Three-Dimensional Optical Random Access Memory Materials for Use as Radiation Dosimeters

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dc.contributor.authorCullum, Brian
dc.contributor.authorMobley, Joel
dc.contributor.authorBogard, James S.
dc.contributor.authorMoscovitch, Marko
dc.contributor.authorPhillips, Gary W.
dc.contributor.authorVo-Dinh, Tuan
dc.date.accessioned2024-09-04T19:59:22Z
dc.date.available2024-09-04T19:59:22Z
dc.date.issued2000-10-13
dc.description.abstractThis article describes the development of the first three-dimensional optical random access memory (3D-ORAM) material and readout system for monitoring energetic neutrons. Two different photochromic dyes, 5‘-chloro-6-nitro-1‘,3‘,3‘-trimethylspiro-[2H-1-benzopyran-2,2‘-indoline] (spirobenzopyran) and anthracene, have been investigated for use in these 3-D ORAM dosimeter materials. These dyes were immobilized in a poly(methyl methacrylate) support, and the resulting dosimeter materials were irradiated with neutrons from a Cf-252 source. Fluorescence measurements from the dosimeter show a dramatic decrease in the overall fluorescence intensity of the 3D-ORAM dosimeter exposed to the Cf-252, relative to a nonirradiated dosimeter. In addition, a two-photon excitation readout system has been developed for determining characteristics of the radiation that are necessary for estimating dose.
dc.description.sponsorshipThis research is sponsored by the U.S. Department of Energy under Contract DE-AC05-960R22464 (NN-20) program with Lockheed Energy Research Corp. In addition, B.M.C. and J.M. are also supported by an appointment to the Oak Ridge National Laboratory Postdoctoral Research Associates Program administered jointly by the Oak Ridge National Laboratory and Oak Ridge Institute for Science and Education.
dc.description.urihttps://pubs.acs.org/doi/10.1021/ac000638t
dc.format.extent6 pages
dc.genrejournal articles
dc.identifierdoi:10.13016/m2rbwh-lvld
dc.identifier.citationCullum, Brian M., Joel Mobley, James S. Bogard, Marko Moscovitch, Gary W. Phillips, and Tuan Vo-Dinh. “Three-Dimensional Optical Random Access Memory Materials for Use as Radiation Dosimeters.” Analytical Chemistry 72, no. 22 (November 1, 2000): 5612–17. https://doi.org/10.1021/ac000638t.
dc.identifier.urihttps://doi.org/10.1021/ac000638t
dc.identifier.urihttp://hdl.handle.net/11603/36054
dc.language.isoen_US
dc.publisherACS
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Chemistry & Biochemistry Department
dc.relation.ispartofUMBC Faculty Collection
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
dc.rights.urihttps://creativecommons.org/publicdomain/mark/1.0/
dc.titleThree-Dimensional Optical Random Access Memory Materials for Use as Radiation Dosimeters
dc.title.alternativeThreeDimensional Optical Random Access Memory (3D-ORAM) Materials and Read-out System for Radiation Dosimeters
dc.typeText
dcterms.creatorhttps://orcid.org/0000-0002-5250-8290

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