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    Effect of additives: organic-metal oxide nanocomposites for γ-ray sensors

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    106290D.pdf (435.6Kb)
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    https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10629/2301084/Effect-of-additives--Organic-metal-oxide-nanocomposites-for-%CE%B3/10.1117/12.2301084.full?SSO=1
    Permanent Link
    10.1117/12.2301084
    http://hdl.handle.net/11603/12705
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    • UMBC Chemical, Biochemical & Environmental Engineering Department
    • UMBC Chemistry & Biochemistry Department
    • UMBC Computer Science and Electrical Engineering Department
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    Metadata
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    Author/Creator
    Singh, N. B.
    Su, Ching Hua
    Arnold, Bradley
    Choa, Fow-Sen
    Cooper, Christopher
    Sova, Stacey
    Gill, Puneet
    Dayal, Vishall
    Kelly, Lisa
    Prasad, Narasimha
    Smith, Paul
    Cullum, Brian
    Date
    2018-05-23
    Type of Work
    7 pages
    Text
    journal articles
    Citation of Original Publication
    N. B. Singh, N. B. Singh, Ching Hua Su, Ching Hua Su, Bradley Arnold, Bradley Arnold, Fow-Sen Choa, Fow-Sen Choa, Christopher Cooper, Christopher Cooper, Stacey Sova, Stacey Sova, Puneet Gill, Puneet Gill, Vishall Dayal, Vishall Dayal, Lisa Kelly, Lisa Kelly, Narasimha Prasad, Narasimha Prasad, Paul Smith, Paul Smith, Brian Cullum, Brian Cullum, "Effect of additives: organic-metal oxide nanocomposites for γ-ray sensors", Proc. SPIE 10629, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XIX, 106290D (23 May 2018); doi: 10.1117/12.2301084;
    Rights
    This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
    Copyright (2018) Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
    Subjects
    γ-ray
    nanocomposite
    urea
    oxides
    detectors
    sensors
    radiation
    exposure
    Abstract
    The transition metal oxide embodied organic composites have great promise for high energy radiation detection. The interaction of high energy radiation such as γ-rays with the organic composite can generate photoelectric responses, Compton scattering and electron hole pairs, which can provide favorable properties to enhance the radiation detectivity of the composite. These effects along with changes of oxidation state of metal oxides, provide significant change in the electrical characteristics of composites due to radiation exposure. We have developed nickel oxide (NiO₂) nanoparticles embodied urea composite (urea-NiO₂), and determined effect of γ-radiation on the current – voltage characteristics in the frequency range of 100 Hz to 100,000Hz. In this paper, we describe the results of effect of additional oxidizing agent MnO₂ (urea-NiO₂-MnO₂) on the morphology, processing and current voltage characteristics due to exposure of Cs-137 γ-radiation. It was observed that addition of MnO₂ in urea-NiO₂ composite decreases the sensitivity of detection. However, urea-NiO₂-MnO₂ composite recovers to original properties after irradiation much faster than urea-NiO₂ composite.


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    Albin O. Kuhn Library & Gallery
    University of Maryland, Baltimore County
    1000 Hilltop Circle
    Baltimore, MD 21250
    www.umbc.edu/scholarworks

    Contact information:
    Email: scholarworks-group@umbc.edu
    Phone: 410-455-3021


    If you wish to submit a copyright complaint or withdrawal request, please email mdsoar-help@umd.edu.