Shielded and unshielded geometries in the search for orphan sources.
(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:
https://lup.lub.lu.se/record/150618
- author
- Hjerpe, Thomas LU and Samuelsson, Christer LU
- organization
- publishing date
- 2006
- 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
- 2022-01-27 01:06:28
@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}}, keywords = {{radioactive source search; mobile gamma spectrometry; orphan sources}}, 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/files/2848264/625275.pdf}}, doi = {{10.1016/j.apradiso.2005.11.017}}, volume = {{64}}, year = {{2006}}, }