Spectroscopic studies of the several isomers of UO3

Lucas E. Sweet, Dallas D. Reilly, David G. Abrecht, Edgar C. Buck, David E. Meier, Yin Fong Su, Carolyn S. Brauer, Jon M. Schwantes, Russell G. Tonkyn, James E. Szecsody, Thomas A. Blake, Timothy J. Johnson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations


Uranium trioxide is known to adopt seven different structural forms. While these structural forms have been well characterized using x-ray or neutron diffraction techniques, little work has been done to characterize their spectroscopic properties, particularly of the pure phases. Since the structural isomers of UO3 all have similar thermodynamic stabilities and most tend to hydrolyze under open atmospheric conditions, mixtures of UO3 phases and the hydrolysis products are common. Much effort went into isolating pure phases of UO3. Utilizing x-ray diffraction as a sample identification check, UV/Vis/NIR spectroscopic signatures of aα-UO3, β-UO3, γ-UO3 and aα-UO2(OH)2 products were obtained. The spectra of the pure phases can now be used to characterize typical samples of UO3, which are often mixtures of isomers.

Original languageEnglish (US)
Title of host publicationOptics and Photonics for Counterterrorism, Crime Fighting and Defence IX; and Optical Materials and Biomaterials in Security and Defence Systems Technology X
StatePublished - 2013
Event2013 Conference on Optics and Photonics for Counterterrorism, Crime Fighting and Defence - Dresden, Germany
Duration: Sep 23 2013Sep 25 2013

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


Other2013 Conference on Optics and Photonics for Counterterrorism, Crime Fighting and Defence

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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