Alpha contamination assessment for D&D activities: Technology overview

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Description

Instruments based on the principle of Long-Range Alpha Detection (LRAD) detect the ions created in ambient air by Ionizing radiation, particularly alpha radiation, interacting with air molecules. Using either an electrostatic field or forced convection, these ions can be transported to a detection grid where the ions produce a small current that is measured with a sensitive electrometer. LRAD-based instruments can give separate, simultaneous measurements of alpha-emitting solids and inert radioactive gases such as radon. LRAD-based instruments assess surface contamination on an entire object or large surface area in a single, rapid measurement, including relatively inaccessible areas such as interior ... continued below

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15 p.

Creation Information

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

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Description

Instruments based on the principle of Long-Range Alpha Detection (LRAD) detect the ions created in ambient air by Ionizing radiation, particularly alpha radiation, interacting with air molecules. Using either an electrostatic field or forced convection, these ions can be transported to a detection grid where the ions produce a small current that is measured with a sensitive electrometer. LRAD-based instruments can give separate, simultaneous measurements of alpha-emitting solids and inert radioactive gases such as radon. LRAD-based instruments assess surface contamination on an entire object or large surface area in a single, rapid measurement, including relatively inaccessible areas such as interior surfaces of pipes and process equipment. The LRAD concept is well proven and has been developed into a range of different radiation detection devices. This paper presents an overview of the technology, while several associated papers explore specific applications in greater detail.

Physical Description

15 p.

Notes

INIS; OSTI as DE96007454

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  • Other Information: PBD: Feb 1996

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  • Other: DE96007454
  • Report No.: LA--13062-MS
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/205170 | External Link
  • Office of Scientific & Technical Information Report Number: 205170
  • Archival Resource Key: ark:/67531/metadc667962

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Creation Date

  • February 1, 1996

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • Feb. 29, 2016, 8:23 p.m.

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Conaway, J.G.; Rawool-Sullivan, M.W. & MacArthur, D.W. Alpha contamination assessment for D&D activities: Technology overview, report, February 1, 1996; New Mexico. (digital.library.unt.edu/ark:/67531/metadc667962/: accessed August 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.