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Dose Rate Effects in Fluorescence Chemical Dosimeters Exposed to Picosecond Electron Pulses: An Accurate Measurement of Low Doses at High Dose Rates

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F22%3A00554302" target="_blank" >RIV/61389021:_____/22:00554302 - isvavai.cz</a>

  • Alternative codes found

    RIV/68378271:_____/22:00554203 RIV/61388955:_____/22:00554818

  • Result on the web

    <a href="https://bioone.org/journals/radiation-research/volume-197/issue-2/RADE-20-00292.1/Dose-Rate-Effects-in-Fluorescence-Chemical-Dosimeters-Exposed-to-Picosecond/10.1667/RADE-20-00292.1.full" target="_blank" >https://bioone.org/journals/radiation-research/volume-197/issue-2/RADE-20-00292.1/Dose-Rate-Effects-in-Fluorescence-Chemical-Dosimeters-Exposed-to-Picosecond/10.1667/RADE-20-00292.1.full</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1667/RADE-20-00292.1" target="_blank" >10.1667/RADE-20-00292.1</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Dose Rate Effects in Fluorescence Chemical Dosimeters Exposed to Picosecond Electron Pulses: An Accurate Measurement of Low Doses at High Dose Rates

  • Original language description

    The development of ultra-intense electron pulse for applications needs to be accompanied by the implementation of a practical dosimetry system. In this study four different systems were investigated as dosimeters for low doses with a very high-dose-rate source. First, the effects of ultra-short pulses were investigated for the yields of the Fricke dosimeter based on acidic solutions of ferrous sulfate - it was established that the yields were not significantly affected by the high dose rates, so the Fricke dosimeter system was used as a reference. Then, aqueous solutions of three compounds as fluorescence chemical dosimeters were utilized, each operated at a different solution pH: terephthalic acid basic, trimesic acid acidic, and coumarin-3-carboxylic acid (C3CA) neutral. Fluorescence chemical dosimeters offer an attractive alternative to chemical dosimeters based on optical absorption for measuring biologically relevant low doses because of their higher sensitivity. The effects of very intense dose rate (TGy/ s) from pulses of fast electrons generated by a picosecond linear accelerator on the chemical yields of fluorescence chemical dosimeters were investigated at low peak doses (<20 Gy) and compared with yields determined under low-dose-rate irradiation from a 60 Co gamma-ray source (mGy/s). For the terephthalate and the trimesic acid dosimeters changes in the yields were not detected within the estimated (-10%) precision of the experiments, but, due to the complexity of the mechanism of the hydroxyl radical initiated reactions in solutions of the relevant aromatic compounds, significant reductions of the chemical yield (-60%) were observed when the C3CA dosimeter was irradiated with the ultra-short pulses.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database

  • CEP classification

  • OECD FORD branch

    10402 - Inorganic and nuclear chemistry

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2022

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Radiation Research

  • ISSN

    0033-7587

  • e-ISSN

    1938-5404

  • Volume of the periodical

    197

  • Issue of the periodical within the volume

    2

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    18

  • Pages from-to

    131-148

  • UT code for WoS article

  • EID of the result in the Scopus database

    2-s2.0-85124189023