Observation of dose-rate dependence in a Fricke dosimeter irradiated at low dose rates with monoenergetic X-rays.
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ABSTRACT:
SUBMITTER: O'Leary M
PROVIDER: S-EPMC5856745 | biostudies-literature | 2018 Mar
REPOSITORIES: biostudies-literature
Publications
Observation of dose-rate dependence in a Fricke dosimeter irradiated at low dose rates with monoenergetic X-rays.
O'Leary Mel M Boscolo Daria D Breslin Nicole N Brown Jeremy M C JMC Dolbnya Igor P IP Emerson Chris C Figueira Catarina C Fox Oliver J L OJL Grimes David Robert DR Ivosev Vladimir V Kleppe Annette K AK McCulloch Aaron A Pape Ian I Polin Chris C Wardlow Nathan N Currell Fred J FJ
Scientific reports 20180316 1
Absolute measurements of the radiolytic yield of Fe3+ in a ferrous sulphate dosimeter formulation (6 mM Fe2+), with a 20 keV x-ray monoenergetic beam, are reported. Dose-rate suppression of the radiolytic yield was observed at dose rates lower than and different in nature to those previously reported with x-rays. We present evidence that this effect is most likely to be due to recombination of free radicals radiolytically produced from water. The method used to make these measurements is also ne ...[more]
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