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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

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • 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

  • 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