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

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dc.contributor.authorSingh, N. B.
dc.contributor.authorSu, Ching Hua
dc.contributor.authorArnold, Bradley
dc.contributor.authorChoa, Fow-Sen
dc.contributor.authorCooper, Christopher
dc.contributor.authorSova, Stacey
dc.contributor.authorGill, Puneet
dc.contributor.authorDayal, Vishall
dc.contributor.authorKelly, Lisa
dc.contributor.authorPrasad, Narasimha
dc.contributor.authorSmith, Paul
dc.contributor.authorCullum, Brian
dc.date.accessioned2019-02-05T15:40:10Z
dc.date.available2019-02-05T15:40:10Z
dc.date.issued2018-05-23
dc.descriptionSPIE Defense + Security, 2018, Orlando, Florida, United States
dc.description.abstractThe 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.en_US
dc.description.sponsorshipThe authors would like to acknowledge the support of Space Life and Physical Sciences Division, Human Exploration and Operations Mission Directorate, NASA Headquarter and Marshall Space Flight Center Huntsville Alabama.en_US
dc.description.urihttps://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=1en_US
dc.format.extent7 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m2t0qj-tcm7
dc.identifier.citationN. 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;en_US
dc.identifier.uri10.1117/12.2301084
dc.identifier.urihttp://hdl.handle.net/11603/12705
dc.language.isoen_USen_US
dc.publisherSPIEen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Chemistry & Biochemistry Department Collection
dc.relation.ispartofUMBC Faculty Collection
dc.relation.ispartofUMBC Student Collection
dc.relation.ispartofUMBC Computer Science and Electrical Engineering Department
dc.relation.ispartofUMBC Chemical, Biochemical & Environmental Engineering Department
dc.rightsThis 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.
dc.rightsCopyright (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.
dc.subjectγ-rayen_US
dc.subjectnanocompositeen_US
dc.subjectureaen_US
dc.subjectoxidesen_US
dc.subjectdetectorsen_US
dc.subjectsensorsen_US
dc.subjectradiationen_US
dc.subjectexposureen_US
dc.titleEffect of additives: organic-metal oxide nanocomposites for γ-ray sensorsen_US
dc.typeTexten_US

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