In Situ Optical Microspectroscopy Study of Isothermal Bleaching of γ-Irradiated International Simple Glass

Mariana Sendova; José A. Jiménez; Charles L. Crawford

doi:10.1021/acsphyschemau.3c00020

In Situ Optical Microspectroscopy Study of Isothermal Bleaching of γ-Irradiated International Simple Glass

Mariana Sendova, José A. Jiménez, Charles L. Crawford

Biochemistry, Chemistry, & Physics

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Abstract

The isothermal bleaching of γ-irradiated glass was studied at elevated temperatures (280–340 °C) by real-time in situ optical microspectroscopy for the first time. The study was performed on γ-irradiated (0.83 and 1.99 MGy) International Simple Glass (ISG) borosilicate nuclear waste simulant made by Mo-SCI Corporation (Rolla, MO, USA). The current investigation proposes real-time optical transmission methodology for the activation energy assessment of isothermal bleaching of γ-irradiated glass. The method is based on robust quantification of the Urbach energy decay rates and yields similar activation energies for both doses within ∼0.24–0.26 eV.

Original language	American English
Journal	ACS Physical Chemistry Au
DOIs	https://doi.org/10.1021/acsphyschemau.3c00020
State	Published - Nov 22 2023

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title = "In Situ Optical Microspectroscopy Study of Isothermal Bleaching of γ-Irradiated International Simple Glass",

abstract = " The isothermal bleaching of γ-irradiated glass was studied at elevated temperatures (280–340 °C) by real-time in situ optical microspectroscopy for the first time. The study was performed on γ-irradiated (0.83 and 1.99 MGy) International Simple Glass (ISG) borosilicate nuclear waste simulant made by Mo-SCI Corporation (Rolla, MO, USA). The current investigation proposes real-time optical transmission methodology for the activation energy assessment of isothermal bleaching of γ-irradiated glass. The method is based on robust quantification of the Urbach energy decay rates and yields similar activation energies for both doses within ∼0.24–0.26 eV.",

author = "Mariana Sendova and Jim{\'e}nez, {Jos{\'e} A.} and Crawford, {Charles L.}",

note = "Publisher Copyright: {\textcopyright} 2023 The Authors. Published by American Chemical Society.",

year = "2023",

month = nov,

day = "22",

doi = "10.1021/acsphyschemau.3c00020",

language = "American English",

journal = "ACS Physical Chemistry Au",

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T1 - In Situ Optical Microspectroscopy Study of Isothermal Bleaching of γ-Irradiated International Simple Glass

AU - Sendova, Mariana

AU - Jiménez, José A.

AU - Crawford, Charles L.

PY - 2023/11/22

Y1 - 2023/11/22

N2 - The isothermal bleaching of γ-irradiated glass was studied at elevated temperatures (280–340 °C) by real-time in situ optical microspectroscopy for the first time. The study was performed on γ-irradiated (0.83 and 1.99 MGy) International Simple Glass (ISG) borosilicate nuclear waste simulant made by Mo-SCI Corporation (Rolla, MO, USA). The current investigation proposes real-time optical transmission methodology for the activation energy assessment of isothermal bleaching of γ-irradiated glass. The method is based on robust quantification of the Urbach energy decay rates and yields similar activation energies for both doses within ∼0.24–0.26 eV.

AB - The isothermal bleaching of γ-irradiated glass was studied at elevated temperatures (280–340 °C) by real-time in situ optical microspectroscopy for the first time. The study was performed on γ-irradiated (0.83 and 1.99 MGy) International Simple Glass (ISG) borosilicate nuclear waste simulant made by Mo-SCI Corporation (Rolla, MO, USA). The current investigation proposes real-time optical transmission methodology for the activation energy assessment of isothermal bleaching of γ-irradiated glass. The method is based on robust quantification of the Urbach energy decay rates and yields similar activation energies for both doses within ∼0.24–0.26 eV.

UR - https://pubs.acs.org/doi/10.1021/acsphyschemau.3c00020

U2 - 10.1021/acsphyschemau.3c00020

DO - 10.1021/acsphyschemau.3c00020

M3 - Article

SN - 2694-2445

JO - ACS Physical Chemistry Au

JF - ACS Physical Chemistry Au

ER -

In Situ Optical Microspectroscopy Study of Isothermal Bleaching of γ-Irradiated International Simple Glass

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