Photon energy dependence of three fortuitous dosemeters from personal electronic devices, measured by optically stimulated luminescence

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Photon energy dependence of three fortuitous dosemeters from personal electronic devices, measured by optically stimulated luminescence. / Beerten, Koen; Vanhavere, Filip.

In: Radiation protection dosimetry, Vol. 140, No. 3, 08.2010, p. 294-299.

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@article{24b584c20f514bd4939c8eab7047eb89,
title = "Photon energy dependence of three fortuitous dosemeters from personal electronic devices, measured by optically stimulated luminescence",
abstract = "New data are presented with regard to the relative OSL sensitivity of three different emergency dosemeters irradiated to various photon energies approximately between 48 and 1250 keV using blue excitation light. Investigated components extracted from commonly worn objects include those from USB flash drives (alumina substrate), mobile phones (Ba-rich silicate) and credit cards (chip card module). Several basic properties have been investigated such as the overall radiation sensitivity, the shape of the decay curve and fading of the OSL signal. An increase of the sensitivity for low energies relative to 60Co gamma rays can be observed for the three dosemeters, the increase being very pronounced for the Ba-rich component (factor of 10) and less pronounced for the chip card module (factor of 2). It is concluded that proper dose correction factors for photon energy have to be applied in order to accurately determine the absorbed dose to tissue. The OSL sensitivity to neutron irradiation was investigated as well, but this was found to be less than the gamma sensitivity.",
keywords = "personal objects, fortuitous dosemeters, emergency dosimetry, energy dependence, optically stimulated luminescence",
author = "Koen Beerten and Filip Vanhavere",
note = "Score = 10",
year = "2010",
month = aug,
doi = "10.1093/rpd/ncq108",
language = "English",
volume = "140",
pages = "294--299",
journal = "Radioation Protection Dosimitry",
issn = "0144-8420",
publisher = "Oxford University Press",
number = "3",

}

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TY - JOUR

T1 - Photon energy dependence of three fortuitous dosemeters from personal electronic devices, measured by optically stimulated luminescence

AU - Beerten, Koen

AU - Vanhavere, Filip

N1 - Score = 10

PY - 2010/8

Y1 - 2010/8

N2 - New data are presented with regard to the relative OSL sensitivity of three different emergency dosemeters irradiated to various photon energies approximately between 48 and 1250 keV using blue excitation light. Investigated components extracted from commonly worn objects include those from USB flash drives (alumina substrate), mobile phones (Ba-rich silicate) and credit cards (chip card module). Several basic properties have been investigated such as the overall radiation sensitivity, the shape of the decay curve and fading of the OSL signal. An increase of the sensitivity for low energies relative to 60Co gamma rays can be observed for the three dosemeters, the increase being very pronounced for the Ba-rich component (factor of 10) and less pronounced for the chip card module (factor of 2). It is concluded that proper dose correction factors for photon energy have to be applied in order to accurately determine the absorbed dose to tissue. The OSL sensitivity to neutron irradiation was investigated as well, but this was found to be less than the gamma sensitivity.

AB - New data are presented with regard to the relative OSL sensitivity of three different emergency dosemeters irradiated to various photon energies approximately between 48 and 1250 keV using blue excitation light. Investigated components extracted from commonly worn objects include those from USB flash drives (alumina substrate), mobile phones (Ba-rich silicate) and credit cards (chip card module). Several basic properties have been investigated such as the overall radiation sensitivity, the shape of the decay curve and fading of the OSL signal. An increase of the sensitivity for low energies relative to 60Co gamma rays can be observed for the three dosemeters, the increase being very pronounced for the Ba-rich component (factor of 10) and less pronounced for the chip card module (factor of 2). It is concluded that proper dose correction factors for photon energy have to be applied in order to accurately determine the absorbed dose to tissue. The OSL sensitivity to neutron irradiation was investigated as well, but this was found to be less than the gamma sensitivity.

KW - personal objects

KW - fortuitous dosemeters

KW - emergency dosimetry

KW - energy dependence

KW - optically stimulated luminescence

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_101806

UR - http://knowledgecentre.sckcen.be/so2/bibref/7202

U2 - 10.1093/rpd/ncq108

DO - 10.1093/rpd/ncq108

M3 - Article

VL - 140

SP - 294

EP - 299

JO - Radioation Protection Dosimitry

JF - Radioation Protection Dosimitry

SN - 0144-8420

IS - 3

ER -

ID: 337543