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Shielded and unshielded geometries in the search for orphan sources.

Hjerpe, Thomas LU and Samuelsson, Christer LU (2006) In Applied Radiation and Isotopes 64(Dec 29). p.551-555
Abstract
A car-borne NaI(TI) spectrometric system was used together with a Cs-137 source to obtain realistic data in the search for unshielded and semi-shielded orphan sources. The potassium-stripped counts (PSC) method was used to estimate the influence by the shielding on the detection ability. A reduction of about 5% in the critical distance was obtained for the semi-shielded source. A curve fitting method was also developed and evaluated. Results from the curve fitting method showed inferior ability to find the source compared to the PSC method. However, it can be a useful complementary tool, for characterisation of the source shielding, and estimation of the distance from the road. (c) 2005 Elsevier Ltd. All rights reserved.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
radioactive source search, mobile gamma spectrometry, orphan sources
in
Applied Radiation and Isotopes
volume
64
issue
Dec 29
pages
551 - 555
publisher
Elsevier
external identifiers
  • pmid:16387504
  • wos:000237041800006
  • scopus:33644914167
  • pmid:16387504
ISSN
0969-8043
DOI
10.1016/j.apradiso.2005.11.017
language
English
LU publication?
yes
id
c1897a73-00b4-4224-be50-4d52a33e0140 (old id 150618)
alternative location
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=16387504&dopt=Abstract
date added to LUP
2016-04-01 12:15:27
date last changed
2020-01-12 09:30:15
@article{c1897a73-00b4-4224-be50-4d52a33e0140,
  abstract     = {A car-borne NaI(TI) spectrometric system was used together with a Cs-137 source to obtain realistic data in the search for unshielded and semi-shielded orphan sources. The potassium-stripped counts (PSC) method was used to estimate the influence by the shielding on the detection ability. A reduction of about 5% in the critical distance was obtained for the semi-shielded source. A curve fitting method was also developed and evaluated. Results from the curve fitting method showed inferior ability to find the source compared to the PSC method. However, it can be a useful complementary tool, for characterisation of the source shielding, and estimation of the distance from the road. (c) 2005 Elsevier Ltd. All rights reserved.},
  author       = {Hjerpe, Thomas and Samuelsson, Christer},
  issn         = {0969-8043},
  language     = {eng},
  number       = {Dec 29},
  pages        = {551--555},
  publisher    = {Elsevier},
  series       = {Applied Radiation and Isotopes},
  title        = {Shielded and unshielded geometries in the search for orphan sources.},
  url          = {https://lup.lub.lu.se/search/ws/files/2848264/625275.pdf},
  doi          = {10.1016/j.apradiso.2005.11.017},
  volume       = {64},
  year         = {2006},
}