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CAN AN ENERGY-COMPENSATED SOLID-STATE X-RAY DETECTOR BE USED FOR RADIATION PROTECTION APPLICATIONS AT HIGHER PHOTON ENERGIES?

Ören, Ünal LU ; Herrnsdorf, Lars LU ; Gunnarsson, Mikael LU ; Mattsson, Sören LU and Rääf, Christopher LU (2016) In Radiation Protection Dosimetry
Abstract
The objective of this study was to investigate the characteristics of a solid-state detector commonly available at hospitals for parallel use as a real-time personal radiation monitor following radiation emergency situations. A solid-state detector probe with an inherent filtration (R100, RTI Electronics AB, Mölndal, Sweden) was chosen for evaluation. The energy dependence and the linearity in signal response with kerma in air were examined, and the detector was exposed to both X-ray beams using a conventional X-ray unit with effective photon energies ranging between 28.5 and 48.9 keV and to gamma rays 1.17 and 1.33 MeV from (60)Co. The R100 exhibited ∼1.7 times over-response at the lowest X-ray energy relative to the (60)Co source. The... (More)
The objective of this study was to investigate the characteristics of a solid-state detector commonly available at hospitals for parallel use as a real-time personal radiation monitor following radiation emergency situations. A solid-state detector probe with an inherent filtration (R100, RTI Electronics AB, Mölndal, Sweden) was chosen for evaluation. The energy dependence and the linearity in signal response with kerma in air were examined, and the detector was exposed to both X-ray beams using a conventional X-ray unit with effective photon energies ranging between 28.5 and 48.9 keV and to gamma rays 1.17 and 1.33 MeV from (60)Co. The R100 exhibited ∼1.7 times over-response at the lowest X-ray energy relative to the (60)Co source. The detector demonstrated a linear response (R(2) = 1) when irradiated with (60)Co to air kerma values in the range of 20-200 mGy. The conclusion is that high-energy photons such as those from (60)Co can be detected by the R100 with an energy response within a factor of <2 over the energy range examined and that the detector can provide real-time dose measurements following nuclear or radiological events. (Less)
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organization
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type
Contribution to journal
publication status
published
subject
in
Radiation Protection Dosimetry
publisher
Nuclear Technology Publishing
external identifiers
  • pmid:26622043
  • scopus:84979032217
  • wos:000383492100045
ISSN
1742-3406
DOI
10.1093/rpd/ncv485
language
English
LU publication?
yes
id
8eebe6f6-faf0-4226-b82f-d09f4840fb6d (old id 8505953)
alternative location
http://www.ncbi.nlm.nih.gov/pubmed/26622043?dopt=Abstract
date added to LUP
2016-01-04 19:48:31
date last changed
2017-01-01 07:51:35
@article{8eebe6f6-faf0-4226-b82f-d09f4840fb6d,
  abstract     = {The objective of this study was to investigate the characteristics of a solid-state detector commonly available at hospitals for parallel use as a real-time personal radiation monitor following radiation emergency situations. A solid-state detector probe with an inherent filtration (R100, RTI Electronics AB, Mölndal, Sweden) was chosen for evaluation. The energy dependence and the linearity in signal response with kerma in air were examined, and the detector was exposed to both X-ray beams using a conventional X-ray unit with effective photon energies ranging between 28.5 and 48.9 keV and to gamma rays 1.17 and 1.33 MeV from (60)Co. The R100 exhibited ∼1.7 times over-response at the lowest X-ray energy relative to the (60)Co source. The detector demonstrated a linear response (R(2) = 1) when irradiated with (60)Co to air kerma values in the range of 20-200 mGy. The conclusion is that high-energy photons such as those from (60)Co can be detected by the R100 with an energy response within a factor of &lt;2 over the energy range examined and that the detector can provide real-time dose measurements following nuclear or radiological events.},
  author       = {Ören, Ünal and Herrnsdorf, Lars and Gunnarsson, Mikael and Mattsson, Sören and Rääf, Christopher},
  issn         = {1742-3406},
  language     = {eng},
  publisher    = {Nuclear Technology Publishing},
  series       = {Radiation Protection Dosimetry},
  title        = {CAN AN ENERGY-COMPENSATED SOLID-STATE X-RAY DETECTOR BE USED FOR RADIATION PROTECTION APPLICATIONS AT HIGHER PHOTON ENERGIES?},
  url          = {http://dx.doi.org/10.1093/rpd/ncv485},
  year         = {2016},
}