Alpha contamination assessment for D&D activities: Monitoring inside glove boxes and vessels

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Description

We have developed a new approach to glove box monitoring that involves drawing air out of one glove port through a detection grid that collects ions created in the air inside the glove box by ionizing radiation, especially alpha radiation. The charge deposited on the detection grid by the ions is measured with a sensitive electrometer. The air can be circulated back to the glove box through the other glove port, preventing contamination from leaving the glove box and detector system. Initial experiments using a mock-up constructed of sheet metal indicate that this technology provides the measurement technique needed to ... continued below

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10 p.

Creation Information

Rawool-Sullivan, M.W.; Bolton, R.D.; Conaway, J.G. & MacArthur, D.W. February 1, 1996.

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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. It has been viewed 19 times , with 5 in the last month . More information about this report can be viewed below.

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Description

We have developed a new approach to glove box monitoring that involves drawing air out of one glove port through a detection grid that collects ions created in the air inside the glove box by ionizing radiation, especially alpha radiation. The charge deposited on the detection grid by the ions is measured with a sensitive electrometer. The air can be circulated back to the glove box through the other glove port, preventing contamination from leaving the glove box and detector system. Initial experiments using a mock-up constructed of sheet metal indicate that this technology provides the measurement technique needed to perform a defensible, non-invasive measurement of alpha contamination inside glove boxes destined for waste disposal. This can result in an enormous cost savings if a given glove box can be shown to fall into the catagory of Low-Level Waste rather than Trans-Uranic Waste. Considering that hundreds of glove boxes contaminated with plutonium will be taken out of service at various nuclear facilities over the next few years, the potential cost savings associated with disposal as LLW rather than TRU waste are substantial.

Physical Description

10 p.

Notes

INIS; OSTI as DE96007456

Source

  • Other Information: PBD: Feb 1996

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  • Other: DE96007456
  • Report No.: LA--13060-MS
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/204714 | External Link
  • Office of Scientific & Technical Information Report Number: 204714
  • Archival Resource Key: ark:/67531/metadc667917

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • February 1, 1996

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

Description Last Updated

  • Feb. 29, 2016, 8:23 p.m.

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Rawool-Sullivan, M.W.; Bolton, R.D.; Conaway, J.G. & MacArthur, D.W. Alpha contamination assessment for D&D activities: Monitoring inside glove boxes and vessels, report, February 1, 1996; New Mexico. (digital.library.unt.edu/ark:/67531/metadc667917/: accessed August 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.