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Plutonium hot particle separation techniques using real-time digital image systems

Eriksson, Mats LU ; Ljunggren, Kaj LU and Hindorf, Cecilia LU (2002) In Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment 488(1-2). p.375-380
Abstract
Two real-time digital imaging systems, able to replace conventional autoradiography for radioactive hot particle separation and identification, are presented in this paper. The hot plutonium particles used for the study originate from the Thule nuclear weapon accident, Both of the real-time imaging techniques are initiated with sample splitting and measurements with a HPGe detector. in order to detect the gamma-emitting Pu-241 daughter Am-241, which is an indicator of plutonium hot particle in the sample. The time required for the whole process of separation and identification of one single particle from a bulk sediment sample (150 g dry weight) is of the order of 1-2 days, and is highly dependent on its activity. The real-time digital... (More)
Two real-time digital imaging systems, able to replace conventional autoradiography for radioactive hot particle separation and identification, are presented in this paper. The hot plutonium particles used for the study originate from the Thule nuclear weapon accident, Both of the real-time imaging techniques are initiated with sample splitting and measurements with a HPGe detector. in order to detect the gamma-emitting Pu-241 daughter Am-241, which is an indicator of plutonium hot particle in the sample. The time required for the whole process of separation and identification of one single particle from a bulk sediment sample (150 g dry weight) is of the order of 1-2 days, and is highly dependent on its activity. The real-time digital imaging systems presented in this paper are preferable, compared to conventional autoradiography and the CR-39 technique, when separation and identification of hot particles are needed as they are much faster and in addition give a real-time image of the particle. (C) 2002 Elsevier Science B.V. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
separation technique, real-time digital image system, hot particle, Thule accident, plutonium, sediment
in
Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
volume
488
issue
1-2
pages
375 - 380
publisher
Elsevier
external identifiers
  • wos:000177752000032
  • scopus:0036680132
ISSN
0167-5087
DOI
10.1016/S0168-9002(02)00438-2
language
English
LU publication?
yes
id
2e27d296-a71e-49aa-bf44-6916a5478043 (old id 329411)
date added to LUP
2007-08-17 11:08:52
date last changed
2017-01-01 07:23:14
@article{2e27d296-a71e-49aa-bf44-6916a5478043,
  abstract     = {Two real-time digital imaging systems, able to replace conventional autoradiography for radioactive hot particle separation and identification, are presented in this paper. The hot plutonium particles used for the study originate from the Thule nuclear weapon accident, Both of the real-time imaging techniques are initiated with sample splitting and measurements with a HPGe detector. in order to detect the gamma-emitting Pu-241 daughter Am-241, which is an indicator of plutonium hot particle in the sample. The time required for the whole process of separation and identification of one single particle from a bulk sediment sample (150 g dry weight) is of the order of 1-2 days, and is highly dependent on its activity. The real-time digital imaging systems presented in this paper are preferable, compared to conventional autoradiography and the CR-39 technique, when separation and identification of hot particles are needed as they are much faster and in addition give a real-time image of the particle. (C) 2002 Elsevier Science B.V. All rights reserved.},
  author       = {Eriksson, Mats and Ljunggren, Kaj and Hindorf, Cecilia},
  issn         = {0167-5087},
  keyword      = {separation technique,real-time digital image system,hot particle,Thule accident,plutonium,sediment},
  language     = {eng},
  number       = {1-2},
  pages        = {375--380},
  publisher    = {Elsevier},
  series       = {Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment},
  title        = {Plutonium hot particle separation techniques using real-time digital image systems},
  url          = {http://dx.doi.org/10.1016/S0168-9002(02)00438-2},
  volume       = {488},
  year         = {2002},
}