Retrospective dose reconstruction for an incident involving a concealed radium needle
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652052%3A_____%2F18%3AN0000013" target="_blank" >RIV/86652052:_____/18:N0000013 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.radmeas.2018.09.003" target="_blank" >http://dx.doi.org/10.1016/j.radmeas.2018.09.003</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.radmeas.2018.09.003" target="_blank" >10.1016/j.radmeas.2018.09.003</a>
Alternative languages
Result language
angličtina
Original language name
Retrospective dose reconstruction for an incident involving a concealed radium needle
Original language description
A historical radium (226Ra) needle was found in a building in Prague. The needle was concealed in a wall under a window frame. Ambient dose equivalent rate measured in close proximity of the frame reached up to 2 mSv/h. The place was situated between a corridor and a staircase where people normally did not stay so any significant radiation exposures were not suspected. Because of a remarkable history of the building, our speculation was that the needle could have been concealed there during World War II. In order to verify this assumption, one adjacent brick nearest to the place of the find was removed. The brick was used for retrospective dosimetry based on Optically Stimulated Luminescence (OSL) of quartz extracted from a chosen brick block. Dose rate values inside of the brick block were determined via a laboratory reconstruction. The original exposure conditions were simulated using the needle and a brick wall containing Thermoluminescence detectors (TLD). We also performed a computational simulation with a Monte Carlo technique. It provided us a more detailed dose rate distribution inside of the brick block. Finally, we compared OSL quartz, TLD and Monte Carlo results. A good agreement among the results supports the speculation that the radium needle was concealed during World War II.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20601 - Medical engineering
Result continuities
Project
<a href="/en/project/VI20152020033" target="_blank" >VI20152020033: Methodologies for determination of personal radiation doses in the view of nuclear and radiological terrorism threats</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Radiation Measurements
ISSN
1350-4487
e-ISSN
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Volume of the periodical
119
Issue of the periodical within the volume
December
Country of publishing house
GB - UNITED KINGDOM
Number of pages
6
Pages from-to
27-32
UT code for WoS article
000453491700006
EID of the result in the Scopus database
2-s2.0-85052966817