방사선방호 및 안전

  • [Radiation Measurements] Characterization of thermoluminescence of chip cards for emergency dosimetry비상시 선량평가를 위한 칩 카드의 열형광 특성

    KAERI / 김형택*

  • 출처
    Radiation Measurements
  • 등재일
    June 2020
  • 저널이슈번호
    Volume 134, 106321
  • 내용

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    Abstract
    The thermoluminescence of different chip cards was measured and analyzed for emergency dosimetry. Three SIM cards that are commonly found in mobile communication providers in South Korea and three smart IC cards that can be purchased online were used for the experiment. Chemical element analysis based on EDS mapping images was carried out and different weight percent of silica was found for each chip card. Glow curves of radiation induced signals through different combinations of optical filters showed blue or red emissions depending on chip cards. Sensitivity change resulting from the thermal stimulation was found to be 1.8 ± 0.27 and 0.5 ± 0.06 for the blue and red emission, respectively. In addition, signal fading resulted in more than 20% of the initial signal remaining 20 days after irradiation, when the 100–150 °C signal is used. Furthermore, the dose response was recorded from 50 mGy to 10 Gy for each chip card.

     

    Affliation

    HyoungtaekKimaMin ChaeKimabJungilLeeaMichaelDischercClemensWodadSangyeobLimaInsuChangaSeung KyuLeeaJang-LyulKimaKisooChungea
    Radiation Safety Management Division, Korea Atomic Energy Research Institute, 989-111 Daedeok-daero, Yuseong-gu, Daejeon, 34057, Republic of Korea
    b
    Department of Nuclear Engineering, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
    c
    Paris-Lodron-University of Salzburg, Department of Geography and Geology, Salzburg, Austria
    d
    Helmholtz Zentrum München, Institute of Radiation Medicine, Neuherberg, Germany
    e
    Gyeongsang National University, Department of Physics, Jinju, Republic of Korea

  • 키워드
    Emergency dosimetryChip cardThermoluminescenceEDS mapping ImageOptical filter
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