Development of proposed free release criteria for Idaho National Engineering Laboratory lead

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The INEL Lead Management Project (LMP) performed an investigation of the origin of lead used as shielding at the INEL and developed radiological profile information that was then used to establish a baseline for the DOE ``no-rad-added`` standard. Primary findings of the investigation include the following: (a) Much of the lead at the INEL was obtained from a DOE lead bank; (b) Lead inventory at the DOE lead bank was derived primarily from recycled sources and was most likely in the form of pure lead; (c) Secondary lead (lead from recycled sources), available in today`s market, is expected to have ... continued below

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11 p.

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Losinski, S.J. December 31, 1994.

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This article 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 article can be viewed below.

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  • Losinski, S.J. EG and G Idaho, Inc., Idaho Falls, ID (United States)

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Description

The INEL Lead Management Project (LMP) performed an investigation of the origin of lead used as shielding at the INEL and developed radiological profile information that was then used to establish a baseline for the DOE ``no-rad-added`` standard. Primary findings of the investigation include the following: (a) Much of the lead at the INEL was obtained from a DOE lead bank; (b) Lead inventory at the DOE lead bank was derived primarily from recycled sources and was most likely in the form of pure lead; (c) Secondary lead (lead from recycled sources), available in today`s market, is expected to have radiological characteristics similar to those of the DOE lead bank; (d) Highly sensitive radiological testing of 20 samples of lead from secondary sources revealed the lead to be radiologically pristine. Beta-, gamma-, and alpha-emitting radionuclide concentrations were all found to be less than detectable, except for a very small quantity of lead-210 (an alpha emitter), which is a naturally occurring isotope of lead. Based on the pristine nature of lead, a proposed free release criterion for lead was developed based on a statistical null hypothesis approach. The free release criterion compares the natural background count of a clean lead standard with the natural background count of a sample. When the sample background count cannot be distinguished as different from the standard background count at the 95% confidence level, then the sample is considered radiologically clean.

Physical Description

11 p.

Notes

INIS; OSTI as DE95008617

Source

  • 16. US Department of Energy low-level radioactive waste management conference, Phoenix, AZ (United States), 13-15 Dec 1994

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  • Other: DE95008617
  • Report No.: INEL--94/00051
  • Report No.: CONF-941214--7
  • Grant Number: AC07-94ID13223
  • Office of Scientific & Technical Information Report Number: 37984
  • Archival Resource Key: ark:/67531/metadc679248

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  • December 31, 1994

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  • July 25, 2015, 2:20 a.m.

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  • Feb. 24, 2016, 6:01 p.m.

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Losinski, S.J. Development of proposed free release criteria for Idaho National Engineering Laboratory lead, article, December 31, 1994; Idaho Falls, Idaho. (digital.library.unt.edu/ark:/67531/metadc679248/: accessed August 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.