Effect of additives: γ-Ray sensors based on ionizing organic nanocomposites

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dc.contributor.authorDayal, Vishall
dc.contributor.authorCooper, Christopher
dc.contributor.authorSova, Stacey
dc.contributor.authorGill, Puneet
dc.contributor.authorSu, Ching-Hua
dc.contributor.authorArnold, Bradley
dc.contributor.authorChoa, Fow-Sen
dc.contributor.authorKelly, Lisa
dc.contributor.authorCullum, Brian
dc.contributor.authorSmith, Paul
dc.contributor.authorSingh, N. B.
dc.date.accessioned2019-02-05T15:50:48Z
dc.date.available2019-02-05T15:50:48Z
dc.description.abstractWe have developed ionizing organic based composites which have demonstrated great promise for radiation sensing. Nickel oxide has been proven as an active material for detecting high energy radiation. The oxidation state of unusual oxides such as nickel oxide in nanocomposites of ionizing organics changes much faster than thin film or bulk, and hence increases the sensitivity for radiation sensing. The resistivity of the oxide composite increases following sequential irradiation processes because of the decrease in holes' concentration. In this paper, we will present the effect of additional oxidizing agent on the morphology, processing and sensing of γ-ray by oxides - urea based nanocomposites. It was observed that addition of MnO₂ decreases the sensitivity. However, it recovers to original properties after irradiation much faster than undoped composites.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://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20180004184.pdfen_US
dc.format.extent6 pagesen_US
dc.genretechnical reportsen_US
dc.identifierdoi:10.13016/m2rypb-ifes
dc.identifier.urihttp://hdl.handle.net/11603/12706
dc.language.isoen_USen_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 Chemical, Biochemical & Environmental Engineering Department
dc.relation.ispartofUMBC Computer Science and Electrical 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.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.*
dc.rightsPublic Domain Mark 1.0
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
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: γ-Ray sensors based on ionizing organic nanocompositesen_US
dc.typeTexten_US

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