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Title: Analysis of Surface Leaching Processes in Vitrified High-Level Nuclear Wastes Using In-Situ Raman Imaging and Atomistic Modeling - Final Report

Abstract

The in situ analysis of surface conditions of vitrified nuclear wastes can provide an important check of the burial status of radioactive objects without risk of radiation exposure. Raman spectroscopy was initially chosen as the most promising method for testing the surface conditions of glasses undergoing chemical corrosion, and was used extensively during the first year. However, it was determined that infrared reflection spectroscopy was better suited to this particular need and was used for the remaining two years to investigate the surface corrosion behavior of model silicate glasses for extension to nuclear waste glasses. The developed methodology is consistent with the known theory of optical propagation of dielectric media and uses the Kramers-Kronig formalism. The results show that it is possible to study the corrosion of glass by analyzing the glass surface using reflection fast Fourier infrared measurements and the newly developed ''dispersion analysis method.'' The data show how this analysis can be used to monitor the corrosion behavior of vitrified waste glasses over extended periods of storage.

Authors:
Publication Date:
Research Org.:
Univ. of Arizona, Tucson, AZ (US)
Sponsoring Org.:
USDOE Office of Environmental Management (EM) (US)
OSTI Identifier:
781090
Report Number(s):
DOE/ER/45616; Project Number 54982
Project Number 54982; TRN: US0106132
DOE Contract Number:  
FG07-96ER45616
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 24 Apr 2001
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 36 MATERIALS SCIENCE; CORROSION RESISTANCE; GLASS; LEACHING; HIGH-LEVEL RADIOACTIVE WASTES; SURFACE PROPERTIES; WASTE FORMS; RAMAN SPECTROSCOPY; INFRARED RADIATION; REFLECTION; IN-SITU ANALYSIS; VITRIFIED NUCLEAR WASTES; DEGRADATION PROCESS; GLASS COMPOSITIONS; VITRIFIED WASTE GLASSES; REFLECTION INFRARED ABSORPTION; INFRARED REFLECTION; NEAR FIELD OPTICAL MICROSCOPY

Citation Formats

Simmons, Joseph H. Analysis of Surface Leaching Processes in Vitrified High-Level Nuclear Wastes Using In-Situ Raman Imaging and Atomistic Modeling - Final Report. United States: N. p., 2001. Web. doi:10.2172/781090.
Simmons, Joseph H. Analysis of Surface Leaching Processes in Vitrified High-Level Nuclear Wastes Using In-Situ Raman Imaging and Atomistic Modeling - Final Report. United States. doi:10.2172/781090.
Simmons, Joseph H. Tue . "Analysis of Surface Leaching Processes in Vitrified High-Level Nuclear Wastes Using In-Situ Raman Imaging and Atomistic Modeling - Final Report". United States. doi:10.2172/781090. https://www.osti.gov/servlets/purl/781090.
@article{osti_781090,
title = {Analysis of Surface Leaching Processes in Vitrified High-Level Nuclear Wastes Using In-Situ Raman Imaging and Atomistic Modeling - Final Report},
author = {Simmons, Joseph H.},
abstractNote = {The in situ analysis of surface conditions of vitrified nuclear wastes can provide an important check of the burial status of radioactive objects without risk of radiation exposure. Raman spectroscopy was initially chosen as the most promising method for testing the surface conditions of glasses undergoing chemical corrosion, and was used extensively during the first year. However, it was determined that infrared reflection spectroscopy was better suited to this particular need and was used for the remaining two years to investigate the surface corrosion behavior of model silicate glasses for extension to nuclear waste glasses. The developed methodology is consistent with the known theory of optical propagation of dielectric media and uses the Kramers-Kronig formalism. The results show that it is possible to study the corrosion of glass by analyzing the glass surface using reflection fast Fourier infrared measurements and the newly developed ''dispersion analysis method.'' The data show how this analysis can be used to monitor the corrosion behavior of vitrified waste glasses over extended periods of storage.},
doi = {10.2172/781090},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {4}
}