain a total of approximately 8.3 million curies consisting predominantly of cesium-137 and strontium-90 with trace amounts of transuranic contamination. Currently, the sources are stored in A-Cell of the 324 Building. Intense radiation fields ... continued below

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79 p.

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Creator: Unknown. June 1, 1997.

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Description

As part of a bilateral agreement between the Federal Minister for Research and Technology of the Federal Republic of Germany (FRG) and the DOE, Pacific Northwest National Laboratory (PNNL) developed processes for the treatment and immobilization of high-level radioactive waste. One element of this bilateral agreement was the production of sealed isotopic heat sources. During the mid-1980s, 30 sealed isotopic heat sources were manufactured. The sources contain a total of approximately 8.3 million curies consisting predominantly of cesium-137 and strontium-90 with trace amounts of transuranic contamination. Currently, the sources are stored in A-Cell of the 324 Building. Intense radiation fields from the sources are causing the cell windows and equipment to deteriorate. Originally, it was not intended to store the isotopic heat sources for this length of time in A-cell. The 34 isotopic heat sources are classified as remote handled transuranic wastes. Thirty-one of the isotopic heat sources are sealed, and seals on the three remaining isotopic heat sources have not been verified. However, a decision has been made to place the remaining three isotopic heat sources in the CASTOR cask(s). The Washington State Department of Health (WDOH) has concurred that isotopic heat sources with verified seals or those placed into CASTOR cask(s) can be considered sealed (no potential to emit radioactive air emissions) and are exempt from WAC Chapter 246-247, Radiation Protection-Air Emissions.

Physical Description

79 p.

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INIS; OSTI as DE97007985

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  • Other Information: PBD: Jun 1997

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  • Other: DE97007985
  • Report No.: DOE/EA--1211
  • DOI: 10.2172/510360 | External Link
  • Office of Scientific & Technical Information Report Number: 510360
  • Archival Resource Key: ark:/67531/metadc692263

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  • June 1, 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • Feb. 20, 2017, 1:09 p.m.

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Environmental assessment for the relocation and storage of isotopic heat sources, Hanford Site, Richland, Washington, report, June 1, 1997; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc692263/: accessed August 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.